![subject](/tpl/images/cats/himiya.png)
Chemistry, 27.12.2019 13:31 coreyscott1281
When kay added 30 g of hydrochloric acid (hcl) to 65 g of zn, bubbles appeared and a white precipitate, zinc chloride (zncl2) was produced. she found that the mass of the zinc chloride was 63 g. since the law of conservation of matter stated that matter can't be created or destroyed, she was puzzled about the difference in mass. what is the best explanation for the missing 2 g?
a) 2 g of zinc disappeared.
b) 2 g of hydrogen gas were produced.
c) kay didn't correctly mass the precipitate.
d) kay didn't collect all of the precipitate.
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 18:10
Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 01:00
Iron (fe) reacts with copper sulfate (cuso4) to form iron (ii) sulfate. in this reaction, cu2+ gains electrons to form cu. which statement is true about this reaction? fe(s) + cuso4(aq) → feso4(aq) + cu(s)
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 19:10
Which expression can be used to calculate the density of an ideal gas? pm + rt mrt + pv mrt ÷ pv pm ÷ rt
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 19:30
There was a water with a boat and a rock in a boat. will the level of the water stay the same or higher or lower if u remove the rock from the boat and put it under water? ?
Answers: 3
You know the right answer?
When kay added 30 g of hydrochloric acid (hcl) to 65 g of zn, bubbles appeared and a white precipita...
Questions
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 23:10
![question](/tpl/images/cats/biologiya.png)
Biology, 15.12.2020 23:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 23:10
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 23:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 23:10
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 15.12.2020 23:10
![question](/tpl/images/cats/en.png)
English, 15.12.2020 23:10
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 23:10
![question](/tpl/images/cats/fizika.png)
Physics, 15.12.2020 23:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 15.12.2020 23:10
![question](/tpl/images/cats/istoriya.png)