Chemistry, 18.12.2020 22:50 darianhaynes
14. Chemical reactions can occur when molecules collide. What happens when molecules collide but no
chemical reaction takes place?
A. Atoms in the molecules are rearranged.
B The molecules change their shape.
C. The molecules bounce off each other.
D. The pressure in the container increases.
Answers: 3
Chemistry, 21.06.2019 18:30
In an energy pyramid, which level has the most available energy?
Answers: 1
Chemistry, 22.06.2019 17:50
Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?
Answers: 2
Chemistry, 23.06.2019 04:40
Temperature is defined as a. the equivalent of heat. b. a measure of the average kinetic energy of the individual atoms or molecules composing a substance. c. how hot or cold it is. d. the total kinetic energy of the atoms or molecules composing a substance. e. none of the above is correct.
Answers: 1
Chemistry, 23.06.2019 10:30
How much mass would a mole of hydrogen molecules contain? recall that hydrogen is diatomic. g/mol
Answers: 3
14. Chemical reactions can occur when molecules collide. What happens when molecules collide but no...
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