chemistry Crossword Puzzles
Camp Fortis 2021-06-16
Across
- What is the module code for the introductory class for higher level Chemistry modules? (Hint: Chemistry the Central Science)
- How old is our NUS Chemistry Department?
- Who is the head of NUS Chemistry Department?
- What is the theme of the camp?
- How many different types of d orbitals are there?
Down
- What is the Instagram page of NUS Chemical Sciences Society?
- Who is the staff advisor for NUS Chemical Sciences Society?
- How many isotopes are there for the element hydrogen?
- What is the name of the canteen in Science?
- Silence is
10 Clues: Silence is • What is the theme of the camp? • How old is our NUS Chemistry Department? • What is the name of the canteen in Science? • Who is the head of NUS Chemistry Department? • How many different types of d orbitals are there? • How many isotopes are there for the element hydrogen? • Who is the staff advisor for NUS Chemical Sciences Society? • ...
Camp Fortis 2021-06-06
Across
- How many isotopes are there for the element hydrogen?
- How many different types of d orbitals are there?
- What is the theme of the camp?
- How old is our NUS Chemistry Department?
- Who is the head of NUS Chemistry Department?
Down
- What is the name of the canteen in Science?
- Who is the staff advisor for NUS Chemical Sciences Society?
- What is the Instagram page of NUS Chemical Sciences Society?
- Silence is _____
- What is the module code for the introductory class for higher level Chemistry modules? (Hint: Chemistry the Central Science)
10 Clues: Silence is _____ • What is the theme of the camp? • How old is our NUS Chemistry Department? • What is the name of the canteen in Science? • Who is the head of NUS Chemistry Department? • How many different types of d orbitals are there? • How many isotopes are there for the element hydrogen? • Who is the staff advisor for NUS Chemical Sciences Society? • ...
Chemistry 2020-03-01
Across
- the process by which a gas, liquid, or solid is dispersed homogeneously in a gas, liquid, or solid without chemical change.
- (of a solution) containing the maximum amount of solute capable of being dissolved under given conditions.
- (of an organic compound) having a double or triple bond and capable of taking on elements or groups by direct chemical combination without the liberation of other elements or compounds, as ethylene, CH2=CH2; undersaturated.
- of or relating to ions.
- to separate or change into ions
- the property or power of conducting heat, electricity, or sound.
- the number of moles of solute per liter of solution.
- the substance dissolved in a given solution.
Down
- a substance that dissolves another to form a solution.
- negatively charged ion, as one attracted to the anode in electrolysis.
- to separate from a solution as a precipitate.
- the quality or property of being soluble; relative capability of being dissolved.
- he reversible resolution or decomposition of a complex substance into simpler constituents caused by variation in physical conditions, as when water gradually decomposes into hydrogen and oxygen under great heat in such a way that when the temperature is lowered the liberated elements recombine.
- of or relating to or caused by molecules
- capable of being dissolved or liquefied
- positively charged ion that is attracted to the cathode in electrolysis.
16 Clues: of or relating to ions. • to separate or change into ions • capable of being dissolved or liquefied • of or relating to or caused by molecules • the substance dissolved in a given solution. • to separate from a solution as a precipitate. • the number of moles of solute per liter of solution. • a substance that dissolves another to form a solution. • ...
Chemistry 2021-10-22
Across
- what you do to eat raw chicken
- How raw metals are turned into bars
- a new substance is created
- What happens when food like a apple is left out in front of flies
- This happens to sugar when it's put in water
- no change in substance
- What water turns into when it's evaporated
Down
- what you do to water on a stove
- When you throw things like wood into a fire
- When water turns solid and cold
- When paper is split in two
- what happens to water vapor when a cloud lets go of it
- what you do to a apple to make slices of it
- What happens to things like iron nails when they come in contact with water
- When something like bread is left out for multiple day without flies eating it
- what happens when you light a match near hydrogen gas
16 Clues: no change in substance • When paper is split in two • a new substance is created • what you do to eat raw chicken • what you do to water on a stove • When water turns solid and cold • How raw metals are turned into bars • What water turns into when it's evaporated • When you throw things like wood into a fire • what you do to a apple to make slices of it • ...
chemistry 2013-05-07
Across
- dioxide:You breath in oxygen and breath out.....
- is a substance that is made up of two or more simpler substances?
- chemical compound is a chemical combination of two or more chemical elements?
- reaction is a reaction where the substances reacting?
- triangle:What is the chemical triangle that consists of oxygen, heat,fuel
- is the smallest amount of a chemical substance?
- chemical element is derived from the scientist luigi galvani?
- is the basic unit that makes up all matter?
Down
- is the reaction where the reactant burns in oxygen, producing a limited number of products?
- is it called when something goes old and brown?
- is the word that describes a reaction in which the system asorbs energy?
- is the chemical element with symbol O called?
- gas:What chemical element is abbreviated to GHG?
- is the substance made of only one kind of atom
- chemical element is got a atomic number of 7?
- is an electrically charged atom or group of atoms
16 Clues: is the basic unit that makes up all matter? • is the chemical element with symbol O called? • chemical element is got a atomic number of 7? • is the substance made of only one kind of atom • is it called when something goes old and brown? • is the smallest amount of a chemical substance? • dioxide:You breath in oxygen and breath out..... • ...
Chemistry 2022-06-20
Across
- Number Number of protons
- A mix of multiple different metals
- State of matter. Attraction between particles holds them in a shape very strongly. Particles vibrate.
- Anything that has mass and takes up space
- A particle (atom) with either a positive (Cation) or negative (Anion) charge.
- State of matter. Particles move fast. Flow out of the container.
- Substance containing one type of particle. Two types: Element and compound.
- Group/Family/Column on the Periodic Table. Very unreactive because it has full valence shells. Colourless gases at room temperature.
Down
- A table that lists the known elements in row (period) and columns (group/family).
- Has an atomic number of 8 on the periodic table. Needed for breathing.
- First element of the periodic table and the Alkali Metals
- Group/Family/Column on the Periodic Table. Shiny, soft, malleable, low melting point. One valence electron.
- Has an atomic mass of about 15.9994
- The symbol is Al on the periodic table
- Group/Family/Column on the Periodic Table. 7 valence electrons. Fluoride, Chlorine, Bromine, Iodine, Astatine.
- State of matter. Particles move a little, and take the shape of its container.
16 Clues: Number Number of protons • A mix of multiple different metals • Has an atomic mass of about 15.9994 • The symbol is Al on the periodic table • Anything that has mass and takes up space • First element of the periodic table and the Alkali Metals • State of matter. Particles move fast. Flow out of the container. • ...
chemistry 2024-06-06
Across
- елемент без вкус и миризма, многовалентен неметал
- разновидност на химичен елемент с еднакъв брой протони, но различен брой неутрони
- различните модификации, различните форми на един и същ химичен елемент
- в атома съвкупността от позволени състояния на електрон с определена енергия
- активен метал, който при съприкосновение с въздуха пламва и изгаря
- химична реакция между основа и киселина, при която се получава сол и вода
- атоми с еднакви масови числа, но с различен брой протони в атомните ядра
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- група минерали, които са соли на силициеви киселини
- съединение на химичен елемент с кислород
- разпадане на веществата във водедн разтвор до йони
- природен закон,който отразява периодичната зависимост между свойствата на химичните елементи и техните съединения
- вещество, което променя цвета си под действието на съединения с киселинни или с основни свойства
- вещества, които в чист вид имат блестяща повърхност и провеждат относително добре електричество и топлина
- елементарна частица, присъстваща в електронните обвивки на атомите на всички химични елементи
- лектронеутрални частици, изградени от атомно ядро и електронна обвивка
- химичен елемент с атомен номер 65
16 Clues: химичен елемент с атомен номер 65 • съединение на химичен елемент с кислород • елемент без вкус и миризма, многовалентен неметал • разпадане на веществата във водедн разтвор до йони • група минерали, които са соли на силициеви киселини • активен метал, който при съприкосновение с въздуха пламва и изгаря • ...
Chemistry 2024-07-29
Chemistry 2023-06-23
Across
- P-31 and P-32 are examples of _____.
- The red color of blood is due to this metal in haemoglobin
- Rutherford was able to obtain a then gold foil for his experiment because of this property of metals.
- The net charge of an atom is ____.
- The "Billiard Ball" model of the atom was given by this scientist.
- The gas filled in chips packets to prevent spoilage of food
- An octa-atomic yello solid.
Down
- THe number of atoms in a molecule of an element.
- Direct conversion of gas to solid.
- Number of nucleons is called _____
- Helium, Neon and Argon are all examples of ___
- Particles are tightly packed in this state.
- Example of an iron alloy.
- Homogeneous mixture of acetic acid and water.
- THe number of these particles determines the identity of an element.
- Metal that is solid at room temperature, but melts in our palms.
16 Clues: Example of an iron alloy. • An octa-atomic yello solid. • Direct conversion of gas to solid. • Number of nucleons is called _____ • The net charge of an atom is ____. • P-31 and P-32 are examples of _____. • Particles are tightly packed in this state. • Homogeneous mixture of acetic acid and water. • Helium, Neon and Argon are all examples of ___ • ...
Chemistry 2023-07-06
Across
- A mineral found in some foods
- A chemical element with the symbol N and atomic number 7
- A chemical that can dissolve in water, combine with acids to form salts, and make acids less acidic
- A chemical element with the symbol Li and atomic number 3
- The chemical element with the symbol H and atomic number 1
- The smallest particle of a substance that has all of the physical and chemical properties of that substance
- The quality or condition of being reactive
Down
- Any basic substance that is used in or produced by a reaction involving changes to atoms or molecules
- A negatively charged particle
- A chemical element with the symbol Ti and atomic number 22
- A chemical substance that cannot be broken down into other substances
- What is O2
- a chemical element with the symbol Cu and atomic number 29
- The second lightest member of the halogen elements
- The smallest part of an element that can exist.
- Any atom or group of atoms that bears one or more positive or negative electrical charges
16 Clues: What is O2 • A mineral found in some foods • A negatively charged particle • The quality or condition of being reactive • The smallest part of an element that can exist. • The second lightest member of the halogen elements • A chemical element with the symbol N and atomic number 7 • A chemical element with the symbol Li and atomic number 3 • ...
Chemistry 2022-06-22
Across
- a person's ability to respond physically and mentally to external stimuli.
- the process of mixing or being mixed.
- atoms as a source of nuclear energy.
- a subatomic particle found in the nucleus of every atom.
- of or denoting a process involving substances in different phases (solid, liquid, or gaseous).
- the action of purifying a liquid by a process of heating and cooling.
- a means of solving a problem or dealing with a difficult situation.
- is the scientific study of the structure of substances and of the way that they react with other substances.
- a negatively charged subatomic particle.
Down
- the action or process of filtering something.
- an atom or group of atoms that carries a positive or negative electric charge as a result of having lost or gained one or more electrons.
- physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
- a thing that is composed of two or more separate elements; a mixture.
- consisting of parts all of the same kind.
- a subatomic particle found in the nucleus of every atom except that of simple hydrogen.
- the process of turning from liquid into vapor.
16 Clues: atoms as a source of nuclear energy. • the process of mixing or being mixed. • a negatively charged subatomic particle. • consisting of parts all of the same kind. • the action or process of filtering something. • the process of turning from liquid into vapor. • a subatomic particle found in the nucleus of every atom. • ...
Chemistry 2022-06-22
Across
- a chemical process in which two or more substances act mutually on each other and are changed into different substances
- a substance made by mixing other substances together
- the basic unit of a chemical element.
- a subatomic particle found in the nucleus of every atom.
- a mixture in which the composition is not uniform throughout the mixture.
- the action of purifying a liquid by a process of heating and cooling.
- a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent).
- the branch of science that deals with the identification of the substances of which matter is composed
- a negatively charged subatomic particle.
Down
- the action or process of filtering something
- an atom or group of atoms that has an electric charge
- physical substance in general which occupies space
- a substance made from two or more different elements that have been chemically joined.
- a mixture in which the composition is uniform throughout the mixture.
- a subatomic particle found in the nucleus of every atom except that of simple hydrogen.
- the process of turning from liquid into vapor
16 Clues: the basic unit of a chemical element. • a negatively charged subatomic particle. • the action or process of filtering something • the process of turning from liquid into vapor • physical substance in general which occupies space • a substance made by mixing other substances together • an atom or group of atoms that has an electric charge • ...
Chemistry 2023-09-29
Across
- when two or more substances are combined but not chemically
- makes up everything in the world
- positive atoms that can also determine the number of electrons and the atomic number of an element
- pure substance that can't be broken down into simpler substances physically
- when two things that are combined are the same
- rings/shells around nucleus
- neutral atoms that have no charge
- rows left to right on the Periodic Table
- columns up to down on the Periodic Table
- negative atoms that can also determine number of protons and group for elements
- the unit we're learning
Down
- chart of elements ranked by characteristics
- electrons in the outer most shell of a energy level of a nucleus
- when atoms of 2 or more are chemically combined
- when two things are combined are different
- number on the Periodic Table that ranks the element
16 Clues: the unit we're learning • rings/shells around nucleus • makes up everything in the world • neutral atoms that have no charge • rows left to right on the Periodic Table • columns up to down on the Periodic Table • when two things are combined are different • chart of elements ranked by characteristics • when two things that are combined are the same • ...
Chemistry 2025-04-01
Across
- ethanol is impure which is purify by __ process
- __ is highly fleamable
- it is non toxic
- __ and Karanja converted into veg oil
- __ of hydrogen in steel cylinder make steel brital
- ethanol can be __
- mixture is __ for 6hr
- __calorimeter used to determine CV of volatile fuel
Down
- __and elemental are types of coal analysis
- 2 electrod, crucible with fuel
- obtained from molasess in presence of enzyme
- _calorimeter used to determine CV of non-volatile fuel
- _volume of high volatile liquid fuel
- glucose and fructose treated with zymase to produce_
- __ is treated with steam in presence of FeO gives Hydrogen
- __and 5% to 25% ethanol
16 Clues: it is non toxic • ethanol can be __ • mixture is __ for 6hr • __ is highly fleamable • __and 5% to 25% ethanol • 2 electrod, crucible with fuel • _volume of high volatile liquid fuel • __ and Karanja converted into veg oil • __and elemental are types of coal analysis • obtained from molasess in presence of enzyme • ethanol is impure which is purify by __ process • ...
Chemistry 2024-11-03
Across
- A characteristic of a substance that describes how it reacts with other substances to form new substances.
- An element that exhibits properties of both metals and nonmetals.
- A neutrally charge particle
- An element that typically exhibits good electrical conductivity, luster, and malleability, usually readily losing electrons to form positive ions.
- An atom that has gained or lost electrons, resulting in a net positive or negative charge
- A negative charge particle
- Number Number of protons in atoms nucleus
Down
- The tendency of a substance to undergo chemical reactions with other substances.
- The total mass of an atom, primarily determined by the number of protons and neutrons
- A characteristic of a substance that can be observed without changing its composition, such as color, density, or melting point.
- A substance with a consistent composition throughout, consisting of only one type of atom or molecule.
- Anything that takes up space and has mass
- Smallest unit of a element
- An element that lacks the characteristics of a metal, often poor conductor of electricity
- A positive charge particle
- A pure substance composed of only one type of atom, which cannot be broken down into simpler substances through chemical reactions
16 Clues: Smallest unit of a element • A positive charge particle • A negative charge particle • A neutrally charge particle • Anything that takes up space and has mass • Number Number of protons in atoms nucleus • An element that exhibits properties of both metals and nonmetals. • The tendency of a substance to undergo chemical reactions with other substances. • ...
Chemistry 2015-11-04
Across
- principle Lowest energy orbital
- quantum number Specify atomic orbital's sizes and energies
- radiation A wavelike behavior
- configuration The way electrons are ordered
- Short distance between points
- sublevel Contained with a principal energy level
- mechanical model of the atom Electrons are treated as waves
- electron Electrons outside an atom
- Number of waves that pass
Down
- emission spectrum Atom's electromagnetic wave frequencies
- Gamma rays use this
- effect When light shines on the surface at a certain frequency
- A wave's height
- uncertainty principle Not knowing velocity and position of a particle
- constant An equation "Jxs"
- orbital A three-dimensional region
- state Lowest energy of an atom
17 Clues: A wave's height • Gamma rays use this • Number of waves that pass • constant An equation "Jxs" • radiation A wavelike behavior • Short distance between points • state Lowest energy of an atom • principle Lowest energy orbital • orbital A three-dimensional region • electron Electrons outside an atom • configuration The way electrons are ordered • ...
Chemistry 2016-12-15
16 Clues: Atoms • Gases • Element • Nucleus • covalent • Negative • Chemical • absolute • tendency • Elements • electron • positive • Particles • UNIT formula • Pure substances • eight electrons
Chemistry 2017-03-14
Across
- composed of two or more parts, elements, or ingredients
- theory A scientific theory is an explanation of some aspect of the natural world that can, in accordance with the scientific method, be repeatedly tested, using a predefined protocol of observations and experiments
- an elementary particle having no charge, mass slightly greater than that of a proton
- any of a class of elementary substances, as gold, silver, or copper, all of which are crystalline when solid and many of which are characterized by opacity, ductility, conductivity, and a unique luster when freshly fractured.
- an element not having the character of a metal, as carbon or nitrogen.
- an elementary particle that is a fundamental constituent of matter
- The product of mixing
Down
- table a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.
- a positively charged elementary particle that is a fundamental constituent of all atomic nuclei. It is the lightest and most stable baryon, having a charge equal in magnitude to that of the electron.
- arrangement The distinction between states (Solid, Liquid, gas)
- the branch of knowledge that deals with the creation and use of technical means and their interrelation with life, society, and the environment, drawing upon such subjects as industrial arts, engineering, applied science, and pure science.
- a measure of the warmth or coldness of an object or substance with reference to some standard value
- a component or constituent of a whole or one of the parts into which a whole may be resolved by analysis
- something used for or regarded as representing something else; a material object representing something, often something immaterial; emblem, token, or sign.
- the substance or substances of which any physical object consists or is composed
- Reaction A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
16 Clues: The product of mixing • composed of two or more parts, elements, or ingredients • arrangement The distinction between states (Solid, Liquid, gas) • an elementary particle that is a fundamental constituent of matter • an element not having the character of a metal, as carbon or nitrogen. • ...
CHEMISTRY 2017-03-23
Across
- A long-chain molecule formed by the joining of many smaller and repeating molecules
- A small amount of active molecules (such as acid) in a solution
- A mixture of a solute dissolved in a chemical reaction
- A reaction that involves oxygen and releases light and heat energy
- A reaction in which an acid and base combine to produce a metal salt and water
- A small molecule from which polymers are made
- A substance that increases the rate of a reaction but is not used up in the reaction
- A molecule that only contains carbon and hydrogen atoms
Down
- THEORY A theory stating that the particles involved in a chemical reaction must collide in order to react
- An insoluble compound formed in a precipitation reaction
- A strong acid readily releases a hydrogen ion in a chemical reaction, can also be used to describe the bond between different atoms
- Process of joining of smaller units to form a long-chain molecule
- Object or substance that can be broken down by bacteria, fungi and other living organisms
- The breakdown is the separation of a chemical compound into elements or simpler compounds
- The number of active molecules in a set volume of solution
- A reaction that involves the building up of compounds by combining simpler substances, normally elements
16 Clues: A small molecule from which polymers are made • A mixture of a solute dissolved in a chemical reaction • A molecule that only contains carbon and hydrogen atoms • An insoluble compound formed in a precipitation reaction • The number of active molecules in a set volume of solution • A small amount of active molecules (such as acid) in a solution • ...
chemistry 2018-05-31
Across
- formed by the valence electrons moving freely through the metal lattice.
- bond together
- result
- 2 atoms held together by 1 pair of electrons
- 4 or 5 atoms around center of atom
- atoms of each element
- sharing 3 pairs of electrons
- precisely two elements
Down
- repulsion between electron pair causes molecular shapes
- 2 shared pairs electrons
- moles equal
- 4 atoms
- 2 or 3 atoms
- located in the outermost shell
- bond between 2 nonmetals
- undergoes a chemical change in a given reaction
16 Clues: result • 4 atoms • moles equal • 2 or 3 atoms • bond together • atoms of each element • precisely two elements • 2 shared pairs electrons • bond between 2 nonmetals • sharing 3 pairs of electrons • located in the outermost shell • 4 or 5 atoms around center of atom • 2 atoms held together by 1 pair of electrons • undergoes a chemical change in a given reaction • ...
Chemistry 2018-05-30
Across
- 2 Electrons
- 4 Electrons
- contains more dissolved solute than a saturated solution
- a compound composed of molecules
- substance being dissolved
- maximum amount of solute
Down
- 6 Electrons
- 2 liquids that mix together
- containing less solute that a saturated solution
- substance that can't be dissolved
- contains maximum amount of dissolved solute for a given amount
- substance can be dissolved
- substance doing the dissolving
- Molecular
- 2 liquids that are soluble
- 6.02x10^23
16 Clues: Molecular • 6.02x10^23 • 6 Electrons • 2 Electrons • 4 Electrons • maximum amount of solute • substance being dissolved • substance can be dissolved • 2 liquids that are soluble • 2 liquids that mix together • substance doing the dissolving • a compound composed of molecules • substance that can't be dissolved • containing less solute that a saturated solution • ...
Chemistry 2013-03-04
Across
- Is usually measured in mL
- The element that has no neutrons
- Mr. Nye's first name
- The common name for NaCl
- The only metal that is a liquid at room temperature
- Has properties of both metals and non-metals
- Type of change that doesn't involve formation of new substance
- The element with the symbol B
- The first word in WHMIS
- A vertical column on the periodic table
Down
- Water is this state of matter
- fluorine belongs to this family
- The element with 7 protons
- The noble gas in the third period
- A material's ability to be hammered into different shapes
- Glassware used to hold liquids
16 Clues: Mr. Nye's first name • The first word in WHMIS • The common name for NaCl • Is usually measured in mL • The element with 7 protons • Water is this state of matter • The element with the symbol B • Glassware used to hold liquids • fluorine belongs to this family • The element that has no neutrons • The noble gas in the third period • A vertical column on the periodic table • ...
CHEMISTRY 2015-02-28
Across
- A property of objects, transferable among them via fundamental interactions, which can be converted into different forms but not created or destroyed.
- A branch of physical science that studies the composition, structure, properties and change of matter.
- A subatomic particle, symbol p or p+, with a positive electric charge of +1e elementary charge and mass slightly less than that of a neutron.
- The basic unit of chemistry.
- Defined as anything that has rest mass and volume (it takes up space) and is made up of particles.
- a charged species, an atom or a molecule, that has lost or gained one or more electrons.
- A concept in chemistry that has different (but similar) meanings if referred to a single pure substance or a mixture.
- A subatomic particle, symbol e− or β−, with a negative elementary electric charge.
Down
- A subatomic particle, symbol n or n0, with no net electric charge and a mass slightly larger than that of a proton.
- an ion with fewer electrons than protons, giving it a positive charge.
- An ion with more electrons than protons, giving it a net negative charge.
- A tabular arrangement of the chemical elements, organized on the basis of their atomic number (number of protons in the nucleus), electron configurations, and recurring chemical properties.
- A pure chemical substance composed of more than one element.
- A homogeneous mixture composed of only one phase.
- An electrically neutral group of two or more atoms held together by chemical bonds.
- a column of elements in the periodic table of the chemical elements. (also known as a family)
16 Clues: The basic unit of chemistry. • A homogeneous mixture composed of only one phase. • A pure chemical substance composed of more than one element. • an ion with fewer electrons than protons, giving it a positive charge. • An ion with more electrons than protons, giving it a net negative charge. • ...
Chemistry 2021-01-05
Across
- A vertical column in the periodic table of the elements.Elements in a group have similar properties.
- An element that has properties of both metals and nonmetals
- A table of the elements, arranged by atomic number, that shows the patterns in their properties.
- An atom of one element that has a different number of neutrons than another atom of the same element.
- The number of protons in a nuclear of an atom.
- A particle that has no electric charge, and is located in an atom's nucleus.
- The central region of an atom where most of the atom's mass is found in a proton and neutron.
- an atom's nucleus
Down
- An element that is not a metal and has properties generally opposite to those of a metals.
- The length of time it takes for half of the atoms in a sample of a radioactive element to decay into atoms of another element.
- A horizontal row in the periodic table of the elements. Elements in a period have varying properties
- The total number of protons and neutrons
- A positively charged particle in an atom's nucleus.
- An element that tends to be shiny, easily shaped, and a good conductor or electricity and heat.
- An atom or group of atoms that has a positive or negative charge
- A negatively charged particle located outside an atom's nucleus. An Electron is about 2000 times smaller than either a proton and neutron.
16 Clues: an atom's nucleus • The total number of protons and neutrons • The number of protons in a nuclear of an atom. • A positively charged particle in an atom's nucleus. • An element that has properties of both metals and nonmetals • An atom or group of atoms that has a positive or negative charge • ...
Chemistry 2022-05-25
Across
- how many protons do lithium have
- who came up with atom structure
- what orbits the electron shell
- what atom has negative charge
- where rutherford was born
- who did the gold foil experiment
- which group does the alkali metals belong
- how many protons are there in berylium
- has proton and neutron
Down
- what atom has positive charge
- has 5 protons and the atomic number is 11
- how many protons does oxygen have
- how much atomic number have the sodium
- what is the first element of the periodic table
- what atom has neutral charge
- how many protons does hydrogen have
- how many electrons are there in atom of carbon
17 Clues: has proton and neutron • where rutherford was born • what atom has neutral charge • what atom has positive charge • what atom has negative charge • what orbits the electron shell • who came up with atom structure • how many protons do lithium have • who did the gold foil experiment • how many protons does oxygen have • how many protons does hydrogen have • ...
CHEMISTRY 2022-05-18
Across
- ice- solid co2
- process of changing liquid to gas
- point - point during heating when solid melts to form liquid
- - factor determining the state of the substance
- - process of chainging gas to liquid
- process of changing liqui
Down
- - intermixing of particles of two different kind
- causes on changing liquid to gas
- process of changing solid to gas
- causes cooling on changing liquid to gas
- process of changing gas to solid
- - IRON [fe] is element or compound
- energy - energy produced during movement of particles
- - temperature at which water is both in liquid and solid state
- - process of changing solid to gas
- heat - hidden heat
16 Clues: ice- solid co2 • heat - hidden heat • process of changing liqui • causes on changing liquid to gas • process of changing solid to gas • process of changing gas to solid • process of changing liquid to gas • - IRON [fe] is element or compound • - process of changing solid to gas • - process of chainging gas to liquid • causes cooling on changing liquid to gas • ...
Chemistry 2022-11-09
Across
- a column on the periodic table
- smallest particle of matter that retains characteristics of an element
- Water freezing (two words)
- atoms combine to make them
- positively charged particle in a nucleus
- two or more elements chemically combined
- characteristics or traits
- Determines if a substance is a solid or a liquid at room temperature (two words)
- particle orbiting the nucleus of an atom
- the amount of space an object occupies
Down
- new substance is formed (two words)
- Particle in atom with no charge
- a row on the periodic table
- matter that cannot be broken down into simpler substances
- the amount of matter in an object
- matter is not created or destroyed (three words)
16 Clues: characteristics or traits • Water freezing (two words) • atoms combine to make them • a row on the periodic table • a column on the periodic table • Particle in atom with no charge • the amount of matter in an object • new substance is formed (two words) • the amount of space an object occupies • positively charged particle in a nucleus • ...
Chemistry 2019-02-13
Across
- Water turning into ice
- Gives out heat
- Liquid goes to a gas
- Absorbs heat
- Ice turning into water
- An object getting larger
- Gas to liquid
- A diagram explaining particle theory
Down
- When clouds come back as rain
- Solid solute to a dissolves
- An object getting smaller
- Change the shape, form and state
- A solute and solvent mixed together
- Water at 100'C is _____
- Gas to a solid
- Soild to a gas
16 Clues: Absorbs heat • Gas to liquid • Gives out heat • Gas to a solid • Soild to a gas • Liquid goes to a gas • Water turning into ice • Ice turning into water • Water at 100'C is _____ • An object getting larger • An object getting smaller • Solid solute to a dissolves • When clouds come back as rain • Change the shape, form and state • A solute and solvent mixed together • ...
Chemistry 2019-11-11
Across
- a measurement clearly out of line with the trend
- a collision between particles that leads to a reaction
- a poor measurement (human error)
- a statement suggesting what will happen in the future
- the minimum amount of energy needed for a reaction to take place
- think about the method you used and how it could be improved
- the thing that you change
- the number of particles per unit volume
- the exterior of a solid that can react with other substances
Down
- problem with the apparatus
- the gap between the readings
- speeds up a chemical reaction by lowering the activation energy
- a collision between particles that doesn’t lead to a reaction
- the number of collisions taking place per unit time
- the amount of product formed or reactant used up over time
- the thing that you measure
16 Clues: the thing that you change • problem with the apparatus • the thing that you measure • the gap between the readings • a poor measurement (human error) • the number of particles per unit volume • a measurement clearly out of line with the trend • the number of collisions taking place per unit time • a statement suggesting what will happen in the future • ...
Chemistry 2026-02-23
Across
- Reaction where ions exchange partners
- Charged particle formed when electrons are gained or lost
- Scientist who developed the mole concept
- Standard temperature and pressure used in gas calculations
- Measure of average kinetic energy of particles
- Mass of one mole of a substance
- Representative particle of an ionic compound
- Negatively charged ion
- Reaction where two or more substances form one product
Down
- Mathematical relationship between reactants and products
- Reaction where a compound breaks apart into simpler substances
- Positively charged ion
- Unit used to measure amount of substance
- Smallest unit of an element
- Force exerted by gas particles on container walls
- Volume of matter that expands to fill its container
16 Clues: Positively charged ion • Negatively charged ion • Smallest unit of an element • Mass of one mole of a substance • Reaction where ions exchange partners • Unit used to measure amount of substance • Scientist who developed the mole concept • Representative particle of an ionic compound • Measure of average kinetic energy of particles • ...
School subjects 2021-10-15
Chemistry 2021-05-20
Across
- Table A table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure appear in vertical columns.
- A hard substance that is easily broken
- A subatomic particle of about the same mass as a proton but without an electric charge.
- A regular repeated three-dimensional arrangement of atoms, ions, or molecules in a metal or other crystalline solid.
- Characteristic
- A solid material which is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity
- Consisting of one atom.
Down
- Able to be hammered or pressed into shape without breaking or cracking.
- A stable subatomic particle with a positive electric charge
- The simplest substances and hence cannot be broken down using chemical reactions.
- The positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.
- Metal An element or substance that is not a metal.
- The smallest particle of a chemical element that can exist.
- A stable subatomic particle with a charge of negative electricity,
- Shiny
- Able to be drawn out into a thin wire.
16 Clues: Shiny • Characteristic • Consisting of one atom. • A hard substance that is easily broken • Able to be drawn out into a thin wire. • Metal An element or substance that is not a metal. • A stable subatomic particle with a positive electric charge • The smallest particle of a chemical element that can exist. • ...
Chemistry 2021-07-17
Across
- temperature favoring thermodynamic product
- dipeptide sweetener
- solvent fovouring kinetic product
- reduction of triple bond to trans olefine
- additive exciting nervous cells to death
- metal used in McMurry and Mukiyama reagent
Down
- gas for packaging integrity
- Benzophenone sodium solution in ether colour
- Additive to keep moist
- condensation of ester to diketone
- Nucleophile with soft and hard ends
- nitrogen in cyanide ion
- Catalyst in Grignard Reagent
- Banned whitening additive in bread
- metal in Wurtz reaction
- antibiotic in honey
16 Clues: dipeptide sweetener • antibiotic in honey • Additive to keep moist • nitrogen in cyanide ion • metal in Wurtz reaction • gas for packaging integrity • Catalyst in Grignard Reagent • condensation of ester to diketone • solvent fovouring kinetic product • Banned whitening additive in bread • Nucleophile with soft and hard ends • additive exciting nervous cells to death • ...
Chemistry 2022-06-21
Across
- State of matter. Attraction between particles holds them in a shape very strongly. Particles vibrate.
- Group/Family/Column on the Periodic Table. 7 valence electrons. Fluoride, Chlorine, Bromine, Iodine, Astatine.
- The symbol is Al on the periodic table
- Group/Family/Column on the Periodic Table. Very unreactive because it has full valence shells. Colourless gasses at room temperature.
- A table that lists the known elements in row (period) and columns (group/family).
- A particle (atom) with either a positive (Cation) or negative (Anion) charge.
Down
- Group/Family/Column on the Periodic Table. Shiny, soft, malleable, low melting point. One valence electron.
- First element of the periodic table and the Alkali Metals
- Anything that has mass and takes up space
- Number of protons
- A mix of multiple different metals
- Substance containing one type of particle. Two types: Element and compound.
- State of matter. Particles move a little, and take the shape of its container.
- State of matter. Particles move fast. Flow out of the container.
- Has an atomic number of 8 on the periodic table. Needed for breathing.
- Has an atomic mass of about 15.9994
16 Clues: Number of protons • A mix of multiple different metals • Has an atomic mass of about 15.9994 • The symbol is Al on the periodic table • Anything that has mass and takes up space • First element of the periodic table and the Alkali Metals • State of matter. Particles move fast. Flow out of the container. • ...
chemistry 2022-06-16
Across
- (of a reaction or process) accompanied by the release of heat.
- a gas that contributes to the greenhouse effect by absorbing infrared radiation, e.g., carbon dioxide and chlorofluorocarbons.
- a metal made by combining two or more metallic elements
- (of a reaction or process) accompanied by or requiring the absorption of heat.
- a substance used for destroying insects or other organisms harmful to cultivated plants or to animals.
- a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms
- a reaction where an acid reacts with an alkali to form a neutral solution of a salt and water
- the process of corroding metal, stone, or other materials.
- a substance that is toxic to plants, used to destroy unwanted vegetation.
- canada's national hazard communication standard
Down
- a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.
- a substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together
- a material or chemical, especially a textile fiber.
- a change apparent from the mid to late 20th century onwards and attributed largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.
- the process of burning something.
- an apparatus using water or a solution for purifying gases or vapors.
16 Clues: the process of burning something. • canada's national hazard communication standard • a material or chemical, especially a textile fiber. • a metal made by combining two or more metallic elements • the process of corroding metal, stone, or other materials. • (of a reaction or process) accompanied by the release of heat. • ...
chemistry 2022-06-14
Across
- man made substances
- substance considering of very large molecules
- a substance reacts rapidly with oxygen and gives off heat
- atmospheric emission purification
- gases gases that trap heat in the atmosphere and warm the planet
- acid+alkali-salt+water
- a substance used to kill,repel pests
- a reaction that gives off heat
Down
- change long term shifts in temperatures and weather patterns
- a substance made of 2 or more metals
- a spray known as weedkiller
- deposition any form of percipitation with acidic components
- a reaction that absorbs heat
- rust is an example of?
- reaction reaction where a new substance is formed
- workplace hazardous materials information system
16 Clues: man made substances • rust is an example of? • acid+alkali-salt+water • a spray known as weedkiller • a reaction that absorbs heat • a reaction that gives off heat • atmospheric emission purification • a substance made of 2 or more metals • a substance used to kill,repel pests • substance considering of very large molecules • workplace hazardous materials information system • ...
Chemistry 2022-11-16
Across
- capability of conducting heat
- properties, composition, and structure of elements and compounds, how they can change, and the energy that is released or absorbed when they change
- when one or more chemicals are changed into one or more other chemicals. Examples: iron and oxygen combining to make rust
- a substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape (unlike a solid) and no fixed volume (unlike a liquid).
- a sample of matter that conforms to the shape of a container
- paper a filter paper that has been treated with a lichen-provided natural-soluble dye
- change a change in the shape or appearance of an object, like crumpling a piece of paper
- the measure of the ease at which an electric charge or heat can pass through a material
- property a characteristic of matter that may be observed and measured without changing the chemical identity of a sample
Down
- anything that has mass and volume (takes up space)
- any change that causes a new substance to be formed (Campfire turns to ashes)
- the measurement of how tightly a material is packed together
- How much space an object or substance takes up.
- state of matter that retains its shape and density when not confined
- degree to which a substance dissolves in a solvent to make a solution
- property flammability, toxicity, acidity, reactivity (many types), and heat of combustion.
- a measure of the amount of matter in an object
17 Clues: capability of conducting heat • a measure of the amount of matter in an object • How much space an object or substance takes up. • anything that has mass and volume (takes up space) • the measurement of how tightly a material is packed together • a sample of matter that conforms to the shape of a container • ...
Chemistry 2017-03-02
Across
- Which metal can protect you from gamma radietion?
- What Chemistry can be?
- Which factor affects rate of a reaction?
- Molecules and atoms can form...
- A heavy toxic gas used in the II World War
- Used to accelerate a reaction
- Written to find out which and how many molecules/atoms a reaction contains
- Which type of bond do following substances have: iodine, water, chlorine, oxygen.
Down
- Number of lone electrons on the outer electron shell
- If some atoms have the same nuclear charge but their mass differs, they are...
- Which gas did Hindenburg rigid airship crashed in 1937 contained?
- Сrimson in alkalis
- Its ion produces red fire
- What structure can be in compounds?
- How many lone electrons does carbon have on its outer electron shell
- A paper used to check acidity of substances
16 Clues: Сrimson in alkalis • What Chemistry can be? • Its ion produces red fire • Used to accelerate a reaction • Molecules and atoms can form... • What structure can be in compounds? • Which factor affects rate of a reaction? • A heavy toxic gas used in the II World War • A paper used to check acidity of substances • Which metal can protect you from gamma radietion? • ...
Chemistry 2019-02-13
16 Clues: dew • erosion • shortening • solid to gas • heat release • water heating • liquid to gas • absorbing heat • getting bigger • liquid to solid • solid to liquid • change of state • solid liquid gas • form of moisture • a liquid mixture • net movement of molecules
Chemistry 2020-04-21
Across
- One or more substances dissolved in a solution
- Ion Ion that does not participate in a reaction
- Equation A statement using chemical formula prescribed the identities and relative amounts of reactants and products involved in a chemical reaction
- Reaction a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat or light
- Solution contains one or more substances called solutes dissolved in water
- A solid produced during a chemical reaction in a solution
- Reaction The process by which the atoms of one or more substances are rearranged to form different substances; occurrence can be indicated by changes in temp. color, odor, and physical state
- Replacement Reaction a chemical reaction that occurs when the atoms of one elements replaces the atoms of another element in a compound
- Replacement Reaction A chemical reaction that involves the exchange of ions between two compounds and produces either a precipitate, a gas or water
- The substance dissolves to form a solution; the most plentiful substance in the solution
Down
- Reaction a chemical reaction that occurs when a single compound breaks down into two or more elements or new compounds
- Reaction A chemical reaction in which two or more substances react to yield a single product
- the starting substance in a chemical reaction
- A substance formed during a chemical reaction
- Ionic Equation An ionic equation that shows all the particles in a solution as they realistically exist
- In a chemical reaction the number written in front of a reactant or product; in a balanced equation describes the lowest whole number ratio of the amounts of all reactants and products
- Equation An ionic equation that includes only particles that participate in the reaction
17 Clues: A substance formed during a chemical reaction • One or more substances dissolved in a solution • the starting substance in a chemical reaction • Ion Ion that does not participate in a reaction • A solid produced during a chemical reaction in a solution • Solution contains one or more substances called solutes dissolved in water • ...
chemistry 2021-10-04
Across
- change alters chemical properties
- solid, liquid or gaseous.
- part mixture of substances with two or more states
- state with definite volume but not shape.
- substances formed in a chemical reaction.
- present at the beginning of chemical reaction
- study of patterns of chemical behavior
- prop. of a substances
- prop cause behavior in chemical rctns
Down
- state with definite volume and shape
- a change in physical properties
- properties which can be measured
- used to start a chemical reaction, hydrochloric
- descriptive properties Smell taste
- state with no definite volume or shape.
- a substances that will flow(gas or liquid state)
16 Clues: prop. of a substances • solid, liquid or gaseous. • a change in physical properties • properties which can be measured • change alters chemical properties • descriptive properties Smell taste • state with definite volume and shape • prop cause behavior in chemical rctns • study of patterns of chemical behavior • state with no definite volume or shape. • ...
Chemistry 2021-03-04
Across
- - different substances not chemically joined that can be separated
- nitrate - salt made of sodium hydroxide and nitric acid
- dish - a dish for evaporating solutions
- - number on ph scale which represents strong alkali
- - element with symbol Fe
- - element with atomic number 20
- - number on ph scale which represents strong acid
- - columns on periodic table
Down
- - compound with chemical formula H2O
- - rows on periodic table
- - one type of atom
- - number on ph scale which represents neutral
- metals - group 1 on periodic table
- cylinder - apparatus used to measure liquid
- - two or more different elements chemically joined together
- burner - gas burner used for heating things
16 Clues: - one type of atom • - rows on periodic table • - element with symbol Fe • - columns on periodic table • - element with atomic number 20 • metals - group 1 on periodic table • - compound with chemical formula H2O • dish - a dish for evaporating solutions • cylinder - apparatus used to measure liquid • burner - gas burner used for heating things • ...
Chemistry 2021-03-04
Across
- the symbol for chromium
- element that has the symbol C
- a compound that is used daily
- 2 or more atoms held together by chemical bonds
- within the air
- 2 or more substances not chemically combined together
- one magnesium atom and two chlorine atoms
Down
- numbers on the left side of the periodic table
- the atomic number is 28
- numbers going across the top of the periodic table
- substance made entirely of one type of atom
- what is hydrogens atomic number
- amount of alkali metals on the periodic table
- group 7, period 2
- 2 or more different element held together by chemical bonds
- atomic mass for oxygen
16 Clues: within the air • group 7, period 2 • atomic mass for oxygen • the atomic number is 28 • the symbol for chromium • element that has the symbol C • a compound that is used daily • what is hydrogens atomic number • one magnesium atom and two chlorine atoms • substance made entirely of one type of atom • amount of alkali metals on the periodic table • ...
Chemistry 2021-04-05
Across
- A type of combustion carried out by all living things
- A substance that turns litmus paper red and tastes sour
- A substance that turns litmus paper blur and tastes bitter
- A chemical reaction that is caused when an acid and a base is mixed
- A reaction where two solutions combine to form a precipitate
- combustion A substance burning in less oxygen
- A metal reacting with oxygen
- A reaction that releases heat energy
- dioxide A gas that turns lime water milky and cloudy
Down
- Something that gives a visual sign of an acid/base
- Burning a substance in oxygen
- rain Precipitation with high level of nitric acid or sulphuric acid
- A reaction that absorbs heat energy
- A gas that is tested by a pop test
- A fundamental and basic building block of matter
- A gas that is tested by bringing a glowing splint in front of a test tube and it starts burning
- reaction Substances react to form new substances by rearranging atoms
17 Clues: A metal reacting with oxygen • Burning a substance in oxygen • A gas that is tested by a pop test • A reaction that absorbs heat energy • A reaction that releases heat energy • combustion A substance burning in less oxygen • A fundamental and basic building block of matter • Something that gives a visual sign of an acid/base • ...
chemistry 2021-05-16
Across
- the basic units of matter and defines structure of element
- the process of turning liquid into vapor
- when a gas turns into a liquid
- a substance that can be dissolved by a solvent to create a solution
- the substance in which the solute is dissolved
- the separation of solid mixtures from liquid allowing only the liquid to pass through
- a substance or object that is not liquid or gas
- a metal that attracts other kinds of metals
Down
- a small adjustable gas heater object that is used as heat in labs
- 2 or more substances mixed together
- used to separate solids from liquids by straining it
- becoming liquefied by heat
- the action of cleaning by heating and cooling a substance
- having no fixed shape and no fixed volume
- a liquid mixture in which the solute is equally distributed within the solvent
- a substance that flows freely but is of constant volume
16 Clues: becoming liquefied by heat • when a gas turns into a liquid • 2 or more substances mixed together • the process of turning liquid into vapor • having no fixed shape and no fixed volume • a metal that attracts other kinds of metals • the substance in which the solute is dissolved • a substance or object that is not liquid or gas • ...
Chemistry 2013-10-01
Across
- the element on the periodic table with the atomic number 6
- type of property that describes how a substance interacts with something else
- allows heat and electricity to flow through it
- positively charged particle in an atom
- two or more atoms joined together
- the elements along the 'staircase' of the periodic table
- this number tells you the number of protons in an atom
- every substance found around you
- where the protons and neutrons are found in the atom
Down
- made up of two or more different types of atoms
- name of the table that organizes all of the elements
- the group of the periodic table full of non-reactive gases
- dull, brittle, and non-conductive element
- describes what a substance looks like
- negatively charged particle in an atom
- the element with the atomic number 11
16 Clues: every substance found around you • two or more atoms joined together • describes what a substance looks like • the element with the atomic number 11 • positively charged particle in an atom • negatively charged particle in an atom • dull, brittle, and non-conductive element • allows heat and electricity to flow through it • made up of two or more different types of atoms • ...
Chemistry 2015-05-14
Across
- of 2 or more simple substances
- The part of the solution that is smaller
- a combination of different substances
- contains two or more different atoms joined
- atoms of an element that have lost or gained electrons
- reaction of an element with a compound that
Down
- a well mixed mixtures
- needs three things to work
- something that has a positive ion
- part of the solution
- a new element and new compound.
- Atoms of the same element with different numbers of neutrons.
- reaction of 2 compounds
- Breaking down large, complex molecules
- the ions that make it an atom
- something on the periodic table
16 Clues: part of the solution • a well mixed mixtures • reaction of 2 compounds • needs three things to work • the ions that make it an atom • of 2 or more simple substances • a new element and new compound. • something on the periodic table • something that has a positive ion • a combination of different substances • Breaking down large, complex molecules • ...
chemistry 2017-03-01
Across
- The basic unit of a chemical element.
- A pleasant-smelling colorless volatile liquid that is highly flammable.
- A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
- A chemical bond in which two pairs of electrons are shared between two atoms.
- A stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
- A colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.
- Below 0°C.
- Ascertain the amount of a constituent in (a solution) by measuring the volume of a known concentration of reagent required to complete a reaction with it, typically using an indicator.
- A substance that has no fixed shape and yields easily to external pressure; a gas or (especially) a liquid.
Down
- An electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials opaque to light.
- A solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity
- Great chemist
- A colorless, volatile, sweet-smelling liquid that makes people sleep
- The action of bringing a liquid to the temperature at which it bubbles and turns to vapour
- A compound that, when dissolved in water, gives a pH of less than 7.0 or a compound that donates a hydrogen ion
- An airlike fluid substance which expands freely to fill any space available, irrespective of its quantity.
16 Clues: Below 0°C. • Great chemist • The basic unit of a chemical element. • A colorless, volatile, sweet-smelling liquid that makes people sleep • A pleasant-smelling colorless volatile liquid that is highly flammable. • A chemical bond in which two pairs of electrons are shared between two atoms. • ...
Chemistry 2018-06-01
Across
- the energy required to remove an electron from a gaseous atom or ion.
- the measure of an atom's ion in a crystal lattice. It is half the distance between two ions that are barely touching each other.
- set of chemical symbols showing the elements present in a compound and their relative proportions, and in some cases the structure of the compound
- The chemical bonding that holds the atoms of a metal together.
- Two shared pairs
- acronym for Valence Shell Electron Pair Repulsion theory.
- solution A solution with solute that dissolves until it is unable to dissolve anymore, leaving the undissolved substances at the bottom.
- Amount of a substance (called the solute) that dissolves in a unit volume of a liquid substance (called the solvent) to form a saturated solution under specified conditions of temperature and pressure.
Down
- a type of chemical bond involving the sharing of electrons between atoms in a molecule, esp the sharing of a pair of electrons by two adjacent atoms.
- solution a state of a solution that contains more of the dissolved material than could be dissolved by the solvent under normal circumstances
- three shared pairs
- One pair of shared electrons
- a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding cloud of electrons.
- formula is useful tool for determining the precision of your calculations. ... The experimental value is your calculated value, and the theoretical value is your known value.
- solution a solution in which no more solute can be dissolved in the solvent.
- a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
16 Clues: Two shared pairs • three shared pairs • One pair of shared electrons • acronym for Valence Shell Electron Pair Repulsion theory. • The chemical bonding that holds the atoms of a metal together. • the energy required to remove an electron from a gaseous atom or ion. • solution a solution in which no more solute can be dissolved in the solvent. • ...
Chemistry 2022-01-15
Across
- carbon
- everything
- chemical property
- Ketchup
- physical property
- Substances that cannot be decomposed into simpler substances through ordinary chemical processes
- all the elements
- a charge of negative electricity,
- building block for matter
Down
- introducing the atomic theory into
- oxygen
- iron
- Atomic boom
- created the lightbulb
- the branch of science
- hydrogen is in a bottle and u put a splint of fire in it
16 Clues: iron • oxygen • carbon • Ketchup • everything • Atomic boom • all the elements • chemical property • physical property • created the lightbulb • the branch of science • building block for matter • a charge of negative electricity, • introducing the atomic theory into • hydrogen is in a bottle and u put a splint of fire in it • ...
chemistry 2022-04-15
Across
- is the oxidation number of nitrogen in nitric acid.
- is the oxidation number of oxygen in hydrogen peroxide
- produce hydroxide ions in water.
- are bases that have group one metals.
- has 3 nitrogen atoms
- is the anion of phosphoric acid.
- is needed in the compound with none_metals.
- the anion of sulfuric acid.
Down
- are made from a metal cation and acid anion.
- are acids that are ionized completely in water.
- has the same number of sulfur and iron atoms.
- the anion of Nitric acid.
- is one of the products of the reaction between sulphuric acid and sodium.
- produce hydrogen ions in water.
- are made from oxygen atom(s) and another atom.
- numbers are needed in the name of compounds with transition metals.
- Iron(III)nitrate has three Iron atoms.
17 Clues: has 3 nitrogen atoms • the anion of Nitric acid. • the anion of sulfuric acid. • produce hydrogen ions in water. • produce hydroxide ions in water. • is the anion of phosphoric acid. • are bases that have group one metals. • Iron(III)nitrate has three Iron atoms. • is needed in the compound with none_metals. • are made from a metal cation and acid anion. • ...
chemistry 2023-12-05
Across
- - a negative charged ion
- -SI unit measuring amount of substance
- number-number of protons in an atom
- center of an atom
- smallest particle of an element
- - subatomic particles that make up an atom
- subatomic particle with a positive charge
- formed by two or more elements
Down
- of solid forming into gas
- atomic number of carbon
- substance which cannot be broken down
- what is the chemical element name for Na
- - outermost shell of an atom
- chemical symbol for water
- - type of bond shared between atoms
- a physical substance
16 Clues: center of an atom • a physical substance • atomic number of carbon • - a negative charged ion • of solid forming into gas • chemical symbol for water • - outermost shell of an atom • formed by two or more elements • smallest particle of an element • number-number of protons in an atom • - type of bond shared between atoms • substance which cannot be broken down • ...
chemistry 2024-04-03
Across
- I am a stable element with 18 protons
- I have a mass less than 1 amu
- I have 7 protons
- I have 6 valence electrons and 3 shells
- this subatomic particle is located outside nucleus
- makes up most of the mass in an atom
- I am stable despite not having 8 valenece electrons
Down
- charge of a proton
- I am a metaloid with same shells as carbon
- I have 10 protons
- charge of a neutron
- I have 6 valence electrons and 2 shells
- I determine the identity of an elements atom
- I have 2 valence electrons and 3 shells
- I react similar to Sodium but I have less protons
- charge of an electron
- I also have a mass of 1 amu
17 Clues: I have 7 protons • I have 10 protons • charge of a proton • charge of a neutron • charge of an electron • I also have a mass of 1 amu • I have a mass less than 1 amu • makes up most of the mass in an atom • I am a stable element with 18 protons • I have 6 valence electrons and 2 shells • I have 2 valence electrons and 3 shells • I have 6 valence electrons and 3 shells • ...
Chemistry 2024-05-06
Across
- base unit for time
- a combination of base units
- how close a series of measurements are to one another
- a defined unit in a system of measurements
- base unit for temperature
- amount of mass per volume unit
- commonly used to measure liquid substances
- how close a measured value is to an actual value
- difference between experimental value and accepted value
Down
- a systematic approach to a problem solving
- base unit for mass
- include all known digits plus one estimated digit
- base unit for length
- expresses error as a percentage
- a ratio of equivalent values having different units
- a visual display of data
16 Clues: base unit for time • base unit for mass • base unit for length • a visual display of data • base unit for temperature • a combination of base units • amount of mass per volume unit • expresses error as a percentage • a systematic approach to a problem solving • a defined unit in a system of measurements • commonly used to measure liquid substances • ...
Chemistry! 2024-05-13
Across
- A chemical _________ is like the recipe, telling how many of each atom is in a molecule
- Ni
- Co
- When this kind of change occurs, at least one new substance is formed
- The small number that follows an element symbol, telling how many atoms there are in that molecule
- two or more atoms bonded together
- He
- More than one substance like trail mix or all the dry ingredients of a cake
- building blocks of all matter or smallest piece of one element
Down
- Li
- Be
- Mg
- A mixture where one substance is completely dissolved into a liquid
- The number in front of a chemical formula that tells you how many molecules there are
- Properties like color, phase, or shape that describe the appearance of an element or molecule
- all the atoms of a substance are the same
16 Clues: Li • Be • Mg • Ni • Co • He • two or more atoms bonded together • all the atoms of a substance are the same • building blocks of all matter or smallest piece of one element • A mixture where one substance is completely dissolved into a liquid • When this kind of change occurs, at least one new substance is formed • ...
Chemistry 2024-05-13
CHEMISTRY 2025-04-01
Across
- KOH & sodalime absorb _.(CO2)
- hydrogen is highly _ in nature (INFLAMMABLE)
- biodesel is _ in nature.(GUMMY)
- which type of fuel is use in bomb calorimeter.(SOLID)
- ethanol can be regenerated that is it is _.(RENEWABLE)
- %fixed moisture should be more as it _ CV.(INCREASE)
- surcose is obtain from _ .(MOLASSES)
Down
- transesterification of veg.oil/animal fat with _ using Na/NaoH catalyst.(METHANOL)
- %moisture should be less as it _ CV.(DECREASE)
- decarborisation of hydrogen gas in steel cylinder makes steel _ .(BRITTLE)
- glucose or fructose is treated with _ from yeast to produce ethanol.(ZYMASE)
- glycerol is _ colured liquid.(YELLOW)
- _is combustible matter which burns in presenc of oxygen to give huge amount of heat energy. (FUEL)
- power alcohol is mixture of petrol & 5 to 25% _.(METHANOL)
- which type of fuel is use in boys calorimeter.(GASES)
- dry ethanol is costly as it as 35% _ power output.(LESS)
16 Clues: KOH & sodalime absorb _.(CO2) • biodesel is _ in nature.(GUMMY) • surcose is obtain from _ .(MOLASSES) • glycerol is _ colured liquid.(YELLOW) • hydrogen is highly _ in nature (INFLAMMABLE) • %moisture should be less as it _ CV.(DECREASE) • %fixed moisture should be more as it _ CV.(INCREASE) • which type of fuel is use in bomb calorimeter.(SOLID) • ...
Chemistry 2025-04-16
Across
- A substance containing a single atom
- Water in gas form
- The organisation system of the elements
- The process of a solid becoming a gas
- An element used in creating colourful signs
- The process of liquid becoming a gas
- The process of a gas becoming liquid
Down
- The process of a gas becoming a solid
- A substance containing 3 or more atoms
- The state of matter that turns into the shape of it's container
- A state of matter that has the highest amount of energy
- The process of a liquid becoming a solid
- A substance containing 2 atoms
- Water in solid form
- A state of matter that keeps it's form The process of gas going into the atmosphere
- The process of a solid becoming a liquid
16 Clues: Water in gas form • Water in solid form • A substance containing 2 atoms • A substance containing a single atom • The process of liquid becoming a gas • The process of a gas becoming liquid • The process of a gas becoming a solid • The process of a solid becoming a gas • A substance containing 3 or more atoms • The organisation system of the elements • ...
Chemistry 2024-11-11
Across
- Gaining of electrons
- Substance that doesn't conduct electricity
- Double replacement reaction driven by formation of a precipitate
- moles of solute/liters of solute
- Acid that produces H+ ions in water
- Substance that causes oxidation
- Reaction in which the same element is oxidized and reduced
- Substance that causes reduction
Down
- Base that produces OH- in water
- Base that donates a pair of electrons
- Alkali metal ions, ammonium, acetates, bicarbonates, chlorates, perchlorates
- Substance that conducts electricity
- Acid that accepts a pair of electrons
- Base that is a proton accepter
- Acid that is a proton donor
- Loss of electrons
16 Clues: Loss of electrons • Gaining of electrons • Acid that is a proton donor • Base that is a proton accepter • Base that produces OH- in water • Substance that causes oxidation • Substance that causes reduction • moles of solute/liters of solute • Substance that conducts electricity • Acid that produces H+ ions in water • Base that donates a pair of electrons • ...
Chemistry 2026-02-09
Across
- Anything that takes up space is involved with -----
- What never changes in a solid
- What is the chemical compound for water?
- A word use to describe objects that emit a high amount of radiation.
- Cylinder What is the object used to measure how much liquid is inside of something?
Down
- Which form of element has the most spread out molecules
- The chemical compound for Iron is ------
- What shape is used to memorize the three equations to calculate density?
- What is the object used to measure how much weight one object has?
- The study of elements, compounds and part of science
- Before performing an experiment, ------ comes first.
- Which form of element are tightly packed together
- What is the word used to measure how much gravity is on a certain object?
- Table What is the diagram used to show chemical compounds?
- Na
- What is Mass divided by volume?
16 Clues: Na • What never changes in a solid • What is Mass divided by volume? • The chemical compound for Iron is ------ • What is the chemical compound for water? • Which form of element are tightly packed together • Anything that takes up space is involved with ----- • The study of elements, compounds and part of science • Before performing an experiment, ------ comes first. • ...
Green chemistry 2017-10-19
Across
- group of atoms
- drug wich can be manufactured by green chemistry
- a solution that has water as solvent
- product we use to create a chemical reaction
- thanks to catalyst it create less of this
- process of making pressure in a liquid and then making liquid evaporate at lower temperature
- particule made of electron(s) proton(s) and neutron(s)
- object making a faster reaction at lower temperature0
Down
- the result of the chemical reaction
- liquid use to detect carbon dioxide
- major problem of the earth because of the humans
- first state of matter at lower temperature
- solid product of a chemical reaction
- cloth we have to wear during a chemistry experiment
- something everywere in what we eat, what we wear, what we breathe
15 Clues: group of atoms • the result of the chemical reaction • liquid use to detect carbon dioxide • solid product of a chemical reaction • a solution that has water as solvent • thanks to catalyst it create less of this • first state of matter at lower temperature • product we use to create a chemical reaction • major problem of the earth because of the humans • ...
Chemistry 2019-03-05
Across
- It is used to describe the bonding that is obtained by taking combinations of the atomic orbitals.
- Energy charge for adding electrons to a neutral atom to form a negative ion.
- A measure of the degree of seperation in a molecule.
- The minimum amount of energy needed to remove the highest energy electron.
- A bond that forms when a half filled orbital fills the same region of space as an orbital on the atom.
- General shape of the molecule determined by the position of the nuclei.
- A measure of the ability of an atom in a molecule to draw bonding electrons to itself.
- What is the steric number for H2O? (draw lewis structure)
- Number of atoms + lone pairs bonded.
- The size of the atom and increases as you go down in a group and across to the right in a period
Down
- What is the molecular geometry of NF3? (draw lewis structure)
- How many sigma bonds are there in HCN? (draw lewis structure)
- How many valence electrons are there in CO2? (draw lewis structure)
- unstable anions
- Same chemical formula different structure.
- Can draw multiple lewis structures
16 Clues: unstable anions • Can draw multiple lewis structures • Number of atoms + lone pairs bonded. • Same chemical formula different structure. • A measure of the degree of seperation in a molecule. • What is the steric number for H2O? (draw lewis structure) • What is the molecular geometry of NF3? (draw lewis structure) • ...
Chemistry 2021-10-22
Chemistry 2022-04-01
Across
- containing the maximum amount of solute capable of being dissolved under given conditions
- a liquid mixture
- mixture of two or more liquids in which one is present as droplets, of microscopic size, distributed throughout the other
- capable of being mixed
- metallic substance composed of two or more elements, as either a compound or a solution.
- the substance that dissolves in a solvent to produce a homogeneous mixture
- effect scattering of a beam of light by a medium containing small suspended particles
- incapable of mixing or attaining homogeneity
Down
- a mixture consisting of two or more different substances
- is the measure of how much of a given substance there is mixed with another substance
- a colloidal system in which particles are gas bubbles and the medium is a liquid
- a system of liquid or solid particles uniformly distributed in a finely divided a gas, usually
- a liquid or other substance in which solid particles are mixed but not dissolved
- is like not saturated
- substance that conducts electric current as a result of dissociation into positively and negatively charged particles called ions
- any substances consisting of particles substantially larger than atoms or ordinary molecules but to small to be visible to the eye
16 Clues: a liquid mixture • is like not saturated • capable of being mixed • incapable of mixing or attaining homogeneity • a mixture consisting of two or more different substances • the substance that dissolves in a solvent to produce a homogeneous mixture • a colloidal system in which particles are gas bubbles and the medium is a liquid • ...
Chemistry 2013-04-10
Across
- Is a mixture from which particles settle out upon standing
- Is any substance that interferes with the hydrogen bonding between water molecules and thereby reduces surface tension
- A solution that conducts electricity poorly because only a fraction of the solute exists as ions
- The process by which the positive and negative ions of an ionic solid become surrounded by solvent molecules
- A solution in which a large portion of the solute exists as ions
- Is a heterogeneous misture containing particles that range in size from 1nm to 100nm
- A compound that contains water of hydration
- Is a colloidal dispersion of liquid in a liquid
Down
- The scattering of visible light by colloidal particles
- The dissolving medium
- The inward force, or pull, that tends to minimize the surface area of a liquid
- Is water that contains dissolved substances
- A compound that does not conduct an electric current in either aqueous solution or the molten state
- The dissolved particles
- Is caused by collision of the molecules of the dispersion medium with the small, dispersed colloidal particles
- Is a compound that conducts an electric current when it is in an aqueous solution or in the molten state.
16 Clues: The dissolving medium • The dissolved particles • Is water that contains dissolved substances • A compound that contains water of hydration • Is a colloidal dispersion of liquid in a liquid • The scattering of visible light by colloidal particles • Is a mixture from which particles settle out upon standing • ...
chemistry 2022-04-15
Across
- is one of the products of the reaction between sulphuric acid and sodium.
- is needed in the compound with nonemetals.
- has the same number of sulfur and iron atoms.
- produce hydrogen ions in water.
- produce hydroxide ions in water.
- is the anion of phosphoric acid.
- is the oxidation number of oxygen in hydrogen peroxide
- are made from a metal cation and acid anion.
- numbers are needed in the name of compounds with transition metals.
Down
- the anion of Nitric acid.
- has 3 nitrogen atoms
- Iron(III)nitrate has three Iron atoms.
- the anion of sulfuric acid.
- are made from oxygen atom(s) and another atom.
- are acids that are ionized completely in water.
- is the oxidation number of nitrogen in nitric acid.
- are bases that have group one metals.
17 Clues: has 3 nitrogen atoms • the anion of Nitric acid. • the anion of sulfuric acid. • produce hydrogen ions in water. • produce hydroxide ions in water. • is the anion of phosphoric acid. • are bases that have group one metals. • Iron(III)nitrate has three Iron atoms. • is needed in the compound with nonemetals. • are made from a metal cation and acid anion. • ...
chemistry 2022-04-15
Across
- produce hydroxide ions in water.
- are made from oxygen atom(s) and another atom.
- has 3 nitrogen atoms
- has the same number of sulfur and iron atoms.
- are made from a metal cation and acid anion.
- is the oxidation number of nitrogen in nitric acid.
Down
- the anion of Nitric acid.
- is one of the products of the reaction between sulphuric acid and sodium.
- are acids that are ionized completely in water.
- is the anion of phosphoric acid.
- is the oxidation number of oxygen in hydrogen peroxide
- numbers are needed in the name of compounds with transition metals.
- are bases that have group one metals.
- the anion of sulfuric acid.
- produce hydrogen ions in water.
- is needed in the compound with nonemetals.
- Iron(III)nitrate has three Iron atoms.
17 Clues: has 3 nitrogen atoms • the anion of Nitric acid. • the anion of sulfuric acid. • produce hydrogen ions in water. • produce hydroxide ions in water. • is the anion of phosphoric acid. • are bases that have group one metals. • Iron(III)nitrate has three Iron atoms. • is needed in the compound with nonemetals. • are made from a metal cation and acid anion. • ...
chemistry 2023-04-11
Across
- group 1 of the periodic table
- when something lowers in temperature
- when 2 things combine or split
- element replaces metal in a compound
- 1 compound breaks down into 2 elements
- group 17 of the periodic table
- stuff right of the yield sign
- group 18 of the perodic table
Down
- when something rises in temperature
- group 2 of the periodic table
- 2 compounds swap metals
- always makes co2 and water
- h2 n2 o2 f2 cl2 br2 I2
- 2 elements combined into 1 compound
- stuff left of the yield sign
- sign in between reactants and products
16 Clues: h2 n2 o2 f2 cl2 br2 I2 • 2 compounds swap metals • always makes co2 and water • stuff left of the yield sign • group 2 of the periodic table • group 1 of the periodic table • stuff right of the yield sign • group 18 of the perodic table • when 2 things combine or split • group 17 of the periodic table • when something rises in temperature • 2 elements combined into 1 compound • ...
Chemistry 2021-01-13
Across
- something carrying a net electrical charge
- anion that contains more than one atom
- level of reactivity of a metal
- a chemical element that mostly lacks the characteristics of a metal
- a chemical link between two atoms or ions in which the electron pairs are shared
- unit chemical formula with the least number of elements out of the set of empirical formulas having the same proportion of ions as elements
- chemical element that exhibits some properties of both metals and nonmetals
- The electrical charge of an ion, created by gain or loss of one or more electrons from an atom
Down
- a positively charged ion
- a chemical formula showing the simplest ratio of elements rather than the total number of atoms in a molecule
- particle made of two or more atoms that are chemically bonded
- substance with high electrical conductivity, luster and malleability
- consisting of one atom
- exhibiting neither acid or alkaline qualities
- a particle made up of two or more atoms that are chemically bonded together
- a negatively charged ion
16 Clues: consisting of one atom • a positively charged ion • a negatively charged ion • level of reactivity of a metal • anion that contains more than one atom • something carrying a net electrical charge • exhibiting neither acid or alkaline qualities • particle made of two or more atoms that are chemically bonded • ...
Chemistry 2021-07-17
Across
- Temperature favoring thermodynamic product
- Dipeptide sweetener
- Solvent fovouring kinetic product
- Reduction of triple bond to trans olefine
- Additive exciting nervous cells to death
- Metal used in McMurry and Mukiyama reagent
Down
- Gas for packaging integrity
- Benzophenone sodium solution in ether colour
- Additive to keep moist
- Condensation of ester to diketone
- Nucleophile with soft and hard ends
- Nitrogen in cyanide ion
- Catalyst in Grignard Reagent
- Banned whitening additive in bread
- Metal in Wurtz reaction
- Antibiotic in honey
16 Clues: Dipeptide sweetener • Antibiotic in honey • Additive to keep moist • Nitrogen in cyanide ion • Metal in Wurtz reaction • Gas for packaging integrity • Catalyst in Grignard Reagent • Condensation of ester to diketone • Solvent fovouring kinetic product • Banned whitening additive in bread • Nucleophile with soft and hard ends • Additive exciting nervous cells to death • ...
Chemistry 2022-06-22
Across
- a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products
- made when two or more substances are combined, but they are not combined chemically
- the basic unit of a chemical element
- a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
- a mixture in which the composition is not uniform throughout the mixture
- process involving the conversion of a liquid into vapour that is subsequently condensed back to liquid form
- a homogeneous mixture of one or more solutes dissolved in a solvent.
- Is the scientific study of the structure of substances and of the way that they react with other substances
- a negatively charged subatomic particle
Down
- the process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles
- any atom or group of atoms that bears one or more positive or negative electrical charges
- physical substance in general
- a substance that results from a combination of two or more different chemical elements
- a mixture in which the composition is uniform throughout the mixture
- neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen
- the process by which a liquid turns into a gas
16 Clues: physical substance in general • the basic unit of a chemical element • a negatively charged subatomic particle • the process by which a liquid turns into a gas • a mixture in which the composition is uniform throughout the mixture • a homogeneous mixture of one or more solutes dissolved in a solvent. • ...
CHEMISTRY 2016-10-06
Across
- One of two or more forms of a chemical element (with same # of protons and same atomic # but different # of neutrons or different atomic weights)
- The smallest particle of a substance; a tiny bit
- A person or thing that precipitates an event or change
- To congeal; to solidify, set, gel; to thicken; to curdle; to clot
- To cause to take up or combine chemically with water
- Process of eating or wearing away gradually usually by chemical action
- Tending to wear off or down by scraping or rubbing; inclined to annoy or irritate
- Tending or threatening to break into open violence; liable to sudden changes
Down
- The act of combining or blending into a whole
- An action in response to some influence, event etc.
- Capable or susceptible of being liquefied or emulsified
- To make thinner or weaker by the addition of more liquid
- Resistant to treatment; unresponsive to stimulus; difficult to fuse, corrode or draw out; especially capable of enduring high temperatures
- To soak thoroughly or completely; to load, fill or charge to the utmost
- An agent or substance that slows, interferes or stops a chemical action
- A complex made up of parts or elements put together
16 Clues: The act of combining or blending into a whole • The smallest particle of a substance; a tiny bit • An action in response to some influence, event etc. • A complex made up of parts or elements put together • To cause to take up or combine chemically with water • A person or thing that precipitates an event or change • ...
Chemistry 2016-12-15
Across
- physical substance in general
- a stable subatomic particle occurring in all atomic nuclei
- a group of atoms bonded together
- the basic unit of a chemical element
- A chemical bond formed between two ions with opposite charges
- elating to, measuring, or measured by the quantity of something rather than its quality
- consisting of parts all of the same kind
Down
- found in all atoms and acting as the primary carrier of electricity in solids
- relating to, measuring, or measured by the quality of something rather than its quantity
- chemical bond that involves the sharing of electron pairs between atoms
- a part or aspect of something abstract
- a thing that is composed of two or more separate elements; a mixture
- a substance made by mixing other substances together
- mass of an atom of a chemical element expressed in atomic mass units
- a subatomic particle of about the same mass as a proton
- unit the empirical formula of any ionic or covalent network
16 Clues: physical substance in general • a group of atoms bonded together • the basic unit of a chemical element • a part or aspect of something abstract • consisting of parts all of the same kind • a substance made by mixing other substances together • a subatomic particle of about the same mass as a proton • a stable subatomic particle occurring in all atomic nuclei • ...
chemistry 2016-11-30
Across
- A nitrogen atom bonded to a carbonyl carbon
- A functional group consisting of a double bond between carbon atoms
- The carbonyl carbon is bonded to at least one hydrogen atom.
- You add water to separate a large molecule into several smaller components.
- This compound has the highest hydrogen to carbon ratio. possible.
- Exothermic reaction, one of the reactants is molecular oxygen.
- Changes an unsaturated compound into a saturated compound.
- A molecular compound that contains a carbon atom.
- Made up of many repeating units.
Down
- The carbonyl carbon is bonded to to carbon atoms.
- A functional group consisting of a triple bond between carbon atoms
- A saturated hydrocarbon
- You lose water as you combine several small molecules into a single large molecule.
- A polymer of many amino acids.
- Organic compound made up of only hydrogen and carbon atoms
- A nitrogen atom bonded to a carbon atom
16 Clues: A saturated hydrocarbon • A polymer of many amino acids. • Made up of many repeating units. • A nitrogen atom bonded to a carbon atom • A nitrogen atom bonded to a carbonyl carbon • The carbonyl carbon is bonded to to carbon atoms. • A molecular compound that contains a carbon atom. • Organic compound made up of only hydrogen and carbon atoms • ...
Chemistry 2018-02-05
Across
- / made of two or more different atoms
- mass / average mass of the types of an atom
- / negatively charged atoms
- levels / the orbit electrons flow
- change / chemical properties changed forming a new substance
- / positively charged atoms
- / Two or more substances that are physically combined
- / Made of the same type of atom
- / organized by energy levels
Down
- change / size and shape change not chemical properties
- / neutrally charged atoms
- / Anything with 2 or more atoms
- number / Amount of protons and neutrons
- / organized by valance electrons
- electrons / outside electrons. Determine chemical properties
- / Anything that has mass and volume
16 Clues: / neutrally charged atoms • / negatively charged atoms • / positively charged atoms • / organized by energy levels • / Anything with 2 or more atoms • / Made of the same type of atom • / organized by valance electrons • levels / the orbit electrons flow • / Anything that has mass and volume • / made of two or more different atoms • number / Amount of protons and neutrons • ...
chemistry 2018-05-31
Across
- a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
- (of a substance) able to be dissolved, especially in water
- diverse in character or content
- a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red; typically, a corrosive or sour-tasting liquid of this kind.Often contrasted with alkali and base
- error The measured value can also be called the experimental, estimated, or actual value.
- a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
- solution containing the maximum concentration of a solute dissolved in the solvent.
Down
- a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
- ratio between the amounts in moles of any two compounds involved in a chemical reaction.
- property any property of matter or energy or interactions that can be measured.
- change usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances
- solution is one that is able to have solvents added or removed
- a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained
- of the same kind; alike
- solution that contains a higher than saturation concentration of solute; slight disturbance or seeding causes crystallization of excess solute.
- the third letter of the Greek alphabet (Γ, γ), transliterated as ‘g.’
16 Clues: of the same kind; alike • diverse in character or content • (of a substance) able to be dissolved, especially in water • solution is one that is able to have solvents added or removed • the third letter of the Greek alphabet (Γ, γ), transliterated as ‘g.’ • property any property of matter or energy or interactions that can be measured. • ...
Chemistry 2024-05-13
Chemistry 2024-02-29
Across
- when the shape size or phase of a substance changes
- pure substance made of only one kind of atom
- the smallest amount of a substance you can have
- a chart where elements are arranged in order of atomic number
- two or more elements chemically combined
- particle with a neutral charge found in the nucleus of an atom
- anything that has mass and takes up space
- two or more substances combined but easily separated
Down
- states that matter cannot be created or destroyed
- a mixture where you are able to see the individual parts
- when a completely new substance is formed
- a chemical reaction where iron combines with oxygen in moist environments
- negatively charged particles found outside the nucleus
- the smallest amount of matter
- a mixture that looks the same throughout
- positively charged particle in the nucleus of an atom
16 Clues: the smallest amount of matter • a mixture that looks the same throughout • two or more elements chemically combined • when a completely new substance is formed • anything that has mass and takes up space • pure substance made of only one kind of atom • the smallest amount of a substance you can have • states that matter cannot be created or destroyed • ...
Chemistry 2024-04-03
16 Clues: Lava • Wind • CaCo3 • Magma • Marble • Basalt • stomach • Needs heat • Earthquake • Igneous Rock • Early pencil • Sedimentary Rock • Peeling an onion • from brown to blue • Trapped Ancient spiral animal • Minecraft Nether Biom (...Delta)
chemistry 2025-01-09
Across
- substance that is made from atoms of two or more elements that are chemically bonded
- pure substance made of only one kind of atom
- depends on the amount of matter
- energy of motion
- occupies space
- ability of a substance to undergo chemical change
- depends on the type of matter
Down
- measure of the amount of space that is occupied
- releases energy into the surroundings
- matter that has definite composition
- absorbs energy from the surroundings
- beginning substances that start a reaction
- smallest unit of an element
- amount in matter
- has properties of both metals and nonmetal
- substances that are formed during the reaction
16 Clues: occupies space • energy of motion • amount in matter • smallest unit of an element • depends on the type of matter • depends on the amount of matter • matter that has definite composition • absorbs energy from the surroundings • releases energy into the surroundings • beginning substances that start a reaction • has properties of both metals and nonmetal • ...
chemistry 2025-03-25
Across
- formula of rust
- colour of ca-EBT complex
- method use to obtain pure water
- soft and smooth particle in boiler pipeline
- SOLUTION to use regeneration of zeolite
- process of removing salts,ionic dyes from water
- alkalinity practically possible
- in reverse osmosis water travel from high to _ concentration
- to remove o2 from boiler water
Down
- hardness can be removed by boiling and filteration
- EDTA is which legand _
- _chemistry has high risk of accident
- regeneration of CER
- hydrated sodium alumino silicate known as _
- hard and strong particle
- green has _ atom economy
16 Clues: formula of rust • regeneration of CER • EDTA is which legand _ • colour of ca-EBT complex • hard and strong particle • green has _ atom economy • to remove o2 from boiler water • method use to obtain pure water • alkalinity practically possible • _chemistry has high risk of accident • SOLUTION to use regeneration of zeolite • soft and smooth particle in boiler pipeline • ...
Chemistry 2025-11-25
Across
- A positive subatomic particle found in the nucleus.
- The number of protons found in the nucleus of an atom.
- A change in a substance that does not alter its chemical composition, like melting ice. (2 words)
- Discovered the nucleus using the Gold Foil Experiment. (Last name)
- The dense, positively charged center of an atom.
- A property that describes a substance's ability to undergo a change in its chemical composition, such as flammability. (2 words)
- Proposed the Plum Pudding Model where negative particles were embedded in a positive sphere.
Down
- Proposed that electrons orbit the nucleus in specific energy levels, like planets around the sun.
- A negative subatomic particle found orbiting the nucleus.
- A new substance is formed with different properties, such as burning wood. (2 words)
- A subatomic particle with no electrical charge, found in the nucleus.
- The smallest unit of an element that retains the properties of that element.
- A fundamental property of matter that can be observed or measured without changing the substance's identity, such as color or density. (2 words)
- The theory that all matter is composed of small particles called atoms. (2 words)
- Proposed that matter is made of indivisible, indestructible particles called atomos. (Last name)
- Developed the Modern Atomic Theory stating that all atoms of the same element are identical.
16 Clues: The dense, positively charged center of an atom. • A positive subatomic particle found in the nucleus. • The number of protons found in the nucleus of an atom. • A negative subatomic particle found orbiting the nucleus. • Discovered the nucleus using the Gold Foil Experiment. (Last name) • A subatomic particle with no electrical charge, found in the nucleus. • ...
Agriculture Unit 1 2020-09-01
Across
- study of the soil and its properties
- the management and care of livestock
- education
- the science of producing plants and fruits
- the study of insects
- economics
- scientific principles in agriculture
Down
- pest control system
- resources provided by nature
- dealing the elements or simple substances
- raising fish or shellfish
- food that has been grown without chemicals
- use of cells to produce products
- chemistry as it applies to living matter
- activities dealing with plant/animals
- basic science of life (plants an animals)
- commercial firms in agriculture
17 Clues: education • economics • pest control system • the study of insects • raising fish or shellfish • resources provided by nature • commercial firms in agriculture • use of cells to produce products • study of the soil and its properties • the management and care of livestock • scientific principles in agriculture • activities dealing with plant/animals • ...
Vocabulary Unit 2! 2020-10-06
20 Clues: art • pen • desk • door • quiz • seat • clock • house • chalk • paper • pencil • window • stadium • student • homework • semester • cafeteria • chemistry • blackboard • university
School 2020-11-25
20 Clues: üsna • alla • paar • kool • luule • eksam • trepp • keemia • seisma • juures • ajalugu • lollpea • kodutöö • direktor • õppeaine • kiindumus • koolitund • tunniplaan • kogunemine • paarikauba
Crossword 2023-11-17
20 Clues: Art • Then • Band • tenth • class • Teach • Peiod • Choir • eighth • Grades • Health • seventh • Science • English • Biology • Geometry • Chemistry • dictionary • calculator • Mathematics
Crossword 2023-11-17
20 Clues: Art • Then • Band • tenth • class • Teach • Peiod • Choir • eighth • Grades • Health • seventh • Science • English • Biology • Geometry • Chemistry • dictionary • calculator • Mathematics
Crossword 2023-11-17
20 Clues: Art • Then • Band • tenth • class • Teach • Peiod • Choir • eighth • Grades • Health • seventh • Science • English • Biology • Geometry • Chemistry • dictionary • calculator • Mathematics
kpl 6 2024-02-21
20 Clues: kova • leipä • ilman • puuro • hillo • kokki • silli • kemia • viesti • lounas • mahtava • kaivata • kahdesti • proteiini • intoilija • herkullinen • päivällinen • täydellinen • kotitekoinen • terveellinen
en la clase-Aldo 2023-09-21
20 Clues: libary • history • biology • because • physics • english • toarrive • economics • bookstore • chemistry • psychology • mathematics • totheleftof • wastebasket • tohavedinner • totherightof • nextto;besides • computerscience • tohavebreakfast • businessadministration
On the go 1 Unit 4 at school 2025-01-20
20 Clues: opo • kumi • kemia • terotin • käsityö • matikka • rehtori • fysiikka • viivotin • liikunta • maantieto • lyijykynä • kuvataide • kotitalous • kouluruokala • terveystieto • luokanvalvoja • kuulakärkikynä • terveydenhoitaja • vahtimestari/talonmies
Chemistry 2021-02-10
Across
- A colored substance used to color materials like fabric
- Giving off a type of energy that can be dangerous to humans
- A substance people used to think was escaping a material substance as it burned or rusted
- A process that produces a new element by changing the number of protons in an atom's nucleus
- Any substance that cleans
- A single type of molecule made of more than one type of atom
- A chemical that fabric was soaked in to prevent its color from fading
- Aristotle's fifth element that he thought composed the heavenly bodies
Down
- Man-made
- A process where oxygen combines with a substance
- A substance to be burned that will produce energy, like wood or paper
- The Law of Conservation of ____ says that substances in a chemical reaction are neither created nor destroyed.
- A chemical ___ is the changing of a substance into a new substance.
- Burning
- Water that has high amounts of calcium, magnesium, and/or iron
- A chemical found in wood ash used to make soap
16 Clues: Burning • Man-made • Any substance that cleans • A chemical found in wood ash used to make soap • A process where oxygen combines with a substance • A colored substance used to color materials like fabric • Giving off a type of energy that can be dangerous to humans • A single type of molecule made of more than one type of atom • ...
Chemistry 2021-03-04
Across
- one magnesium atom and two chlorine atoms
- the atomic number is 28
- numbers going across the top of the periodic table
- the symbol for chromium
- substance made entirely of one type of atom
- element that has the symbol C
- group 7, period 2
- within the air
- atomic mass for oxygen
Down
- numbers on the left side of the periodic table
- 2 or more atoms held together by chemical bonds
- 2 or more different element held together by chemical bonds
- 2 or more substances not chemically combined together
- a compound that is used daily
- amount of alkali metals on the periodic table
- what is hydrogens atomic number
16 Clues: within the air • group 7, period 2 • atomic mass for oxygen • the atomic number is 28 • the symbol for chromium • element that has the symbol C • a compound that is used daily • what is hydrogens atomic number • one magnesium atom and two chlorine atoms • substance made entirely of one type of atom • amount of alkali metals on the periodic table • ...
Chemistry 2021-03-03
Across
- has a definite shape
- the characteristics of an element
- the letter that represents an element
- the space that a substance takes up
- makes up everything
- divide mass by volume
Down
- takes the shape of its container
- has a neutral charge
- similar to weight of an atom
- has a negative charge
- wants to escape
- the dense center of an atom
- has a positive charge
- first designed the periodic table
- substance that can not be changed
- how much an element weighs
16 Clues: wants to escape • makes up everything • has a neutral charge • has a definite shape • has a negative charge • has a positive charge • divide mass by volume • how much an element weighs • the dense center of an atom • similar to weight of an atom • takes the shape of its container • the characteristics of an element • first designed the periodic table • substance that can not be changed • ...
chemistry 2018-06-01
Across
- one half the distance between the nuclei of two atoms of the same element when the atoms are joined
- a bond in which two atoms share two pairs of electrons
- a bond format by the sharing of electrons between atoms
- the ability of a substance to undergo a specific chemical change
- the percent by mass of each element in a compound
- a term used to refer to the mass of a mole of any substance
- an electron in the highest occupied energy level of an atom
- a compound composed of two elements; NaCl
Down
- a high- energy proton emitted by a radio isotope
- a bond formed when two atoms share a pair electrons
- the percent that a measured value differs from the accepted value
- a negatively charged subatomic particle
- A Property that depends on the amount of matter in a sample
- an electron resulting from the breaking apart of neutrons in an atom
- a compound composed of positive and negative ions
- a compound that produces hydrogen ions in solution;
16 Clues: a negatively charged subatomic particle • a compound composed of two elements; NaCl • a high- energy proton emitted by a radio isotope • the percent by mass of each element in a compound • a compound composed of positive and negative ions • a bond formed when two atoms share a pair electrons • a compound that produces hydrogen ions in solution; • ...
Chemistry 2024-04-29
Across
- Smallest unit of an element.
- how positive or negative an atom is.
- ionic compound produced by reacting an acid with a base.
- negatively charged ions are called.
- to be broken into smaller pieces.
- Lowest energy state of any atom or ion is called ground state of the atom.
- What do acids produce.
- two or more atoms joined together by a chemical bond is called.
- The founding father of chemistry.
Down
- Number of protons in an atom.
- Center of an Atom.
- a substance that cannot be broken down by chemical.
- New Zealand scientists that figured out subatomic structure.
- A beam of light.
- Discovery of atoms being indivisible.
- The term given to Atoms.
16 Clues: A beam of light. • Center of an Atom. • What do acids produce. • The term given to Atoms. • Smallest unit of an element. • Number of protons in an atom. • to be broken into smaller pieces. • The founding father of chemistry. • negatively charged ions are called. • how positive or negative an atom is. • Discovery of atoms being indivisible. • ...
Chemistry 2023-08-30
Across
- molecule with a charge imbalance (like H20)
- London ____ forces
- type of bond in which electrons are shared
- the combined weight of an atom's protons and neutrons
- same element with different no. of neutrons
- corresponds to the number of protons
- fundament unit of matter
- atom with a net (+) charge
Down
- strong bond in which electrons are transferred
- protons and neutrons live here
- pos. charged particle, contributes mass
- atom with a net (-) charge
- neg. charged particle responsible for bonding/chemistry
- a charged atom
- bond btw H and a highly electronegative element (N,O,F)
- particle with no charge. contributes mass
16 Clues: a charged atom • London ____ forces • fundament unit of matter • atom with a net (-) charge • atom with a net (+) charge • protons and neutrons live here • corresponds to the number of protons • pos. charged particle, contributes mass • particle with no charge. contributes mass • type of bond in which electrons are shared • molecule with a charge imbalance (like H20) • ...
chemistry 2022-02-23
Across
- with equal strength combine, they cancel each other out
- property can change without a new substance being formed.
- how it will dissolve
- the substance in which the solute dissolves to form a solution
- liquid to gas
- seen from the naked eye
- liquid to solid
Down
- property a substance that describes how it will react with other substances.
- chemical saftey
- amount of solute in a solution
- gas to solid
- made up of two pure substances
- taste sour
- taste bitter
- the substance that dissolve to form a solution.
- adding more solvent
16 Clues: taste sour • gas to solid • taste bitter • liquid to gas • chemical saftey • liquid to solid • adding more solvent • how it will dissolve • seen from the naked eye • amount of solute in a solution • made up of two pure substances • the substance that dissolve to form a solution. • with equal strength combine, they cancel each other out • ...
Science Intro CW 1 2021-08-19
Across
- the study of oceans, its chemistry, and the living things found there
- studies life in the past, such as studying dinosaur fossils
- the study of matter at the chemical level
- the study of the animal kingdom
- the study of space involving both chemistry and physics
Down
- the study of matter in the perspective of energy and motion
- ________ sciences involves studying matter to determine what is happening physically
- the study of the plant kingdom
- _______ sciences, which is also called biology, explore living things
- studies genes and heredity
- examines the structure of the earth to study its history
- is the study of weather, with strong focus on predicting how weather will occur
- also called life science
- ______ sciences involves studying our planet and its resources
14 Clues: also called life science • studies genes and heredity • the study of the plant kingdom • the study of the animal kingdom • the study of matter at the chemical level • the study of space involving both chemistry and physics • examines the structure of the earth to study its history • the study of matter in the perspective of energy and motion • ...
General Chemistry 2020-05-25
Across
- number: The sum of the number of protons and neutrons in its nucleus
- bond: Formed by losing and gaining of electrons between metal and nonmetal
- Uncharged particle found within the atomic nuclei
- figures: The digits in any measurement that are known with certainty plus one digit which is uncertain
- it is a branch of chemistry that studies the chemical processes within and relating to living organisms. Biochemical processes give rise to the complexity of life.
- The quantity of matter in the body
- Formed when atom loses or gains electron
- chemistry: the branch of chemistry concerned with the application of the techniques and theories of physics to the study of chemical systems.
- mixture: Called as solution: a mixture with uniform composition.
- a period of time equal to sixty seconds or a sixtieth of an hour.
- level: Specific energy value of electrons for an atom
- Horizontal row in the periodic table
- mixture: Mixture whose a composition varies from position to position within a sample.
- the quality, condition, or fact of being exact and accurate.
- Substance consisting of only one kind of atom
- Separates components of mixture at different boiling points.
- Positively:charged subatomic particle of an atom
- the size: length: or amount of something: as established by measuring.
- the closeness of a single measurement to its true value
- physical property: physical property that does not depend on the size or amount of the sample
- phase change in which liquid is converted to gas
- the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact: combine: and change; and the use of these processes to form new substances.
- The amount of space occupied by a substance
- Elements found in the zigzag order in the periodic table
- Phase change in which liquid is converted to solid
- Elements at the left side and in the center of the periodic table
Down
- a substance that flows freely but is of constant volume: having a consistency like that of water or oil.
- Anything that has mass and occupies space
- a substance or object that is solid rather than liquid or fluid
- inner transition elements located in the first row of the f:block in the periodic table
- compound: Compound that consists of two charged ions
- Group 7A elements
- Composed of two or more substances: combined physically in variable proportions
- separation: The separation of elemental metals from the mixtures
- the measurement or extent of something from end to end
- rule: states that atoms other than hydrogen tend to form bonds until surrounded by eight valence electrons
- Organic compound with carbon and oxygen only
- movement of one fluid through another.
- the fundamental unit of length in the metric system: equal to 100 centimeters or approximately 39.37 inches.
- a substance or matter in a state in which it will expand freely to fill the whole of a container: having no fixed shape and no fixed volume.
- gas: insert gas located at the rightmost side of the periodic table
- a metric unit of length: equal to one hundredth of a meter.
- Phase change that involves the conversion from solid to liquid
- Chemistry: it is a branch of chemistry that deals with synthesis and behavior of inorganic and organometallic compounds.
- Element that appears at the far right side of the periodic table
- Negatively:charged subatomic particle of an atom
- Ratio of the mass of an object to the volume occupied by that object.
- chemistry: it is a branch of chemistry that studies the structure: properties and reactions of organic compounds: which contain carbon in covalent bonding. Study of structure determines their chemical composition and formula.
- Process in which the solid particles are filtered to allow the liquid or filtrate to pass through the filter: and be collected as residue
- chemistry: it is a branch of chemistry that studies and uses instruments and methods used to separate: identify: and quantify matter.
- mass: Indicates that one mole of an element has a mass in grams numerically equal to its atomic mass units
- a metric unit of capacity: formerly defined as the volume of one kilogram of water under standard conditions: now equal to 1:000 cubic centimeters
52 Clues: Group 7A elements • The quantity of matter in the body • Horizontal row in the periodic table • movement of one fluid through another. • Formed when atom loses or gains electron • Anything that has mass and occupies space • The amount of space occupied by a substance • Organic compound with carbon and oxygen only • Substance consisting of only one kind of atom • ...
