Chemistry, 05.04.2021 23:00 BrinkerSky8378
In an experiment, calcium carbonate reacted with different volumes of hydrochloric acid in water. One of the products formed during the experiment was carbon dioxide. The time taken for 0.89 mL of carbon dioxide to form was recorded. A partial record of the experiment is shown.
Experimental Record
Flask Mass of
Calcium Carbonate Volume of
HCl Volume of
Water Time
1 4.0 g 25 mL 0 mL 11.2 seconds
2 4.0 g 20 mL 5 mL
3 4.0 g 15 mL 10 mL
4 4.0 g 10 mL 15 mL
Based on your knowledge of factors that affect the rates of chemical reactions, predict the trend in the last column of the experimental record. Use complete sentences to explain the trend you predicted. You do not have to determine exact values for time; just describe the trend you would expect (increase or decrease) and why it occurs.
Answers: 3
Chemistry, 21.06.2019 15:50
Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3no2(g)+h2o(l)→2hno3(l)+no(g) part a suppose that 4.2 mol no2 and 0.50 mol h2o combine and react completely. which reactant is in excess? express your answer as a chemical formula. nothing
Answers: 1
Chemistry, 21.06.2019 16:00
What is the cellular process that releases the energy stored in food molecules
Answers: 3
Chemistry, 21.06.2019 21:00
Consider the nuclear equation below. 239 > x + 4 he 94 2 what is x? 1.235 cm 96 2.243 u 92 3.235 u 92 4.243 cm 96
Answers: 2
Chemistry, 22.06.2019 23:00
What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?
Answers: 3
In an experiment, calcium carbonate reacted with different volumes of hydrochloric acid in water. On...
Mathematics, 30.06.2020 18:01
Computers and Technology, 30.06.2020 18:01
Computers and Technology, 30.06.2020 18:01
Mathematics, 30.06.2020 18:01
English, 30.06.2020 18:01
Mathematics, 30.06.2020 18:01
Business, 30.06.2020 18:01
History, 30.06.2020 18:01
Mathematics, 30.06.2020 18:01
Mathematics, 30.06.2020 18:01