subject
Chemistry, 02.02.2021 05:20 lorie76

Zinc metal reacts with hydrochloric acid HCl to produce zinc (II) chloride ZnCl2 and hydrogen gas H2. How many molecules are in 15 g H2? (4.5x10^24 molec H2) Please help will mark brainliest!!

ansver
Answers: 3

Another question on Chemistry

question
Chemistry, 22.06.2019 14:30
Which of the following describes a situation where competition between producers exists
Answers: 1
question
Chemistry, 23.06.2019 01:30
Ascientist is measuring the pressure that is exerted by each of the following gases in the atmosphere: carbon dioxide, oxygen, and nitrogen. which term most likely describes what she is measuring?
Answers: 1
question
Chemistry, 23.06.2019 03:40
The following questions a24 - a26 relate to 100 ml of 0.0150 m solution of benzoic acid (c6h3cooh). ka(c6h3cooh) = 6.4 x 10^-5. what is the ph of the solution after the addition of 1 x 10^-3 moles of naoh? you may assume no volume change to the solution upon addition of the naoh.
Answers: 2
question
Chemistry, 23.06.2019 04:40
6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity
Answers: 1
You know the right answer?
Zinc metal reacts with hydrochloric acid HCl to produce zinc (II) chloride ZnCl2 and hydrogen gas H2...
Questions
question
Biology, 25.07.2019 14:20
Questions on the website: 13722367