Questions by Tharindu Welagedara

Questions by Tharindu Welagedara

Please help!! Any answers help! Please show your work!

asked Jun 27, 2020

1 answer

3 votes

203k views

Zn + 2 HCl --> ZnCl2 + H2 How many moles of hydrochloric acid (HCl) are used (assume a complete reaction) if 8.3 moles of zinc chloride (ZnCl) are produced? A 8.3 mol ZnCl2 B None of these answers C 8.

asked Jan 26, 2020

1 answer

1 vote

99.3k views

What is an undirected graph?

asked Jan 8, 2020

1 answer

0 votes

18.5k views

Maya has scored 72,70,70,72, and 65 on her previous five tests. What does she need to score of her next text so that her average (mean) is 74?

asked Dec 24, 2018

1 answer

3 votes

198k views

This equation indicates that the reaction gives off heat. What is this type of reaction called? 2C4H10 +?O2 ? 8CO2 + 10H2O + heat a. an exothermic reaction b. an endothermic reaction c. absorption reaction

asked Oct 16, 2018

1 answer

2 votes

202k views

Mirage is due to... A. unequal heating of different parts of the atmosphere B. magnetic disturbances in the atmosphere C. depletion of ozone layer in the atmosphere D. equal heating of different parts

asked Apr 27, 2018

1 answer

2 votes

86.2k views

Rachel jogged along a trail that was 1/4 of a mile long. She jogged along the trail 8 times. How many miles did Rachel jog?

asked Jan 14, 2018

2 answers

0 votes

32.1k views

Page:

Search QAmmunity.org