6
What must occur for a chemical reaction to take place?
a chemical reaction that transfers energy from the reactants to the surrounding area
Newtons third law of motion
The tiny algae and animals that float in the surface zone
the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
Are atoms created or destroyed in a chemical reaction?
this type of reaction is when the reactant breaks down into other substances
decomposition reaction
homogeneous type of mixture of two or more substances
The free-swimming organisms
a positively charged atom that is released in the disintegration of radioactive elements and that consists of two protons and two neutrons
What happens to the bonds between atoms during a chemical change?
a chemical reaction is said to be this, if it gains or loses electrons
A compound that produces hydronium ions when dissolved
The continuous flow of ocean water in a certain direction
a radioactive isotope of an element
Why must the chemical equation of a chemical change always be balanced?
if you do this to a chemical reaction, you will increase or decrease the rate of reaction
A compound that produces hydroxide ions when dissolved in water; a proton acceptor
A strong flow of water perpendicular to the shore that returns seaward
a fourth state of matter distinct from solid or liquid or gas and present in stars and fusion reactors
What does it mean to say that mass is conserved during a chemical reaction?
light, heat, and electricity
A substance whose particles are dissolved in a solution
A movement that transfers energy from point to point through matter.
the act of fusing (or melting) together