Chemistry, 01.08.2019 03:30, misslux

Astudent is told that both energy and mass must be conserved in every chemical reaction. she measures the mass of hydrochloric acid and a zinc strip separately. she then places the zinc strip into the acid and bubbles form as the zinc looks like it disappears. the combined mass afterward is less than the original. which of these can explain this result?

Answers: 2

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 10:50, lejeanjamespete1

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm

Answers: 1

continue

Chemistry, 22.06.2019 12:00, zamariahyou

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?

Answers: 1

continue

Chemistry, 22.06.2019 13:10, mallyosburn

Draw two cyclic constitutional isomers of cis-1

Answers: 2

continue

Chemistry, 22.06.2019 20:10, maddie1776

Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)

Answers: 1

continue

Do you know the correct answer?

Astudent is told that both energy and mass must be conserved in every chemical reaction. she measure...