Chemistry, 28.09.2019 02:40 hairyears3394
Which of the following is the best description of a chemical reaction? a. when molecules of a substance move slowly enough, they link together to form a crystalline structure. b. when two molecules collide with enough force, old chemical bonds are broken and new bonds form, resulting in one or more new substances. c. when two molecules collide with enough force, they shatter into individual atoms. later, these atoms join up in new combinations to form new substances. d. when two atoms collide with enough force, their nuclei fuse together, forming new substances and releasing tremendous amounts of energy.
Answers: 2
Chemistry, 22.06.2019 05:00
Cucl2 + 2nano3 cu(no3)2 + 2nacl what is the percent yield of nacl if 31.0 g of cucl2 reacts with excess nano3 to produce 21.2 g of nacl? 49.7% 58.4% 63.6% 78.7%
Answers: 1
Chemistry, 22.06.2019 06:30
The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide
Answers: 3
Chemistry, 22.06.2019 07:30
Using data from seismic waves, geologists have learned that earth’s interior is made up of several
Answers: 1
Which of the following is the best description of a chemical reaction? a. when molecules of a subst...
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