Science Crossword Puzzles

phenol's chemical name, ech, the heat of reaction in the cumene process is _ , ethylene dichloride, in a recent one-step process, toluene can be …

a change where new substances are formed, solid that forms when two solutions react, the gas produced when magnesium reacts with hydrochloric acid, …

a reaction that absorbs energy, a reaction that releases energy, a substance that can increase the rate of a reaction without being used up, the …

having the same molecular formula but different structural formulas or connectivity of their atoms, substituents that are on opposite sides of the …

what is the scale called that you measure acids and alkalis on?, what word does the colors blue and purple go with?, what is the process to make …

stores energy in a chemical store, which it can release as heat, a change that does not form new substances, but changes the physical properties of …

a substance in which other materials dissolve to form a material, a term used to describe alkenes, name the first step in a radical reaction, when the …

the smallest particle of an element that retains all the properties of that element, a chemical combustion of two or more different elements, can be …

what forms when one substance dissolves in another substance, a well-tested explanation that has broad evidence and predictive value, the smallest …

to use a paper and funnel to separate a solid from a liquid, when a liquid turns into a gas, a liquid with tiny solid particle hanging in it, a very …

a method to separate certain metals like iron or steel, a branch of science where we study substances and mixtures, something physical that you can …

cations and anions lose/gain electrons to achieve this.., what is the only poly atomic that is a cation?, a negatively charged ion that forms by …

which precious metal is used in printed circuit boards?, what speeds up the rate of a reaction?, which metals are found in the central block in the …

hydrocarbon containing 1 double bond, formula r-cho, a chemical reaction where energy is released, faster reaction, _ ea, measure of a molecule's …

a saturated hydrocarbon with a general formula cnh2n, a group of similar compounds sharing a common general formula, the fourth alkane, the third …

these are used to show the charges of transition metals in an ionic bond, the rule that says atoms want to have a full outer shell, typically …

the particles in a _ are far apart and move quickly to spread out in the space, the particles in a solid are very close together and _ , when the …

a substance that contains one kind of atom and cannot be broken down into a simpler form, a substance made of two or more elements chemically combined …

the changing from vapor state to a liquid state, when a substance is cooled, the mass per unit volume of an object, the changing from liquid to a …

containing carbon atoms joined together in a ring that is not aromatic, an organic compound containing a benzene ring, movement of pair of electrons, …

this happens to the surface of an alkali metal when it reacts with oxygen, this gas is produced when an alkali metal reacts with water, sodium _ into …

_ are shown to the right of the arrow, what does the arrow mean in a chemical equation?, _ are shown on the left of the arrow, a tool used to …

a particle with a positive charge, an uncharged atomic particle, a particle that is found in all atoms, total numbers of neutrons and protons in a …

a naturally occurring rock that contains metal, the structure used to extract iron from its ore, the process used to extract more reactive metals like …

a negatively charged subatomic particle occupying orbitals, a region of space that can hold a maximum of two electrons, a species containing one or …

meaning of ph, when acid reacts to base and produce salt and water, has a ph level of 7, an indicator that is colorless and turns to pink when …

this is a number that indicates the ability of an atom to attract electrons from another atom., this is the positive subatomic particle, this is the …

the change of state from solid to liquid, the state of matter where particles move fastest, the state of mater where the particles are fixed in …

the mass in grams of one mole of any pure substance, a statement using chemical formulas to describe the identities and relative amounts of the …

type of protein that associates with eukaryotic dna and structurally organizes chromosomes, process by which cells become specialized during …