Chemistry, 28.01.2020 13:37 eliascampos823
20 points 2 questions can you answer them
1 which of the following reactions is a synthesis reaction?
n2 + 3h2 → 2nh3
mgi2 + br2 → mgbr2 + i2
kclo3 → kcl + o2
hcl + naoh → nacl + h2o
2 suppose that the half-life of an element is 1000 years. how many half-lives will it take before one-eighth of the original sample remains?
8
125
12.5
3
Answers: 1
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If i make a solution by adding 83grams of sodium hydroxide to 750ml i’d water what is the molarity of sodium hydroxide
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Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d
Answers: 1
Chemistry, 22.06.2019 17:50, kaylamount
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
20 points 2 questions can you answer them
1 which of the following reactions is a synthesis r...
1 which of the following reactions is a synthesis r...
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