chemistry Crossword Puzzles

11 Clues: 3 • 1 • 2 • 8 • 5 • 4 • 9 • 8 • 10 • 11 • 12

9 Clues: - kémia • - fizika • - rajzóra • - tornaóra • - földrajz • - biológia • - matematika • - történelem • - informatikaóra

15 Clues: Describes an event. • A known truth about something. • The study of the universe beyond earth. • A representation of an object or event. • Involves changes that are part of chemistry. • The part of an experiment that's being tested. • The part of the experiment that stays the same. • The use of knowledge to solve practical problems. • ...

15 Clues: - Study of water on earth • - Study of reptiles and amphibians • - Study of viruses and viral diseases • - Study of the blood and blood diseases • - Study of Earth's moon and its geology • - Study of earthquakes and seismic waves • - Study of plants and everything about them • - The study of living things and everything about it • ...

9 Clues: ICT • tie • art • shoes • socks • cantine • classroom • chemistry • playground

9 Clues: - uczeń • - chemia • - piórnik • - ściągać • - biologia • - plastyka • - długopis • - podręcznik • - słownictwo

9 Clues: - фзк • - изо • - химия • - физика • - История • - биология • - география • - английский • - математика

12 Clues: good • iron • mass • within • beyond • turn, change • scripts, writing • staying, not moving • sharp, acid, oxygen • only one type of atom • dealing with chemistry • multiple elements combined

12 Clues: good • iron • mass • within • beyond • turn, change • scripts, writing • staying, not moving • sharp, acid, oxygen • only one type of atom • dealing with chemistry • multiple elements combined

15 Clues: 화학 • 도서관 • 연습, 훈련 • ~에 기초하여 • 바로 후, 직후 • 범주, 카테고리, • 진로, 경력, 직업 • bit 약간, 조금 • 규칙적으로, 일정하게 • ~를 강조하다, 역설하다 • (= priceless ) • 긴 안목으로 보면, 결국은 • ~에게 충고하다, 조언하다 • (= completely) • ~하게 들리다, ~하게 생각되다

15 Clues: end to end • compactness • being correct • amount of space • living organisms • rising or falling • three dimensional • measure of inertia • exact and accurate • physical properties • substances of matter • indicating tempature • process of observing • earths physical structure • application of scientific info

6 Clues: biomass • 9th principle • number of principle • green chemistry also know • first green chemistry principle • an area of chemistry and chemical engineering focused on the design of products and processes that minimize or eliminate the use and generation of hazardous substances.

15 Clues: Able to be used again. • Contaminated or made dirty. • To move from one place to another. • Coming into contact with something. • Substances with a specific composition. • Molecules made up of two or more elements. • Chemicals added to plastics to make them more flexible. • Biologist: A scientist who studies how organisms reproduce. • ...

15 Clues: Device invented by Galileo • He invented the microscope • The gas Lavoisier discovered • The process developed by Bacon • The Father of Modern Chemistry • The science that turned into chemistry • He promoted the idea of mathematization • Theory or solar organization promoted by Ptolemy • Chemist responsible for developing the naming system used • ...

14 Clues: the graduation month for Tech seniors • the amount of space something occupies • a type of energy associated with motion • a characteristic of gases related to motion • The field of science we are studying this year • a characteristic of gases caused by collisions • a decrease in volume will make the pressure ___. • a decrease in temperature will make pressure ___. • ...

14 Clues: small organic molecules • a very long organic molecule • bond holds metal atoms together very strongly • structure how bonds are arranged in a compound • rule atoms tend to gain, lose or share electrons • materials consist of a single element or compound • mixture the composition that is the same throughout • materials consist of two or more elements or compounds • ...

11 Clues: el arte • el taller • el aleman • el espanol • la chimica • el frances • la historia • la biologia • el almuerzo • las ciencias • las matemataicas

11 Clues: Mark Epp • Mark Perry • Matt Linner • Greg Bardal • Sean Brandt • Lara Morrow • Jen Sadoway • Edith Arthur • Jen Schneider • Sarah Gerrard • Kate Rozdilsky

10 Clues: periodic table • a type of fluid • a basic unit of matter • is a pure chemical substance • anything that occupies space • a combination of two substanses • separates particles frm a liquid • is a liquid that dissolves another solid • is an electrically neutral group of two atoms • A substance that is dissolved in a solvent to form a solution

10 Clues: the phase transition of liquid vaporizing • an atom that is defined by its atomic number • the positive side of a dry cell battery or a cell • state of matter which takes the shape of its container • a molecule that has gained or lost one or more electrons • how close a value is to the actual or true value also see precision • ...

10 Clues: radiant energy given of by the sun • a compound made from carbon and hydrogen • starting substance in a chemical reaction • a subatomic particle that has a positive charge (+1) • a subatomic particle that has a negative charge (-1) • a group of atoms usually of different elements that act as one single ion • ...

10 Clues: shatters when hit • the main metal in alloy • a list of all the elements • an alloy of iron and carbon • able to be stretched into wires • able to be hammered into new shapes • shines when polished or freshly cut • A mixture of a non-metal and a metal • a scale for measuring the purity of gold • a mixture of a base metal and small amounts of other elements

10 Clues: law • nh2 • bond • h202 • cycle • ph same • equation • iso point • long word • break water

10 Clues: A substance that flows freely • turning into a liquid from vapor • the smallest particle that exists • changing directly into a vapor when heated • a substace made by mixing other substaces • a substance formed from 2 or more elements • the action of becoming larger or more extensive • the intermingling of substances by the natural movement of their particles. • ...

10 Clues: all elements • tightly packed • a pure substance • no volume or shape • chemical compounds • a mixture of things • basic unit of matter • central core of an atom • something that allows flow • something joined by chemical bond

10 Clues: mass of an atom • smallest particle • produces positive charge • produces negative charge • anything that has mass and volume • total amount of protons and neutron • the number of protons in the nucleus • the amount of space something takes up • a bunch of the same atoms grouped together • has the same mass as a proton but no charge

10 Clues: (n-1)d 1to9 • sharing of electron's • biodegradable polymer • water softening method • battery used in mobiles • discovered by madam curie • Drugs used to lower fever • which connect two half cells • technique to separate compounds • one of the mostabundantelement from 13 group

10 Clues: smallest particle of a chemical element • a stable subatomic particle in all atoms • the emission of energy as electronic waves • a tabular arrangement of the chemical elements • any four substances (earth air fire and water) • the central and most important part of an object • a stable subatomic particle with negative charge • ...

10 Clues: Positive ion • Negative ion • Heavy and neutral particle • An arithmetical value like 4 • It’s in the middle of the atom • Tiny and negatively charged particle • Heavy and positively charged particle • Not supporting or helping either side in a conflict • Any of the four substances (earth, water, air, and fire) • ...

10 Clues: Of the same kind • The brain of the cell • Anything that takes up space • When something changes physically • When something changes chemically • something that provides information • When 2 elements are combined together • The majority of, not the weight but the ______ • A thing that is combind of 2 or more substances • ...

10 Clues: how reactive something is • the compactness of a substance • the basic unit of chemical element • substance that undergoes reactions • physical substance it occupies space • something that can be shaped but not broken • matter usually large with no specific shape • is when something changes but not on the chemical level • ...

10 Clues: smallest component of an element • homogeneous mixture composed of two or more substances • the minor component in a solution, dissolved in the solvent • describes the number of moles of the substance per liter of liquid. • the abundance of a constituent divided by the total volume of a mixture • ...

10 Clues: Energy is ___ matter • The fourth state of matter • There are three _____ of matter • Water and oil are in _____ state • Liquids don't have definite ______ • Everything that has mass and volume • ______ consists of several types of matter • A table, a student, a pen are all in _____ state • _______ matter consists of only one type of matter • ...

10 Clues: Another name for combustion. • One of the greenhouse gases. • Cleaner fuels producing less CO2. • Combustion creating carbon dioxide. • Combustion type due to limited oxygen. • Taken from a fire using a fire blanket. • The colour of a dry powder extinguisher. • Type of chemical reaction producing heat. • Taken from fire with a water extinguisher. • ...

10 Clues: If something can't be dissolved. • A mixture of 2 or more substances • Something you measure things with. • If a liquid substance turns into gas. • Make something back to the original state. • A physical matter of which a thing consists. • Something you can put back into a previous state. • If something breaks down and is absorbed in a liquid. • ...

10 Clues: If something can't be dissolved. • A mixture of 2 or more substances • Something you measure things with. • If a liquid substance turns into gas. • Make something back to the original state. • A physical matter of which a thing consists. • Something you can put back into a previous state. • If something breaks down and is absorbed in a liquid. • ...

10 Clues: main source of energy for the body • carbon bears a formal negative charge • an ion with a positively charged carbon atom • a type of nutrient that you get from your diet • a molecule or ion capable of donating a proton • compound added to a system to cause a chemical reaction • comprised of one or more long chains of amino acid residues • ...

10 Clues: S • H • B • Zn • Ne • Ca • Cl • Au • Ar • Pb

10 Clues: bleach • having a pH below 7 • identifyed by atomic number • The study of chemical reactions • A bond where electrons are shared • a Scale that test for acidic levels • substance that has a PH higher than 7 • An element required for Energy Production • a compound or substance that has been purified or prepared • ...

10 Clues: Jkl • Vwx • Stu • def • Cfa • Pqr • abc • Mno • Yza • Ghi

10 Clues: Simplest hydrocarbon. • Releases hydrogen ions. • Type of bonding in metals. • Speeds up a chemical reaction. • Absorbs heat from surroundings. • Conducts electricity in solution. • Contains only carbon and hydrogen. • The process by which acids and bases neutralize each other. • A substance that changes color in the presence of acids or bases. • ...

10 Clues: A tiny piece of matter. • The smallest unit of an element. • A solution with a pH less than 7. • Two or more atoms bonded together. • A solution with a pH greater than 7. • A substance made up of only one type of atom. • State of matter with no fixed shape or volume. • State of matter with a fixed shape and volume. • A homogeneous mixture of two or more substances. • ...

11 Clues: A substance that can be dissolved • A substance that can be dissolved • A liquid which can dissolve a solute • A substance that cannot be easily separated • A solid substance that can dissolve in water • A solid substance that cannot dissolve in water • A solution in which no more solute can be dissolved • Two or more substances that are chemically joined together • ...

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

10 Clues: Exothermic reaction? • Decomposition reaction? • What is the taste of acids? • What is the common name for CH₄? • What is the hardest natural substance? • What type of bond is found in diamond? • What color does litmus paper turn in a base? • Which non-metal is essential for respiration? • Which element forms the basis of organic chemistry? • ...

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 • ...

10 Clues: solute • colloid • surfactant • efflorescence • nonelectrolyte • aqueoussolution • solubilitycurve • saturatedsolution • homogeneousmixtures • supersaturatedsolution

10 Clues: a group of atoms bonded together • a change of materials into another • a chemical bond between two or more atoms • attraction between oppositely charged ions • shows the elements that make up the compound • sharing of one or more pairs of electrons between two atoms • The smallest part of a substance that cannot be broken down • ...

10 Clues: (a basic part of a whole • (relating to atom or atoms ) • (an ability to transfer energy) • (a basic unit of a chemical element ) • (an amount of matter in a certain space) • (a large amount of matter in a particle or object) • (a substance made by mixing other substances together) • (a stable subatomic particle occuring in all atomic nuclei) • ...

10 Clues: Anything that takes up space. • The number of. atoms of that element. • A small particle with a negative charge. • A small, positively charged particle of matte • A solid material that is typically hard, shiny • The number of protons in the nucleus of an atom • The particles in an atom that have a neutral charge. • ...

10 Clues: Results in a substance • Organizes chemical elements • Doesn't result in a new substance • More than 1 different elements combined • Rows with elements on the periodic table • Columns of elements on the periodic table • Letters for elements on the periodic table • Anything that takes up space and can be weighed • Reaction to temperature change or chemicals added • ...

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 • ...

10 Clues: chemical noble gas • known as natural gas • what we need to breath • makes balloons float in air • univalent poisonous gaseous halogen • sometimes people wear it as jewelry • chemical element with atomatic number 7 • positively charged subatomatic particle • naturally in food and a dietary supplement • can be found in soil and can be crystal at room temp.

10 Clues: The 4th noble gas. • Result of a reaction. • Most reactive non-metal. • A reaction in written form. • Another name for acetylene. • What kind of reactions release heat? • An element with a molecular mass of 16. • The most common element in the universe. • The second element of the periodic table. • In what kind of state is H20 at room temperature?

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 • ...

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. • ...

10 Clues: absorbs energy • releases energy • the yield of the reactants • the "equal sign" of chemistry • The amount of a pure substance • a substance used to speed up the reaction • can cause a heat release, or color change • two or more substances mixed to get a product • can increase with heat, or slow down when cooled • can speed up a chemical reaction or slow it down

10 Clues: what's the composition of diamond • The building element in your bone • 1st element in the periodic table • what's the noxious gas in cigrette • Supporting gas for most of the living creature • It is the name of a planet and also the name of an element • The radiated element that function as source of nuclear fuel • ...

10 Clues: has a neutral charge • has a positive charge • can hold 18 electrons • has a negitive charge • in the center of a atom • can only hold 2 electrons • can only hold 8 electrons • smallest part of an element • where electrons are located • 1 type of atom,know as a pure substance

10 Clues: can hold electricity • shiny and reflective • the center of an atom • a positive electric charge • a row of chemical elements • two elements formed together • reaction a change of physical form • the amount of space an object takes up • the ability to become another object when pressed • a substance that cannot be decomposed into another substance

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 • ...

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 • ...

10 Clues: can bend • Two or more compounds mixed together • horizontal rows on the periodic table • Organizes elements (created by Mendeleev) • Cannot be broken down, located on the periodic table. • 2 or more atoms of different elements bonded together. • vertical columns on the periodic table; elements are similar • ...

10 Clues: neutral charge • pure substance • positive charge • negative charge • barley packed atoms • tightly packed atoms • loosely packed atoms • anything that takes up space • elements chemically combined • 2 or more elements physically combined

10 Clues: table table filled with every element • A kind of matter with uniform properties • Any substance that has mass and takes up space • Substance made by mixing other substances together • A subatomic atom particle that is found in all atoms • Tells you that a change has taken place in a equation • A stable subatomic particle occurring in all atomic nuclei • ...

10 Clues: N2O • NH3 • H2SO4 • KMnO4 • CaCO3 • Karbon dioksida • Besi(III) oksida • Sulfur trioksida • Fosfor pentaklorida • Dinitrogen dioksida

10 Clues: The smallest unit of an element. • A group of atoms bonded together. • A connection between atoms in a molecule. • A table that organizes all known elements. • A pure substance made of only one type of atom. • A substance that accepts hydrogen ions in solution. • A substance that donates hydrogen ions in solution. • ...

10 Clues: The number of protons in an atom. • The number of protons plus neutrons in an atom. • An abbreviation of the chemical name of an element. • A positive subatomic particle in the nucleus of an atom. • A subatomic particle in the nucleus of an atom that has no charge. • The measurement of the size of an atom (includes the nucleus and electron cloud). • ...

10 Clues: Smell. • Ability of matter to burn. • To attract and repel magnetic forces. • A substance’s ability to conduct electricity. • The temperature where a solid turns to a liquid. • The temperature where a liquid changes to a gas. • An observable and measurable physical characteristic. • Substance's ability to be dissolved into another substance. • ...

10 Clues: covalently bonded group of atoms. • an atom that gains or loses an electron. • molecule with oppositely charged regions. • attractive force between two ions with opposite charge. • a covalent bond in which electrons are shared equally by both atoms. • a neutral particle that forms as a result of electron sharing among atoms. • ...

10 Clues: Solute+Solvent • anything that has mass and volume • ex: Proteins, Lipids, carbs , and nucleic acids • a pure substance that cannot be broken down anymore • a negatively charge subatomic particle circling the nucleus in clouds • a subatomic particle without a charge located in the nucleus of an atom • ...

10 Clues: solid material • share electrons • atom or molecule • transfer electrons • force of attraction • positively charged ion • negatively charged ion • group of 2 or more atoms • forming of chemical bonds • lack characteristics of metals

10 Clues: something has been dissolved in water • A substance produced in a chemical reaction. • substance that speeds up the rate of a chemical reaction. • a substance that is in a gaseous, or vaporous, state of matter • is the amount of substance containing the same number of molecules • A chemical substance that is present at the start of a chemical reaction. • ...

10 Clues: after the arrow • before the arrow • atoms can only be • rows on the periodic table • columns on the periodic table • if atoms on both sides are the same • anything that takes up space or has mass • has properties of both metals and non-metals • metals most reactive family on the periodic table • gases the least reactive family on the periodic table

10 Clues: Draws up liquid • Used to measure mass • Used to protect a person's eyes • Metric unit used to measure mass • Used to produce a flame for heating • Used to measure the volume of a liquid • Used to dispense small amounts of liquid • Used to collect gases by water displacement • Used to heat, mix, freeze, and measure substances • ...

11 Clues: Water fearing • Heat given off • Solute + Solvent • Power of Hydrogen • Superheated matter • Least reactive; glows • Proton acceptors; above 7 • Most explosive alkali metal • A fluid’s resistance to flow • Superheated matter; 99% of the universe • Ex: Proteins, lipids, carbs and nucleic acids

10 Clues: mass/volume • water loving • water fearing • solute+ solvent • 99% of our universe • A fluids resistance to flow • proteins,lipids,carbs,nucleic acid • study of matter and how it changes • anything that has mass+ takes up space • pure substance made of one type of atom

10 Clues: Answer to question #2 • Answer to question #1 • The point where all three phases meet • A measure of a fluid's resistance to flow • The strongest of the intermolecular forces • Like molecules that stick due to mutual attraction • Different molecules that are attracted to each other • A quantitative measure of the elastic force at the surface of a liquid • ...

10 Clues: EBT is used as? • Reduction occurs at? • Ion echange is also known as? • Which is do not soften on heating? • Water that has >35,000 ppm of dissolved solids • It is used for surface coating,paints, and molds for casting • Water purification process that uses a semipermeable membrane • Hard and sticky very firmly to the inner surface of the boiler? • ...

10 Clues: A chemical used to disinfect water • A common polymer used in plastic bottles • A measure of water’s acidity or alkalinity • A process used to remove hardness from water • A type of battery that uses a liquid electrolyte • A type of battery known for its high energy density • A common electrode material in lithium-ion batteries • ...

10 Clues: Battery that uses lithium as anode material • Material that conducts electicity in a fuel cell • A common polymer used in water filtration membrane • A common electrolyte used in lithium-ion batteries • Metal typically used in the cathode of alkaline batteries • Polymer with high heat resistence,often used in automotive parts • ...

10 Clues: reduces by product • eco friendly substitute • reduce environmental harm • green chemistry aim to protect • avoided to refuce health hazards • a device that stores electric charge • a device used to transform electric energy • a cell which convert energy to chemical energy • Cell which converts chemical energ to electrical energy • ...

10 Clues: A common electrolyte in electrochemical cells. • A process used to remove contaminants from water. • A polymer material commonly used in water filtration membranes. • The type of energy that is produced by an electrochemical cell. • A device used to convert chemical energy into electrical energy. • A polymer used in making water-resistant coatings and membranes. • ...

10 Clues: A thermosetting polymer used in adhesives and laminate • The process used to remove hardness from water by using sodium zeolite • A polymer made from tetrafluoroethylene known for its non stick properties • The electrode where reduction takes place during an electrochemical reaction • ...

10 Clues: lowest allowable energy state of an atom • three dimensional region around the nucleus • the number assigned to each orbit of an electron • electromagnetic waves given off by atoms of an element • each electron occupies the lowest energy orbital available • the energy levels contained within a principal energy level • ...

10 Clues: In calomel electrode which metal is at bottom? • Opposition to the flow of electron is knows as? • Formula for mode of vibration of linear molecule? • Plot of graph of pH v/s mL of NaOH added is called? • Sigma to sigma* transition is possible in which compounds? • Conductance of titration in conductomitric titration depends on? • ...

10 Clues: basic unit of matter • A pure substance made of only one kind of atom • A homogeneous mixture of two or more substances • A state of matter with no definite shape or volume • A form of matter that has a definite shape and volume • A mixture in which different materials can be distinguished easily • ...

10 Clues: moving liquid one container to another. • A state of matter that has no volume or shape • A fluid that conforms to the shape of its container. • A particle that changes form through solid, liquid and gas. • separating components of mixed based on different boiling points. • is the of process of water changes to a liquid to a gas or vapor. • ...

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

10 Clues: – A gas essential for breathing. • – A substance with a pH more than 7. • – A chemical link between two atoms. • – A substance with a pH less than 7. • – Anything that has mass and takes up space. • – The lightest element in the periodic table. • – Two or more atoms chemically bonded together. • – What happens when substances chemically change. • ...

10 Clues: reactants produce ____ • ____ produce a product • a correct equation is _____ • anything that takes up space • make sure both sides are _____ • a chemical equation can't be _____ • is N2O+N2O-> N3O2 a uneven or even equation? • the law that matter cant be created or destroyed • matter can only be _____ not created or destroyed • ...

10 Clues: Building blocks • chemically together • 26th Element in the Periodic Table • Components not chemically bonded together • Anything that has mass and takes up space • chemical element with the symbol C and atomic number 6 • Whenever atoms of the same element are grouped together • Scientific study of the properties and behavior of matter • ...

10 Clues: release of heat. • a group of atoms. • absorption of heat. • the links between atoms. • the molecular makeup of the object. • sharing of electrons between two atoms. • contains protons, neutrons, and electrons. • transferring of electrons between two atoms. • the electrons on the outer shell of the atom. • ...

10 Clues: Tiny things • found in lemons • Avogadros number • Made of one atom • Mass of Molecule • made of multiple atoms • Formula used to simplify • When atoms stick together • What you do with equations • Horizontal rows on Periodic Table

10 Clues: the mass of an atom • number of protons in an atom • describes the chemical change • equation to find out the mass • contains only one type of atom • sharing electrons between non metals • graph used with 2 continous variables • metal gives up an electron to become positive • reactant that is completely consumed in a chemical reaction • ...

10 Clues: Animal • The fourth state of matter • Negatively charged particle • Positively charged particle • Particle with no electric charge • Smallest particle in the universe • Vertical row on the periodic table • Horizontal row on the periodic table • The ability of a substance to form a solution with another substance • ...

10 Clues: substance with a density of 1 • how much space matter takes up • how much matter a substance contains • tool used to measure the mass of matter • chemical reaction that gives off energy • objects that float in water or other fluids • new substance formed by a chemical reaction • standard international unit of measure for temperature • ...

10 Clues: substance with a density of 1 • how much space matter takes up • tool used to measure mass of matter • how much matter a substance contains • new substance formed by a chemical reaction • standard international unit of measure for temperature • substance that is being changed in a chemical reaction • chemical reaction that gives off energy to surroundings • ...

10 Clues: gas to liquid • separate solid from a liquid • product has a higher energy than reactant • reactant has a higher energy than product • two or more atoms which are chemically bonded • breaking down of ionic compound using electricity • using electricity to coat one metal with another metal • same number of proton and electron but different number of neutron • ...

10 Clues: a process that gives off heat. • an electrode where oxidation occurs • a gas that is most abundant in the atmosphere of Earth. • a substance that forms a complex around a central atom. • a compound that produces OH- ions or electrons or accepts protons. • a substance that lowers the activation energy of a chemical reaction. • ...