chemistry Crossword Puzzles

Chemistry 2019-06-03

Across

anything that takes up space and has mass
electron in the highest energy level
smallest type of matter
positively charged ion
respresents a chemical substance
ending substance

Down

respresents a chemical reaction
starting substance
charged atom
negatively charged ion

10 Clues: charged atom • ending substance • starting substance • negatively charged ion • positively charged ion • smallest type of matter • respresents a chemical reaction • respresents a chemical substance • electron in the highest energy level • anything that takes up space and has mass

Chemistry 2019-10-23

Across

a substance that speeds up a chemical reaction, but is not consumed by the reaction
... are substances initially present in a chemical reaction that are consumed during the reaction to make products
any of a class of natural or synthetic substances composed of very large molecules,that are multiples of simpler chemical units called monomers.
the separation of a mixture by passing it in solution or suspension or as a vapor through a medium in which the components move at different rates
a technique used to separate out homogeneous mixtures where there is one or more dissolved salts.

Down

a separation method used to separate out pure substances in mixtures comprised of particles, some of which are large enough in size to be captured with a porous material.
... chemistry uses qualitative and quantitative observation to identify and measure the physical and chemical properties of substances. In a sense, all chemistry is analytical.
... flask, a titration flask, is a type of laboratory flask which features a flat bottom, a conical body, and a cylindrical neck
an effective method to separate mixtures comprised of two or more pure liquids
a vessel in which substances are ground or crushed with a pestle.

10 Clues: a vessel in which substances are ground or crushed with a pestle. • an effective method to separate mixtures comprised of two or more pure liquids • a substance that speeds up a chemical reaction, but is not consumed by the reaction • a technique used to separate out homogeneous mixtures where there is one or more dissolved salts. • ...

Chemistry 2019-10-23

Across

a substance that speeds up a chemical reaction, but is not consumed by the reaction
any of a class of natural or synthetic substances composed of very large molecules,that are multiples of simpler chemical units called monomers.
a vessel in which substances are ground or crushed with a pestle.
an effective method to separate mixtures comprised of two or more pure liquids
... chemistry uses qualitative and quantitative observation to identify and measure the physical and chemical properties of substances. In a sense, all chemistry is analytical.

Down

a separation method used to separate out pure substances in mixtures comprised of particles, some of which are large enough in size to be captured with a porous material.
the separation of a mixture by passing it in solution or suspension or as a vapor through a medium in which the components move at different rates
a technique used to separate out homogeneous mixtures where there is one or more dissolved salts.
... are substances initially present in a chemical reaction that are consumed during the reaction to make products
... flask, a titration flask, is a type of laboratory flask which features a flat bottom, a conical body, and a cylindrical neck

chemistry 2020-09-07

Across

composed of the same kind of matter.
the smallest particles.
characterized by definiteshape and volume.
agroup of symbols.
groups of two or more atoms.
substance that can be descompose .

Down

substances that are incompletely mixed.
difined as anything occupies space and mass.
symbols are abreviations of the english names.
substances that cannot be broken down.

10 Clues: agroup of symbols. • the smallest particles. • groups of two or more atoms. • substance that can be descompose . • composed of the same kind of matter. • substances that cannot be broken down. • substances that are incompletely mixed. • characterized by definiteshape and volume. • difined as anything occupies space and mass. • symbols are abreviations of the english names.

Chemistry 2020-12-11

Across

color, melting, boiling points
a tiny particle
Carbon-14
carbon, oxygen, hydrogen, gold
solid to a liquid

Down

Dirt and water (Mud)
baking a cake, Burning of paper
a positive electric charge
H2O (water)
negative electric charge

10 Clues: Carbon-14 • H2O (water) • a tiny particle • solid to a liquid • Dirt and water (Mud) • negative electric charge • a positive electric charge • color, melting, boiling points • carbon, oxygen, hydrogen, gold • baking a cake, Burning of paper

Chemistry 2024-04-30

Across

The scientist that first arranged the periodic table
A metal oxide or hydroxide
How many hydrogen atoms are in a molecule of water?
The amount of matter in an object
Describes a solution with a pH greater than 7

Down

The only element capable of killing Superman
Used to blow up balloons
Building block of life
Good conductor of electricity
Mr. Rosner's dogs name

10 Clues: Building block of life • Mr. Rosner's dogs name • Used to blow up balloons • A metal oxide or hydroxide • Good conductor of electricity • The amount of matter in an object • The only element capable of killing Superman • Describes a solution with a pH greater than 7 • How many hydrogen atoms are in a molecule of water? • The scientist that first arranged the periodic table

Chemistry 2024-09-07

Across

A chemical combination of two or more particles
An element that can lose electrons easily and form metallic bonds
Positively charged subatomic particle
Negatively charged particles with negligible mass

Down

In
Existence of a chemical element intwo or more forms
An anion containing oxygen
A solution that resist pH change upon the addition of an acid or a base
Any substance that occupies space and has a mass
Neutral charged particle

10 Clues: In • Neutral charged particle • An anion containing oxygen • Positively charged subatomic particle • A chemical combination of two or more particles • Any substance that occupies space and has a mass • Negatively charged particles with negligible mass • Existence of a chemical element intwo or more forms • An element that can lose electrons easily and form metallic bonds • ...

Chemistry 2024-04-24

Across

hold atoms together
negatively changed ions
a group of atoms that have electric charge
even sharing of electrons
electrons are shared
coming/ forcing to be together

Down

uneven sharing of electrons
energy released thru a chemical reaction
ions that are positively charged
electrons are transferred

10 Clues: hold atoms together • electrons are shared • negatively changed ions • even sharing of electrons • electrons are transferred • uneven sharing of electrons • coming/ forcing to be together • ions that are positively charged • energy released thru a chemical reaction • a group of atoms that have electric charge

Chemistry 2024-08-09

Across

Has a fixed volume but an unfixed shape
Group 1 of the periodic table.
contains two or more elements. Cannot be separated by physical means.
Gases Group 18 of the periodic table.
Group 17 of the periodic table
substances that aren't chemically combined

Down

Group 2 of the periodic table
Has an unfixed volume and shape
made up of one type of atom
Has a fixed volume and shape.

10 Clues: made up of one type of atom • Group 2 of the periodic table • Has a fixed volume and shape. • Group 1 of the periodic table. • Group 17 of the periodic table • Has an unfixed volume and shape • Gases Group 18 of the periodic table. • Has a fixed volume but an unfixed shape • substances that aren't chemically combined • ...

Chemistry 2023-02-23

Across

negative atom orbiting the nucleus
negatively charged electron
made of atoms
positively charged electron
positive atom in the nucleus

Down

bond two nonmetals
neutral atom in the nucleus
bond nonmetal and metal
A ____ where electrons can be transferred from one atom to another
the basic unit of a chemical element

10 Clues: made of atoms • bond two nonmetals • bond nonmetal and metal • negatively charged electron • neutral atom in the nucleus • positively charged electron • positive atom in the nucleus • negative atom orbiting the nucleus • the basic unit of a chemical element • A ____ where electrons can be transferred from one atom to another

Chemistry 2023-03-08

Across

Symbol of Ethanol.
Metal oxide + water.
Group 1 metal in the periodic table.
The heaviest of the stable halogens.
Solution that does not dissolve any more solute (maximum capacity).

Down

The most reactive metal in group 1.
Symbol of Ethane.
Combination of 1 carbon atom and 4 hydrogen atoms.
Process between a non-metal and metal lost and gained particles.
Acid that forms nitrate salt after reacts.

10 Clues: Symbol of Ethane. • Symbol of Ethanol. • Metal oxide + water. • The most reactive metal in group 1. • Group 1 metal in the periodic table. • The heaviest of the stable halogens. • Acid that forms nitrate salt after reacts. • Combination of 1 carbon atom and 4 hydrogen atoms. • Process between a non-metal and metal lost and gained particles. • ...

Chemistry 2023-01-30

Across

The particles in an atom that have a neutral charge.
The quantity of matter contained in an atom of an element.
Tiny particles inside the centre of an atom.
A negatively charged subatomic particle.
Name of group 1 in the periodic table.
Name of group 7 in the periodic table.

Down

Atoms that have the same number of protons & electrons, but a different number of neutrons.
Who created the periodic table?
A substance that combines more than on metal.
What is it called when a metal & non-metal gives an electron?

10 Clues: Who created the periodic table? • Name of group 1 in the periodic table. • Name of group 7 in the periodic table. • A negatively charged subatomic particle. • Tiny particles inside the centre of an atom. • A substance that combines more than on metal. • The particles in an atom that have a neutral charge. • The quantity of matter contained in an atom of an element. • ...

Chemistry 2023-04-30

Across

particle consisting of a nucleus of protons and electrons surrounded by a cloud of electrons
scientist trained in the study of chemistry
subatomic particle with negative charge found in an atom's shell
form of matter having constant chemical composition that can not be physically separated
lightest element: has atomic number 1
material made up of two or more different chemical substances not chemically bonded

Down

scale used to specify the acidity or basicity of an aqueous solution
force attracting atoms to each other and binding them together in a molecule
odorless, colorless class of chemical elements with low reactivity
chemical compound containing at least one oxygen atom and one other element

10 Clues: lightest element: has atomic number 1 • scientist trained in the study of chemistry • subatomic particle with negative charge found in an atom's shell • odorless, colorless class of chemical elements with low reactivity • scale used to specify the acidity or basicity of an aqueous solution • ...

Chemistry 2023-08-13

Across

a body temperature that is above normal.
liquid that has gone through the process of filtration
the action of being moved apart.
a substance made by mixing other substances together.

Down

a minute portion of matter.
holding as much water as can be absorbed
pouring from one container into another
particles filling the whole container.
a substance that flows freely.
firm and stable in shape.

10 Clues: firm and stable in shape. • a minute portion of matter. • a substance that flows freely. • the action of being moved apart. • particles filling the whole container. • pouring from one container into another • holding as much water as can be absorbed • a body temperature that is above normal. • a substance made by mixing other substances together. • ...

Chemistry 2023-08-13

Across

a body temperature that is above normal.
liquid that has gone through the process of filtration
the action of being moved apart.
a substance made by mixing other substances together.

Down

a minute portion of matter.
holding as much water as can be absorbed
pouring from one container into another
particles filling the whole container.
a substance that flows freely.
firm and stable in shape.

Chemistry 2023-08-13

Across

a small discrete amount of something.
a substance made by mixing other substances together.
holding as much water as can be absorbed
firm and stable in shape.
the action of being moved apart.
particles filling the whole container.

Down

liquid that has gone through the process of filtration
a body temperature that is above normal.
pouring from one container into another
a substance that flows freely.

10 Clues: firm and stable in shape. • a substance that flows freely. • the action of being moved apart. • a small discrete amount of something. • particles filling the whole container. • pouring from one container into another • a body temperature that is above normal. • holding as much water as can be absorbed • a substance made by mixing other substances together. • ...

Chemistry 2023-08-13

Across

a small discrete amount of something.
a substance that flows freely.
holding as much water as can be absorbed
the action of being moved apart.
a substance made by mixing other substances together.

Down

firm and stable in shape.
a body temperature that is above normal.
liquid that has gone through the process of filtration
pouring from one container into another
particles filling the whole container.

chemistry 2023-08-13

Across

these three are in gas, liquid or solid.
where its in a solid form you can use stuff to make.
this is what you use to separate magnet out of water.
when a solid becomes a liquid.

Down

when a liquid becomes a solid.
is were you cant see something in the water because its ------
a few things mixed together to become a ------
its were the sand can go through but pebbles cant when you use it
what you call liquid that goes to gas.
it can be hot cold or room -----------

10 Clues: when a liquid becomes a solid. • when a solid becomes a liquid. • what you call liquid that goes to gas. • it can be hot cold or room ----------- • these three are in gas, liquid or solid. • a few things mixed together to become a ------ • where its in a solid form you can use stuff to make. • this is what you use to separate magnet out of water. • ...

Chemistry 2023-08-16

Across

new substances formed are called
magnesium + hydrochloric acid
another way to represent chemical reactions
substances that react together are called
reaction to form new substances
can dissolve in water

Down

can not dissolve in water
potassium iodide + hydrogen peroxide
Insoluble solid formed
Magnesium oxide is a

10 Clues: Magnesium oxide is a • can dissolve in water • Insoluble solid formed • can not dissolve in water • magnesium + hydrochloric acid • reaction to form new substances • new substances formed are called • potassium iodide + hydrogen peroxide • substances that react together are called • another way to represent chemical reactions

chemistry 2023-08-16

Across

built up of atoms
number the amount of protons
test a quiz
number how many little dots there are
good electric flow

Down

a combo
an element
shiny
a thing that is composed
the building blocks of matter

10 Clues: shiny • a combo • an element • test a quiz • built up of atoms • good electric flow • a thing that is composed • number the amount of protons • the building blocks of matter • number how many little dots there are

Chemistry 2024-12-16

Across

One of the few elements aside from Carbons that is need to make organic molecule,
One of the three physicists that led a much better model of atoms.
A quantum number that can only have ½ and -½ as its value.
When a metal gains an electron making it negatively charged.
A compound that has a fruity and pleasant odor. Used for fragrance.

Down

Ions that contain two or more atoms
A formula that is the simplest whole-number ratio of the elements present.
Electrons fill lower-energy atomic orbitals before filling higher-energy ones.
-mass. The sum of atoms in one formula unit.
(plural) An atom or group of an atom that has a charge.

10 Clues: Ions that contain two or more atoms • -mass. The sum of atoms in one formula unit. • (plural) An atom or group of an atom that has a charge. • A quantum number that can only have ½ and -½ as its value. • When a metal gains an electron making it negatively charged. • One of the three physicists that led a much better model of atoms. • ...

Chemistry 2025-01-09

Across

the study of matter
of the same kind
compounds formed when two atoms share electrons
matter with uniform properties

Down

how close measurements are to the excepted value
how close measurements of the same are to eachother
diverse in character or content
compounds formed from a metal and nonmetal sharing electrons
cannot be broken down into smaller parts
the smallest particles of elements

10 Clues: of the same kind • the study of matter • matter with uniform properties • diverse in character or content • the smallest particles of elements • cannot be broken down into smaller parts • compounds formed when two atoms share electrons • how close measurements are to the excepted value • how close measurements of the same are to eachother • ...

Chemistry 2025-01-30

Across

The rate of a chemical reaction increases at ______ temperatures
Materials made from chemical reactions
The law of _____ proportions says that the compounds in an equation have a fixed ratio
Chemical reactions happen in a ____ system
How long it takes for reactions to happen
The theory of how effective collisions happen

Down

The original materials in a reaction
How dense the reactants are. An increase in this increases reactions
For a reaction to happen the energy must be...
When there is the same number of atoms on both sides of an equation

10 Clues: The original materials in a reaction • Materials made from chemical reactions • How long it takes for reactions to happen • Chemical reactions happen in a ____ system • The theory of how effective collisions happen • For a reaction to happen the energy must be... • The rate of a chemical reaction increases at ______ temperatures • ...

Chemistry 2025-05-20

Across

The total number of protons and neutrons in an atom
Pure substance made of only one kind of atom
A group of atoms bonded together
The science that studies matter and its changes
Positively charged particle in an atom’s nucleus

Down

The number of protons in an atom
Particle with no electric charge
The central part of an atom
Basic unit of a chemical element
Negatively charged particle orbiting the nucleus

10 Clues: The central part of an atom • The number of protons in an atom • Particle with no electric charge • Basic unit of a chemical element • A group of atoms bonded together • Pure substance made of only one kind of atom • The science that studies matter and its changes • Negatively charged particle orbiting the nucleus • Positively charged particle in an atom’s nucleus • ...

Chemistry 2025-05-12

Across

divided by volume
for water
smallest unit of an element
of bond where electrons are shared
charged particle

Down

made of two or more elements
of matter with no fixed shape
less than 7
of protons in an atom
that organizes elements

10 Clues: for water • less than 7 • charged particle • divided by volume • of protons in an atom • that organizes elements • smallest unit of an element • made of two or more elements • of matter with no fixed shape • of bond where electrons are shared

Chemistry 2025-05-12

Across

divided by volume
for water
smallest unit of an element
of bond where electrons are shared
charged particle

Down

made of two or more elements
of matter with no fixed shape
less than 7
of protons in an atom
that organizes elements

Chemistry 2025-05-12

Across

divided by volume
for water
smallest unit of an element
of bond where electrons are shared
charged particle

Down

made of two or more elements
of matter with no fixed shape
less than 7
of protons in an atom
that organizes elements

chemistry 2023-04-14

Across

to be hammered into thin sheets
outer layers of atom made up of energy levels
anything that has mass and takes up space
positive charge, mass of 1 amu

Down

the smallest unit of matter
a substance that consists of atoms that all have the same number of protons
ability to reflect light
a substance composed of two or more elements
ability to react with other elements
center of the atom

10 Clues: center of the atom • ability to reflect light • the smallest unit of matter • positive charge, mass of 1 amu • to be hammered into thin sheets • ability to react with other elements • anything that has mass and takes up space • a substance composed of two or more elements • outer layers of atom made up of energy levels • ...

Chemistry 2023-04-14

Across

This is Very Neutral
Goes Vertical
when more get added the higher the number of this goes up
In the center of a Element
Goes horizontal
Everything has it

Down

You can find all the elements in this
Use in Hardware
This is Very Negative
This is Very Positive

10 Clues: Goes Vertical • Use in Hardware • Goes horizontal • Everything has it • This is Very Neutral • This is Very Negative • This is Very Positive • In the center of a Element • You can find all the elements in this • when more get added the higher the number of this goes up

Chemistry 2023-01-16

Across

The smallest unit of matter.
The substance present in a smaller amount in a solution.
The number of moles of solute per liter of solution.
The ______ formula of a chemical compound is the simplest whole number ratio of atoms present in a compound.
The process of decreasing the concentration of a solute in a solution.
The number 6.022×10²³ is known as ______ number.

Down

The quantity of solute present in a given quantity of solution.
An _______ solution is a solution in which the solvent is water.
A chemical substance that dissolves another chemical substance to form a solution
One _____ of a substance is equal to 6.022×10²³ of chemical units

10 Clues: The smallest unit of matter. • The number 6.022×10²³ is known as ______ number. • The number of moles of solute per liter of solution. • The substance present in a smaller amount in a solution. • The quantity of solute present in a given quantity of solution. • An _______ solution is a solution in which the solvent is water. • ...

Chemistry 2023-03-24

Across

The boring element
Broken as been missing en with a bleach
I on the periodic table
end of melting
____ rain

Down

Turning gas into liquid
"Grounded apple sound", burnt water
The thing that makes things float
7 ph
hard

10 Clues: 7 ph • hard • ____ rain • end of melting • The boring element • Turning gas into liquid • I on the periodic table • The thing that makes things float • "Grounded apple sound", burnt water • Broken as been missing en with a bleach

chemistry 2024-10-30

Across

mixture with a specific purpose
a liquid that solute dissolves in
how soluble is in a specific solvent

Down

the technique used to separate mixtures with different boiling points
technique used for separating mixtures of soluble substances
the word for something that cannot dissolve
the substance that is dissolved into a liquid
water Water that is safe to drink
the word for something that is able to dissolve
mixture when the solute dissolves into the solvent

10 Clues: mixture with a specific purpose • water Water that is safe to drink • a liquid that solute dissolves in • how soluble is in a specific solvent • the word for something that cannot dissolve • the substance that is dissolved into a liquid • the word for something that is able to dissolve • mixture when the solute dissolves into the solvent • ...

Chemistry 2024-10-31

Across

Ex:PUMKIN
solute + solvent
Water fearing
Anything with mass
99% of our universe

Down

fluid that flows
a fluids resistance to flow
Proteins, lipids, carbs, nucleic Acids
Ex:sugars
Physical property of matter= d=m/v

10 Clues: Ex:PUMKIN • Ex:sugars • Water fearing • fluid that flows • solute + solvent • Anything with mass • 99% of our universe • a fluids resistance to flow • Physical property of matter= d=m/v • Proteins, lipids, carbs, nucleic Acids

Chemistry 2026-01-16

Across

how atoms are held together
substance made of one type of atom
anything that takes up space
2 or more physically combined elements

Down

2 or more chemically combined elements
an example or a compound
2 or more chemically combined atoms
how many protons in an element
building blocks
an example of a mixture

10 Clues: building blocks • an example of a mixture • an example or a compound • how atoms are held together • anything that takes up space • how many protons in an element • substance made of one type of atom • 2 or more chemically combined atoms • 2 or more chemically combined elements • 2 or more physically combined elements

Chemistry 2025-08-11

Across

A starting substance in a chemical reaction
A reaction that absorbs heat
The total heat content of a system
energy Minimum energy required to start a reaction

Down

A substance formed from a chemical reaction
A reaction where two or more substances combine to form a single product
A reaction where one compound breaks down into simpler substances
A reaction that involves oxygen and produces heat and light
A reaction that releases heat
Speeds up a chemical reaction without being consumed

10 Clues: A reaction that absorbs heat • A reaction that releases heat • The total heat content of a system • A substance formed from a chemical reaction • A starting substance in a chemical reaction • energy Minimum energy required to start a reaction • Speeds up a chemical reaction without being consumed • A reaction that involves oxygen and produces heat and light • ...

CHEMISTRY 2025-11-18

Across

An atom or molecule with a net electrical charge due to the loss or gain of one or more electrons.
The number of protons in the nucleus of an atom.
A substance that cannot be broken down into simpler substances by chemical means.
A mixture where one substance (the solute) is dissolved evenly throughout another substance (the solvent).
A chemical reaction where a substance combines rapidly with oxygen, releasing heat and light.

Down

A chemical bond involving the sharing of electron pairs between atoms.
A substance that increases the rate of a chemical reaction without undergoing a permanent chemical change itself.
The region of space around the nucleus where electrons are most likely to be found.
The process by which a solid changes directly into a gas without first becoming a liquid (e.g., dry ice).
The basic unit of a chemical element.

10 Clues: The basic unit of a chemical element. • The number of protons in the nucleus of an atom. • A chemical bond involving the sharing of electron pairs between atoms. • A substance that cannot be broken down into simpler substances by chemical means. • The region of space around the nucleus where electrons are most likely to be found. • ...

Chemistry 2021-05-27

Across

Liquids and gases flow and change shape and so they are also called
It is the amount of water-vapours present in air
Change of solid state into into liquid state
A change of solid state into gaseous state
It causes cooling

Down

The state of matter can be changed by changing temperature or
Intermixing of particles of two different types of matter on their use
It is a bulk phenomenon
All these occupy space and have mass
Evaporation is a _______ phenomenon

10 Clues: It causes cooling • It is a bulk phenomenon • Evaporation is a _______ phenomenon • All these occupy space and have mass • A change of solid state into gaseous state • Change of solid state into into liquid state • It is the amount of water-vapours present in air • The state of matter can be changed by changing temperature or • ...

Chemistry 2021-06-17

Across

Study of Matter
rows on the periodic table
17th group elements
Laughing gas
one of the chalcogens

Down

King of acids
Lightest element
month of Avogadro Number
simplest repeating structure of a crystal
Polymer of isoprene

10 Clues: Laughing gas • King of acids • Study of Matter • Lightest element • 17th group elements • Polymer of isoprene • month of Avogadro Number • one of the chalcogens • rows on the periodic table • simplest repeating structure of a crystal

chemistry 2021-04-26

Across

links upstream and downstream.
The upstream oil sector is also known as the (3) and (4) (E&P) sector.
The main objectives of the midstream process are transporting and (7) the discovered oil and gas.
Oil and natural gas combine to create a liquid called (1).
The sector in which the refining, processing, and purifying of oil and natural gasses occurs. (9).
The downstream process pushes finished products such as: gas, lubricants, waxes, fuel, and kerosene out of storage and into the (10).

Down

exploration and production sector: collecting data and (5) wells.
(11) oil prices are an advantage to downstream and petrochemical activities, as they are crushing upstream economics.
The upstream oil sector is also known as the (3) and (4) (E&P) sector.
Midstream is the sector in which the (6) of crude or refined petroleum products occurs through pipeline, oil tanker, barge, truck, or rail.
The three sectors of the oil and gas industry are: (2), midstream, and downstream

11 Clues: links upstream and downstream. • Oil and natural gas combine to create a liquid called (1). • exploration and production sector: collecting data and (5) wells. • The upstream oil sector is also known as the (3) and (4) (E&P) sector. • The upstream oil sector is also known as the (3) and (4) (E&P) sector. • ...

chemistry 2022-06-13

Across

Down

10 Clues: He • Cu • Fe • Ca • Co • Au • Ar • Na • Hg • Ag

Chemistry 2022-12-04

Across

Devansh picked up a ball of a certain substance and threw it up when it hit the ground it did not break but it dented badly.What could be the substance.
Who was the first scientist to use the term element in 1661?
I am a non metal which is a good conductor of heat.Who am I ?
I am a metal brown in colour .Who am I ?
I Am a metal which is non-malleable at room temperature.Who am I ?
Melting of a candle is what type of a change?

Down

A______ Is a substance composed of Two or more elements chemically combined with one another in a fixed proportion.
Vidyans picked up another ball But this one melted in his hand as soon as he touched it .What could it be made of?
I am a metal having the lowest melting point.Who am I?
Ravi is given sulfur and iron fillings he combines them by heating them to form FeS .What kind of mixture is formed in this case?

10 Clues: I am a metal brown in colour .Who am I ? • Melting of a candle is what type of a change? • I am a metal having the lowest melting point.Who am I? • Who was the first scientist to use the term element in 1661? • I am a non metal which is a good conductor of heat.Who am I ? • I Am a metal which is non-malleable at room temperature.Who am I ? • ...

Chemistry 2022-12-08

Across

Substance that neutralises bases
compound which also goes by the name "dihydrogen monoxide"
atom that makes up most of organic lifeforms
One of two scientists who developed the synthesis of ammonia
Nobel Prize Winner who is the first woman to do so in that field
Molecule that consists of many identical parts

Down

atom that is missing one or more electrons
Place where experiments are conducted
Chemical unit that is also an animal
Part of the atom that consists of protons and neutrons

10 Clues: Substance that neutralises bases • Chemical unit that is also an animal • Place where experiments are conducted • atom that is missing one or more electrons • atom that makes up most of organic lifeforms • Molecule that consists of many identical parts • Part of the atom that consists of protons and neutrons • compound which also goes by the name "dihydrogen monoxide" • ...

chemistry 2022-12-16

Across

a person who manages a home and often raises children instead of earning money from a job
a very short period of time
the scientific study of the basic characteristics of substances and the ways in which they react or combine
the process of protecting someone or something and providing what that person or thing needs

Down

continuing in one direction without bending or curving
something, such as a funny story or trick, that is said or done in order to make people laugh
not easy to bend, cut, or break
to give someone knowledge or to train someone; to instruct
to come out of a mother's body
having strong feelings of sadness or sympathy, because of something someone has said or done

10 Clues: a very short period of time • to come out of a mother's body • not easy to bend, cut, or break • continuing in one direction without bending or curving • to give someone knowledge or to train someone; to instruct • a person who manages a home and often raises children instead of earning money from a job • ...

Chemistry 2022-11-29

Across

both oxidation and reduction
loss of electrons
a strong form of carbon
relating to or denoting chemical bonds formed by the sharing of electrons between atoms

Down

gain of electrons
detach or remove from a particular place or location
strong electrostatic attraction between oppositely charged ions
a form of carbon which is an element and in layers
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
relating to or consisting of molecules

10 Clues: gain of electrons • loss of electrons • a strong form of carbon • both oxidation and reduction • relating to or consisting of molecules • a form of carbon which is an element and in layers • detach or remove from a particular place or location • strong electrostatic attraction between oppositely charged ions • ...

Chemistry 2019-01-16

Across

The arrangement of elements in the order of increasing atomic number in a table.
A fuel formed from the remains and skeletons of dead matter from over a million years ago.
The smallest part of an element.
The mass of a substance divided by its volume.
The change of state from solid to liquid.

Down

A small charged particle found rotating around the nucleus of an atom.
The amount of solute that dissolves in a given quantity of solvent.
An unreactive element found in group 0 of the periodic table.
A charged particle found in the nucleus of an atom.
The central section of an atoms which contains protons, neutrons and electrons.

10 Clues: The smallest part of an element. • The change of state from solid to liquid. • The mass of a substance divided by its volume. • A charged particle found in the nucleus of an atom. • An unreactive element found in group 0 of the periodic table. • The amount of solute that dissolves in a given quantity of solvent. • ...

chemistry 2019-04-30

Across

reaction of the release of heat
change a irreversible chemical reaction involving the arrangement of one or more atoms
rapid chemical reaction involving oxygen causing heat and light
chemical reaction with two soluble salts in aqueous solution
something that changes during a reaction

Down

chemical reaction with acid and salt
reaction accompanied by heat
smallest particle of a chemical element
change the matter is altered but never changed
a substance that is produced during a natural,chemical or manufactured process

10 Clues: reaction accompanied by heat • reaction of the release of heat • chemical reaction with acid and salt • smallest particle of a chemical element • something that changes during a reaction • change the matter is altered but never changed • chemical reaction with two soluble salts in aqueous solution • rapid chemical reaction involving oxygen causing heat and light • ...

Chemistry 2019-04-30

Across

CHANGE When a chemical gets a new look in its appearance thus becoming something completely different e.g. Oxygen & Ice.
The releasing of energy outside the body of an object resulting in expulsion of matter.
A common Chemical phenomena which results in heat being generated and thus being exerted outwards.
Disabling a product by counteracting the effects of it and preventing it from having a deeply violent reaction.
The result of a chemical change which leads to a direct result of combining two specific elements into a new one.
Most minute particle of an element consisting of three objects: Protons, Electrons, and Neutrons; and being made up of a nucleus and atomic number.

Down

The result of falling condensation thus becoming things such a hail, sleet, snow and rain.
CHANGE The metamorphosis of two completely different elements thus procuring a brand new element from the transfusion.
The process of the absorption of heat from a combustible object and also opposite of endothermic.
A type of substance which undergoes a change thus resulting in a chemical change as they are the starters of it.

10 Clues: The releasing of energy outside the body of an object resulting in expulsion of matter. • The result of falling condensation thus becoming things such a hail, sleet, snow and rain. • The process of the absorption of heat from a combustible object and also opposite of endothermic. • ...

chemistry 2019-03-26

Across

positively charged subatomic particle
number of protons
negatively charged subatomic particle
a mixture of different compounds
smallest part of an element
a substance with the same number of protons

Down

number of protons and neutrons
two or more atoms chemically bonded together
two or more elements chemically combined together in a fixed ratio
neutrally charged subatomic particle

10 Clues: number of protons • smallest part of an element • number of protons and neutrons • a mixture of different compounds • neutrally charged subatomic particle • positively charged subatomic particle • negatively charged subatomic particle • a substance with the same number of protons • two or more atoms chemically bonded together • ...

chemistry 2020-09-13

Across

The number of protons in an atom
A negative ion is known as?
loose electrons during a chemical reaction
the smallest unit of matter?
Electrons orbit the nucleus of an atom in?

Down

stable subatomic particle with a charge of negative electricity
horizontal rows
A positive ion known as?
the number of neutrons and protons in the nucleus of an atom
Vertical columns

10 Clues: horizontal rows • Vertical columns • A positive ion known as? • A negative ion is known as? • the smallest unit of matter? • The number of protons in an atom • loose electrons during a chemical reaction • Electrons orbit the nucleus of an atom in? • the number of neutrons and protons in the nucleus of an atom • stable subatomic particle with a charge of negative electricity

Chemistry 2020-04-28

Across

Amino acid posses amino and ________ group.
What is the type of redox reaction when Eocell value is positive?
How does electron withdrawing groups (EWG) affecting the basic strength?
What is the type of rate that is determined over a period of time?
What group replaces hydrogen atom(s) in ammonia to produce amines?
A process to form amino acids from peptides.

Down

What apparatus can be used to measure cell potential?
At nonstandard conditions, what equation describes the standard cell potential?
What reaction of amines produces amides?
If an element has greater Standard Electrode Potential value, it is easier to undergo oxidation or reduction?

10 Clues: What reaction of amines produces amides? • Amino acid posses amino and ________ group. • A process to form amino acids from peptides. • What apparatus can be used to measure cell potential? • What is the type of redox reaction when Eocell value is positive? • What is the type of rate that is determined over a period of time? • ...

Chemistry 2020-05-07

Across

Alkaline hydrolysis of esters is_________
In alumino- thermic process , aluminium acts as _____________agent.
Glass is __________liquid
PH of coco- cola is ______(acidic/basic)
LPG gas used for cooking purposes contains __________

Down

Sea divers use mixture of _____________and O2 gas.
Bakelite is obtained from ________ and formaldehyde.
Cobalt is mainly found in Nepal in which district ______
In any given orbital electron fill up in increasing order of energy it is known as ____________principle
Percentage of air in Air Gel is _________(In word and hyphen required)

10 Clues: Glass is __________liquid • PH of coco- cola is ______(acidic/basic) • Alkaline hydrolysis of esters is_________ • Sea divers use mixture of _____________and O2 gas. • Bakelite is obtained from ________ and formaldehyde. • LPG gas used for cooking purposes contains __________ • Cobalt is mainly found in Nepal in which district ______ • ...

Chemistry 2020-11-19

Across

positive electrode
positive or negative charged atom
a compound that has been melted
Chemicals going into a reaction
negative electrode

Down

inert probe used in electrolysis
gain electron to become negative
produced from a reaction
lose electron to become positive
two or more elements chemically bonded together

10 Clues: positive electrode • negative electrode • produced from a reaction • a compound that has been melted • Chemicals going into a reaction • inert probe used in electrolysis • gain electron to become negative • lose electron to become positive • positive or negative charged atom • two or more elements chemically bonded together

Chemistry 2021-01-04

Across

the smallest part of an element/building block
positively charged part of an atom
is a pure substance that is mad of the same atom
Has definite shape and volume
neutral part o an atom

Down

tells us the mass of the protons and neutrons
tells us the number of protons
negatively charged part of an atom
has definite volume but no definite shape
has no definite shape or volume

10 Clues: neutral part o an atom • Has definite shape and volume • tells us the number of protons • has no definite shape or volume • positively charged part of an atom • negatively charged part of an atom • has definite volume but no definite shape • tells us the mass of the protons and neutrons • the smallest part of an element/building block • ...

Chemistry 2021-09-02

Across

- represents a compound; represented by symbols and subscripts
- may increase or decrease during a chemical change (hot or cold)
- pure substance; combines 2 or more elements and is represented by a chemical formula
- a pure substance that cannot be broken down into another substance
- bubbles produced during a chemical reaction
- anything that has mass and takes up space

Down

- represents the name of an element; written with a capital letter and sometimes a lower case letter
- # after chemical symbol in a formula; tells you the number of atoms present for each element in a formula
- the smallest particle of an element
- a solid substance that appears during a chemical reaction

10 Clues: - the smallest particle of an element • - anything that has mass and takes up space • - bubbles produced during a chemical reaction • - a solid substance that appears during a chemical reaction • - represents a compound; represented by symbols and subscripts • - may increase or decrease during a chemical change (hot or cold) • ...

Chemistry 2021-07-21

Across

mixing of oppositely charged sols neutralise their charges
action done during peptization to convert precipitate into a colloid
ion responsible for the neutralisation of charge
minimum conc. of an electrolyte in millimoles/litre causing precipitation of sol
reason for preferential adsorption

Down

potential difference between the fixed layer and diffused layer of opp charges
another name for coagulation
settling down of particles
conversion of precipitate to colloid
two layers of opposite charges around the colloidal particle

10 Clues: settling down of particles • another name for coagulation • reason for preferential adsorption • conversion of precipitate to colloid • ion responsible for the neutralisation of charge • mixing of oppositely charged sols neutralise their charges • two layers of opposite charges around the colloidal particle • ...

chemistry 2021-02-14

Across

This separates solids in suspension in a liquid by letting them move across another material with a large surface area.
This involves passing the mixtures through a filter, which retains one of the components (e.g sand and water)
the conversion of a vapour or gas to a liquid.
the removal of contaminants from water.
remaining after the greater part or quantity has gone.
homogeneous or heterogeneous mixture of metals

Down

the process of turning from a liquid into vapour.
the process of separating components of a mixture based on different boiling points.
a mixture in which the particle size of the disintegrated substance is so small that it appears to be homogeneous.
also known as freezing is a phase change of matter that results in the production of a solid

10 Clues: the removal of contaminants from water. • the conversion of a vapour or gas to a liquid. • homogeneous or heterogeneous mixture of metals • the process of turning from a liquid into vapour. • remaining after the greater part or quantity has gone. • the process of separating components of a mixture based on different boiling points. • ...

Chemistry 2021-04-14

Across

the amount of electrons on the outermost layer
anything that has mass and matter
a substance composed of two or more elements
Smallest unit of an element

Down

the ability to reflect light
the ability to be hammered into thin sheets
number in front of the chemical formula
how reactive an element is
center of an atom that has protons,neutrons,and electrons
the study of how atoms form new substances by interacting with each other

10 Clues: how reactive an element is • Smallest unit of an element • the ability to reflect light • anything that has mass and matter • number in front of the chemical formula • the ability to be hammered into thin sheets • a substance composed of two or more elements • the amount of electrons on the outermost layer • center of an atom that has protons,neutrons,and electrons • ...

Chemistry 2021-04-15

Across

the proton is a positive electric charge.
a stable subatomic particle with a charge of negative electricity.
Electron: a valence electron is an outer shell electron that is associated with an atom.
Chemistry is the scientific discipline involved with elements.
Levels: Energy levels (also called electron shells) are fixed distances from the nucleus of an atom where electrons may be found.
the basic unit of a chemical element.

Down

a subatomic particle of about the same mass as a proton but without an electric charge.
the central part of an atom that comprises nearly all of the atomic mass and that consists of protons and neutrons.
reaction: 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.
Cloud: An electron cloud is the region of negative charge surrounding an atomic nucleus that is associated with an atomic orbital.

10 Clues: the basic unit of a chemical element. • the proton is a positive electric charge. • Chemistry is the scientific discipline involved with elements. • a stable subatomic particle with a charge of negative electricity. • a subatomic particle of about the same mass as a proton but without an electric charge. • ...

Chemistry 2021-04-14

Across

materials which have a conductivity between conductors
a substance that takes part in and undergoes change during a reaction.
is a substance that is formed as the result of a chemical
any of the four substances air, water, fire, and earth formerly believed to compose the physical universe

Down

fixed distances from the nucleus of an atom where electrons may be found
weighted average of all of the isotopes of that element
a multiplier or factor that measures some property.
everything around you
natural materials that do not produce heat
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.

10 Clues: everything around you • natural materials that do not produce heat • a multiplier or factor that measures some property. • materials which have a conductivity between conductors • weighted average of all of the isotopes of that element • is a substance that is formed as the result of a chemical • a substance that takes part in and undergoes change during a reaction. • ...

chemistry 2021-04-29

Across

a stable subatomic particle with a charge of negative electricity.
a gentle sheen or soft glow.
the basic unit of a chemical element.
a subatomic particle of about the same mass as a proton, but without any electric charge

Down

a stable subatomic particle with a positive charge.
whose properties are intermediate between those of metals and solid nonmetals or semiconductors
a set of elements occupying an entire horizontal row in the periodic table.
easy to break or shatter easily.
any substance that has mass and takes up space by having volume.
a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction

10 Clues: a gentle sheen or soft glow. • easy to break or shatter easily. • the basic unit of a chemical element. • a stable subatomic particle with a positive charge. • any substance that has mass and takes up space by having volume. • a stable subatomic particle with a charge of negative electricity. • ...

Chemistry 2021-04-30

Across

When you hit a metal, it makes a sound.
Using litmus paper, results are blue.
A substance that has no acid or alkali.
A substance that can melt your skin.
Something that can easily break.

Down

It may dissolve or burn your skin and materials.
It contains dangerous organisms such as bacteria.
table- Something that has 118 elements.
Is always around us.
Mixtures of metal.

10 Clues: Mixtures of metal. • Is always around us. • Something that can easily break. • A substance that can melt your skin. • Using litmus paper, results are blue. • table- Something that has 118 elements. • When you hit a metal, it makes a sound. • A substance that has no acid or alkali. • It may dissolve or burn your skin and materials. • ...

Chemistry 2023-02-13

Across

- saliktas olbaltumvielas
- ir dzīvo organismu pamatvielas, dabiski lielmolekulāri savienojumi - polipeptīdi, kas veidoti no aminoskābju atlikumiem
- ir biomolekulas, kuras katalizē (palielina reakciju tempu) ķīmiskas reakcijas
- vienkarši olbaltumvielas

Down

- iedala 3 grupās (saharīdu grupas)
- trīsvērtīgā spirta un augstāko karbonskābju esteri
- škidrie tauki
- ir caurspīdīgs, bezkrāsains, viskozs šķidrums ar saldu garšu.
- cits nosaukums ir vīnogu cukurs
- ir visai daudzveidīga bioorganisko vielu grupa

10 Clues: - škidrie tauki • - saliktas olbaltumvielas • - vienkarši olbaltumvielas • - cits nosaukums ir vīnogu cukurs • - iedala 3 grupās (saharīdu grupas) • - ir visai daudzveidīga bioorganisko vielu grupa • - trīsvērtīgā spirta un augstāko karbonskābju esteri • - ir caurspīdīgs, bezkrāsains, viskozs šķidrums ar saldu garšu. • ...

Chemistry 2023-01-17

Across

subatomic particle with a positive charge
row and columns of chemical elements
a particel of matter that uniquely defines an element
substance changes into an entirely new substance
subatomic particles with a negative charge

Down

only the appearance changes
a subatomic particle with no charge
symbol for Na
oppoasite of a base
gold,Copper, Iron

10 Clues: symbol for Na • gold,Copper, Iron • oppoasite of a base • only the appearance changes • a subatomic particle with no charge • row and columns of chemical elements • subatomic particle with a positive charge • subatomic particles with a negative charge • substance changes into an entirely new substance • a particel of matter that uniquely defines an element

Chemistry 2023-04-14

Across

A substance that consists of atoms that all have the same number of protons
Neutral charge (no charge) Mass 1
Ability to react with other elements
The electrons in the energy level

Down

Anything that has mass and takes up space (has volume)
Positive charge Mass of 1
Negative charge Mass of 0
Was developed based on the physical and chemical properties of the known elements
The Smallest unit of matter
Center of a atom

10 Clues: Center of a atom • Positive charge Mass of 1 • Negative charge Mass of 0 • The Smallest unit of matter • Neutral charge (no charge) Mass 1 • The electrons in the energy level • Ability to react with other elements • Anything that has mass and takes up space (has volume) • A substance that consists of atoms that all have the same number of protons • ...

Chemistry 2023-04-14

Across

A subatomic particle located in the nucleus that has a positive charge
The number on the top of each element, also tells us the amount of protons
The ability to break or snap very easily
The characteristic of a metal with the ability to shine
the cloud surrounding the nucleus in an atom
a table arranged in a specific order that shows us every element and their characteristics using numbers, groups, and periods

Down

an object that easily transfers energy(mostly heat)
Located in the electron cloud, this subatomic particle has a negative charge and weighs barely anything
an object that possesses characteristics of both metals and non-metals
the outermost electron in the electron cloud

10 Clues: The ability to break or snap very easily • the outermost electron in the electron cloud • the cloud surrounding the nucleus in an atom • an object that easily transfers energy(mostly heat) • The characteristic of a metal with the ability to shine • A subatomic particle located in the nucleus that has a positive charge • ...

chemistry 2023-04-17

Across

group of atoms
equations of chemical
before the yield sign
smallest unit of measurement
shows how many atoms are in a compond
arrow
matter cant be destroyed or created only changed

Down

number n front of chemical formula
changes one set of chemical equations into another
after the yield sign

10 Clues: arrow • group of atoms • after the yield sign • equations of chemical • before the yield sign • smallest unit of measurement • number n front of chemical formula • shows how many atoms are in a compond • matter cant be destroyed or created only changed • changes one set of chemical equations into another

Chemistry 2023-03-30

Across

The property of sulphuric acid that is used to maintain the appearance and colour of the products
The production of sulfuric acid involves the emission of sulfur dioxide and this gas has what type of impact
The Subject we are studying
One of the ways sulphuric acid is used for food preservation
The compound the dilution of Sulphur trioxide in sulphuric acid forms

Down

Sulfuric acid wide use in the production of fertilizers plays a crucial role in this sector
The first compound produced in the contact process
One of the Industries sulfuric Acid is used in
The modern industrial method of producing sulfuric acid.
The compound used in excess in the first step of the contact process

10 Clues: The Subject we are studying • One of the Industries sulfuric Acid is used in • The first compound produced in the contact process • The modern industrial method of producing sulfuric acid. • One of the ways sulphuric acid is used for food preservation • The compound used in excess in the first step of the contact process • ...

Chemistry 2023-04-25

Across

protons + neutrons
inventor of periodic table
consists of protons and neutrons
positively charged particle
neutrally charged particle

Down

one or two letters than represent an element
electron in the outer shell
basic unit of a chemical element
number of protons in nucleus
negatively charged particle

10 Clues: protons + neutrons • inventor of periodic table • neutrally charged particle • electron in the outer shell • negatively charged particle • positively charged particle • number of protons in nucleus • basic unit of a chemical element • consists of protons and neutrons • one or two letters than represent an element

Chemistry 2023-05-18

Across

/ Has a weight of 65.380
/ People have made lots of jewelery with this
/ Found in glow sticks
/ Part of the Alkaline Earth Metals
/ Found in milk, cheese, etc.
/ Needed on a daily basis to survive

Down

/ Has a weight of 91.224
/ Is part of the Alkali Metals
/ Atomic number is two
/ Used to clean pools

10 Clues: / Used to clean pools • / Has a weight of 91.224 • / Atomic number is two • / Found in glow sticks • / Has a weight of 65.380 • / Is part of the Alkali Metals • / Found in milk, cheese, etc. • / Part of the Alkaline Earth Metals • / Needed on a daily basis to survive • / People have made lots of jewelery with this

Chemistry 2023-05-27

Across

For welding and cutting
Hydrocarbons having a ring structure in them
Hydrocarbons having a straight chain structures with no ring in them
Contains a carbon-carbon triple bond (C=C)
Used as precusor to polypropylene resins, butylene oxide and butanone

Down

Used as a softener for paper and fiber
Preservation of biological specimens
Disinfectant in household cleaners and in moutwash
A natural gas use as fuel
A rocket fuel for space craft intended for low Earth orbit

10 Clues: For welding and cutting • A natural gas use as fuel • Preservation of biological specimens • Used as a softener for paper and fiber • Contains a carbon-carbon triple bond (C=C) • Hydrocarbons having a ring structure in them • Disinfectant in household cleaners and in moutwash • A rocket fuel for space craft intended for low Earth orbit • ...

Chemistry 2023-06-22

Across

Who discovered the ozone hoke
one of the three rs
most used material in the world
who invented fractional distillation
slabs of iron
unsustainable resources

Down

Who discovered climate change
can be re used
one of the three rs
what cou try polluted the most
one of the three rs
what is the most reactive metal

12 Clues: slabs of iron • can be re used • one of the three rs • one of the three rs • one of the three rs • unsustainable resources • Who discovered climate change • Who discovered the ozone hoke • what cou try polluted the most • most used material in the world • what is the most reactive metal • who invented fractional distillation

Chemistry 2013-12-09

Across

Substance that has a pH less than 7
Substance that cannot be broken down into any simpler substance by chemical means
Atom or group of atoms with a negative charge or positive charge
Smallest particle in matter
Chemical reaction in which a compound or element rapidly combines with oxygen gas

Down

combination of pure substances
Subatomic particle that has a negative charge of 1-
Subatomic particle that is neutral
Anything that has mass and takes up space (has volume)
Substance that has a pH greater than 7

10 Clues: Smallest particle in matter • combination of pure substances • Subatomic particle that is neutral • Substance that has a pH less than 7 • Substance that has a pH greater than 7 • Subatomic particle that has a negative charge of 1- • Anything that has mass and takes up space (has volume) • Atom or group of atoms with a negative charge or positive charge • ...

Chemistry 2014-05-10

Across

Refers to how many particles can be packed into a given space
When a liquid becomes a gas, the particles are __________ away compared to when they were organised as a liquid.
Gases ________ when they are heated because they are moving faster and hitting the side of the contained with more force.
When atoms group together, these are called__________.
Materials that are less dense than others will __________.
When particles are heated, they are given more energy. As a result, particles will vibrate ________.

Down

When a chemical reaction takes place, the atoms ___________ themselves to make new substance
When perfume is sprayed in the corner of a room, the people on the opposite side of the room will eventually be able to smell the scent of the perfume. This is a result of a process called_________.
No matter what state (solid, liquid or gas) particles are always
Atoms ________ be created or destroyed

10 Clues: Atoms ________ be created or destroyed • When atoms group together, these are called__________. • Materials that are less dense than others will __________. • Refers to how many particles can be packed into a given space • No matter what state (solid, liquid or gas) particles are always • ...

Chemistry 2014-10-08

Across

rows of the periodic table
the smallest part of the element that contains all the element's properties
is a pure substance that is made from more than two or more substances
the outermost shell of the electron
something that can not be broken down any further
positively charged particles in the atom

Down

lithium, sodium, potassium
neutral particles in the nucleolus of the atom
group of atoms that has lost or gained electrons
pure

10 Clues: pure • lithium, sodium, potassium • rows of the periodic table • the outermost shell of the electron • positively charged particles in the atom • neutral particles in the nucleolus of the atom • group of atoms that has lost or gained electrons • something that can not be broken down any further • is a pure substance that is made from more than two or more substances • ...

Chemistry 2015-11-19

Across

Kind of container for waste
manipulation table
piece of clothes to protect in a lab
element Makes 21% of our atmosphere
particle neutral in the nucleus
element in the fluorescent lamps

Down

particle positive in the nucleus
particle negative which tourn around the nucleus
a tool used for watch tiny things
a tool for measuring volume

10 Clues: manipulation table • Kind of container for waste • a tool for measuring volume • particle neutral in the nucleus • particle positive in the nucleus • element in the fluorescent lamps • a tool used for watch tiny things • element Makes 21% of our atmosphere • piece of clothes to protect in a lab • particle negative which tourn around the nucleus

chemistry 2016-03-17

Across

a positive unit or subatomic particle that has a positive charge
a subatomic particle with a net charge that is negative
Group 7 on the Periodic Table and are all non-metals
earth metals the metals of Group 2 on the periodic table
metal elements that have incomplete d sub-shells, but also may be referred to as the d-block elements

Down

a neutral unit or subatomic particle that has no net charge
a substance possessing both the properties of metals and non-metals
metals the metals of Group 1 on the periodic table
a molecule that has gained or lost one or more electrons
gases group 18 elements, those whose outer electron shell is filled

10 Clues: metals the metals of Group 1 on the periodic table • Group 7 on the Periodic Table and are all non-metals • a subatomic particle with a net charge that is negative • earth metals the metals of Group 2 on the periodic table • a molecule that has gained or lost one or more electrons • a neutral unit or subatomic particle that has no net charge • ...

Chemistry 2017-02-17

Across

negative charge
Electrons with not a lot of mass and take up most space
Number of Protons and Neutrons
Where the protons and neutrons are held

Down

Electrons on the outer most shell
element with atomic number 5
Number of Protons=Number of electrons
positive charge
Where there is a complete outer shell
element with atomic mass 40 that has 2 valance electrons

10 Clues: positive charge • negative charge • element with atomic number 5 • Number of Protons and Neutrons • Electrons on the outer most shell • Number of Protons=Number of electrons • Where there is a complete outer shell • Where the protons and neutrons are held • Electrons with not a lot of mass and take up most space • element with atomic mass 40 that has 2 valance electrons

chemistry 2017-02-17

Across

about the same mass of a proton
physical substance
a central and most important part of a element
mass cannot be created or destroyed
The ability to be stretched into a thin wire

Down

capable of being shaped
something manufactured or refined to scale
a concrete large body of matter
a participial with a negative charge
basic unit of a chemical element

10 Clues: physical substance • capable of being shaped • about the same mass of a proton • a concrete large body of matter • basic unit of a chemical element • mass cannot be created or destroyed • a participial with a negative charge • something manufactured or refined to scale • The ability to be stretched into a thin wire • a central and most important part of a element

Chemistry 2017-02-07

Across

when a solid material can stretch.
a refined substance or item.
a change that doesn't change the state of matter for the item undergoing the change.
something that indicates the state or level of something.

Down

a substance that undergoes a change.
how quickly something disolves.
A broup of atoms bonded together.
an undoable change that changes the state of something.
Solid, liquid, and gas are the three ______.
the physical property of matter.

10 Clues: a refined substance or item. • how quickly something disolves. • the physical property of matter. • A broup of atoms bonded together. • when a solid material can stretch. • a substance that undergoes a change. • Solid, liquid, and gas are the three ______. • an undoable change that changes the state of something. • something that indicates the state or level of something. • ...

Chemistry 2016-07-15

Across

HEAT THE BIG ALKANE UNTIL IT BREAKS IN TO TWO
BONDING NON-METAL+NON-METAL
BONDING METAL+NON-METAL
IS THE BOTTOM NUMBER OF PERDODIC TABLE TABLE PROTON=ELECTRON
REACTS WITH OXYGEN TO FORM CARBON DIOXIDE AND WATER

Down

METALS ALKALI METALS HAVE LOW MELTING POINTS AND BOILING POINTS
CALCUIM TO SLAKED LIME TO LIMEWATER TO?
LESS REACTIVE
MORE REACTIVE THAN ALUMINIUM LESS REACTIVE THAN POTASSIUM
IS THE TOP NUMBER OF PERIODIC TABLE PROTON+NEUTRON

10 Clues: LESS REACTIVE • BONDING METAL+NON-METAL • BONDING NON-METAL+NON-METAL • CALCUIM TO SLAKED LIME TO LIMEWATER TO? • HEAT THE BIG ALKANE UNTIL IT BREAKS IN TO TWO • IS THE TOP NUMBER OF PERIODIC TABLE PROTON+NEUTRON • REACTS WITH OXYGEN TO FORM CARBON DIOXIDE AND WATER • MORE REACTIVE THAN ALUMINIUM LESS REACTIVE THAN POTASSIUM • ...

Chemistry 2022-04-05

Across

only one product is formed, usually only two reactants
the ratio of the actual yield to the theoretical yield, multiplied by 100
calculations involving the mass relationships of elements in compounds
the substance that holds back the product from being fully produced

Down

One element replaces its a similar element in a compound, also known as "home wreckers"
A reaction that always produces H20 and CO2
the process in which an electric current is used to produce a chemical reaction, such as the decomposition of water
a compound breaks down into two or more elements
how much is actually produced in a reaction
the substance that is not used up completely in a reaction

10 Clues: A reaction that always produces H20 and CO2 • how much is actually produced in a reaction • a compound breaks down into two or more elements • only one product is formed, usually only two reactants • the substance that is not used up completely in a reaction • the substance that holds back the product from being fully produced • ...

Chemistry 2021-12-03

Across

A mixture when one substance dissolves another
Building blocks of protein
Tiny particles that all matter is made of
Makes up 78% of the air we breathe
Mixture of metals

Down

The study of what substances are made of
Negatively charged subatomic particles
The Centre of an atom
the substance in which the solute dissolves
The first column on the periodic table

10 Clues: Mixture of metals • The Centre of an atom • Building blocks of protein • Makes up 78% of the air we breathe • Negatively charged subatomic particles • The first column on the periodic table • The study of what substances are made of • Tiny particles that all matter is made of • the substance in which the solute dissolves • A mixture when one substance dissolves another

Chemistry 2021-12-07

Across

CIO3 (-)
IO3 (-)
CNO (-)
SO4 (2-)
CO3 (2-)

Down

HSO4 (-)
OH (-)
NO3 (-)
IO (4 -)
BrO3 (-)

10 Clues: OH (-) • NO3 (-) • IO3 (-) • CNO (-) • CIO3 (-) • HSO4 (-) • IO (4 -) • SO4 (2-) • CO3 (2-) • BrO3 (-)

Chemistry 2022-01-10

Across

Isotopes have a different number of..?
What type of energy is needed to start a reaction
What must occur between particles to react?
What type of test is used to identify metal ions?
Substances that only contain one thing are considered what?

Down

What is formed when halogens react with alkali metals?
How reactive are Group 1 metals
Ions with opposite charges form what type of bond?
Biological catalysts
Iron reactions with oxygen and what else to form rust?

10 Clues: Biological catalysts • How reactive are Group 1 metals • Isotopes have a different number of..? • What must occur between particles to react? • What type of energy is needed to start a reaction • What type of test is used to identify metal ions? • Ions with opposite charges form what type of bond? • What is formed when halogens react with alkali metals? • ...

chemistry 2022-01-07

Across

different mixed
non solid
movement
microscopic
metal variety
invisible and light

Down

solid single
tension weight
same matching
measurement

10 Clues: movement • non solid • microscopic • measurement • solid single • same matching • metal variety • tension weight • different mixed • invisible and light

chemistry 2022-05-05

Across

speeds up chemical reaction
Group 0 elements
The speed at which the amount of reactants decreases or the amount of products increases
is a metal
when particles collide

Down

Biological catalysts, usually consisting of proteins
group 7 elements
Force exerted over an area.
7 electrons in outer shell
orange brown colour

10 Clues: is a metal • group 7 elements • Group 0 elements • orange brown colour • when particles collide • 7 electrons in outer shell • Force exerted over an area. • speeds up chemical reaction • Biological catalysts, usually consisting of proteins • The speed at which the amount of reactants decreases or the amount of products increases

Chemistry!! 2022-04-13

Across

the simplest structural unit of an element or compound
is an atom or molecule that has gained or lost one or more electrons.
the smallest component of an element
electron are the atom's outermost electrons.
is a group of elements sharing similar properties.
a subatomic particle with zero charge

Down

a stable particle with positive charge
A negatively charged particle that comprises the external part of the atom
a row (left to right) of the periodic table.
relating to or containing an alkali

10 Clues: relating to or containing an alkali • the smallest component of an element • a subatomic particle with zero charge • a stable particle with positive charge • a row (left to right) of the periodic table. • electron are the atom's outermost electrons. • is a group of elements sharing similar properties. • the simplest structural unit of an element or compound • ...

chemistry 2022-02-06

Across

yang digunakan sebagai bahan badan pesawat terbang
dalam bahasa arab berarti abu
yang bersifat metaloid pada periode ketiga
logam yang jika bereaksi dengan air akan menimbulkan letupan
unsur terdapat dalam golongan gas mulia

Down

merupakan proses pada logam Aluminium
adalah nama mineral besi
sebagai pengisi balon udara
artinya sukar bereaksi
zat radioaktif yang digunakan sebagai terapi kangker

10 Clues: artinya sukar bereaksi • adalah nama mineral besi • sebagai pengisi balon udara • dalam bahasa arab berarti abu • merupakan proses pada logam Aluminium • unsur terdapat dalam golongan gas mulia • yang bersifat metaloid pada periode ketiga • yang digunakan sebagai bahan badan pesawat terbang • zat radioaktif yang digunakan sebagai terapi kangker • ...

Chemistry 2022-04-13

Across

High electrical conductivity,luster,and malleability
chemical element that forms a simple substance having properties between those of a typical metal and a typical nonmetal
Negative charge, has no mass
A proton charge
where the electrons are located

Down

chemical element that generally lacks metallic items
An electron charge
Make up all matter in the universe
The location of protons and neutrons
A substance that consists of atoms that all have the same number of protons

10 Clues: A proton charge • An electron charge • Negative charge, has no mass • where the electrons are located • Make up all matter in the universe • The location of protons and neutrons • chemical element that generally lacks metallic items • High electrical conductivity,luster,and malleability • A substance that consists of atoms that all have the same number of protons • ...

chemistry 2022-04-13

Across

a process that involves rearrangement
chemical bond if the outer shell nucleus
negative charge
neutral charge

Down

amount of energy that a system described
the system of electron
positive charge
the horizontal rows of the periodic
periodic table same chemical elements
source of nuclear energy

10 Clues: neutral charge • positive charge • negative charge • the system of electron • source of nuclear energy • the horizontal rows of the periodic • a process that involves rearrangement • periodic table same chemical elements • amount of energy that a system described • chemical bond if the outer shell nucleus

Chemistry 2022-05-11

Across

tequila is made from this plant
the second greatest fruit of all time
the greatest fruit of all time
area where electrons hang out
noble gases are considered this
man's best friend

Down

electrons in last energy levels
positive part of atom
negative particle of atom
neutral part of atom

10 Clues: man's best friend • neutral part of atom • positive part of atom • negative particle of atom • area where electrons hang out • the greatest fruit of all time • tequila is made from this plant • electrons in last energy levels • noble gases are considered this • the second greatest fruit of all time

chemistry 2023-08-13

Across

the action of being moved apart
the substance that flows freely
a body temperature above normal
particles filling the the whole container
firm and stable in shape

Down

liquid that has gone through a process of filtration
a minute portion of matter
pouring from one container into another
holding as much water as can be absorbed
a substance made by mixing other substances together

10 Clues: firm and stable in shape • a minute portion of matter • the action of being moved apart • the substance that flows freely • a body temperature above normal • pouring from one container into another • holding as much water as can be absorbed • particles filling the the whole container • liquid that has gone through a process of filtration • ...

Chemistry 2023-08-13

Across

a body temperature that is above normal.
liquid that has gone through the process of filtration
the action of being moved apart.
a substance made by mixing other substances together.

Down

a small discrete amount of something.
holding as much water as can be absorbed
pouring from one container into another
particles filling the whole container.
a substance that flows freely.
firm and stable in shape.

10 Clues: firm and stable in shape. • a substance that flows freely. • the action of being moved apart. • a small discrete amount of something. • particles filling the whole container. • pouring from one container into another • holding as much water as can be absorbed • a body temperature that is above normal. • a substance made by mixing other substances together. • ...

chemistry 2023-08-13

Across

particles filling the the whole container
a substance that flows freely
holding as much water as can be absorbed
a small discrete amount of something
a body temperature above normal

Down

firm and stable in shape
liquid that has gone through a process of filtration
a substance made by mixing other substances together
the action of being moved apart
pouring from one container into another

10 Clues: firm and stable in shape • a substance that flows freely • the action of being moved apart • a body temperature above normal • a small discrete amount of something • pouring from one container into another • holding as much water as can be absorbed • particles filling the the whole container • liquid that has gone through a process of filtration • ...

Chemistry 2023-08-16

Across

off periodic table
an element
shiny
easily broken
thing that is composed

Down

stripped into wire
bendy
a combo
building blocks of life
not conductive

10 Clues: bendy • shiny • a combo • an element • easily broken • not conductive • stripped into wire • off periodic table • thing that is composed • building blocks of life

Chemistry 2024-01-08

Across

Building Blocks
Group of Atoms bonded together
Can not be Broken Down Further
Anything that takes up space
Tells us all the elements
Forms Compounds

Down

Substances physically put together
Made up of two or more components chemically
Holds chemicals together
You can tell if it is an element

10 Clues: Building Blocks • Forms Compounds • Holds chemicals together • Tells us all the elements • Anything that takes up space • Group of Atoms bonded together • Can not be Broken Down Further • You can tell if it is an element • Substances physically put together • Made up of two or more components chemically

Chemistry 2024-03-18

Across

it is Brite yellow and crystallizes in cold temperatures
trees produce it
you breth it and is found in fires
it helps with combustion
is there when there is excess oxygen
it is used to power up cars

Down

the strongest flame in an Bunsen burner
leftover after burning
you could die from it if you inhale it or in the same place as it with now glowing oxygen
is a clear liquid and has am earthy smell and taste bitter

10 Clues: trees produce it • leftover after burning • it helps with combustion • it is used to power up cars • you breth it and is found in fires • is there when there is excess oxygen • the strongest flame in an Bunsen burner • it is Brite yellow and crystallizes in cold temperatures • is a clear liquid and has am earthy smell and taste bitter • ...

Chemistry 2024-01-31

Across

the number of protons in the nucleus of an atom
what you end up with in an equation;after the arrow
the least reactive family
a group of elements with similar chemical properties

Down

the most reactive family
the number of protons and neutrons added together
rows of the periodic table
what you start within an equation;before the arrow
An abbreviation for a chemical element
how likely an element is to go through a chemical change

10 Clues: the most reactive family • the least reactive family • rows of the periodic table • An abbreviation for a chemical element • the number of protons in the nucleus of an atom • the number of protons and neutrons added together • what you start within an equation;before the arrow • what you end up with in an equation;after the arrow • ...

Chemistry 2024-02-08

Across

chemical compound that contains a carbon–hydrogen or carbon–carbon bond
chemical formula for a compound existing as discrete molecules that gives the total number of atoms of each element in a molecule
alkane-derived organic compounds that contain the carboxylate functional group
organic compound consisting of hydrogen and carbon found in crude oil, natural gas, and coal.
unsaturated hydrocarbons containing a double bond

Down

a type of empirical formula that represents the composition of any member of an entire class of compounds
large molecules made by bonding (chemically linking) a series of building blocks
a family of hydrocarbons with similar chemical properties who share the same general formula
a series of compounds that contain carbon and hydrogen atoms with single covalent bonds
organic compounds that contain nitrogen atoms with a lone pair

10 Clues: unsaturated hydrocarbons containing a double bond • organic compounds that contain nitrogen atoms with a lone pair • chemical compound that contains a carbon–hydrogen or carbon–carbon bond • alkane-derived organic compounds that contain the carboxylate functional group • large molecules made by bonding (chemically linking) a series of building blocks • ...

chemistry 2024-04-22

Across

A column on the periodic table
protons and neutrons
make or produce
Number of protons
dissolvable
A pure substance made of only one kind of atom

Down

A substance produced in a chemical reaction
flexible
A homogeneous mixture
Basic unit of matter

10 Clues: flexible • dissolvable • make or produce • Number of protons • protons and neutrons • Basic unit of matter • A homogeneous mixture • A column on the periodic table • A substance produced in a chemical reaction • A pure substance made of only one kind of atom

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