Question

To the correct number of significant figures a 323 gram solid cube of mercury (II) oxide...

To the correct number of significant figures a 323 gram solid cube of mercury (II) oxide has a density of 4.2 x 104 ng/m3 .

a) What is the length of one side of the cube in cm?

b) The mercury (II) oxide completely dissociates and forms liquid mercury and oxygen gas. Write a balanced chemical equation and indicate if this process is a chemical or physical change?

c) The oxygen gas escapes and now you are left with liquid grey substance. Is this grey substance a compound, element, homogeneous mixture or heterogeneous mixture

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

(a) density = mass / volume

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Liquid mercury can be generated by heating solid mercury (II) oxide to decomposition, releasing oxygen gas....
Liquid mercury can be generated by heating solid mercury (II) oxide to decomposition, releasing oxygen gas. 2HgO(s) 2Hg(l) + O2(g) If you place a specific amount of the solid mercury compound in a closed reaction vessel at a particular temperature and allow equilibrium to be reached, how could you then increase the formation elemental mercury? (select all that apply) Adding more mercury(II) oxide. Removing some oxygen. Increasing the volume of the vessel.
a)How is it possible to determine if CaCO3 is Cl- free after synthesis? b)How can the...
a)How is it possible to determine if CaCO3 is Cl- free after synthesis? b)How can the Cl- ions be remove from CaCO3 after synthesis? I should answer the questions from the following experiment but if you know the answer and you are sure, yo do not need to read experiment. Please answer correctly because i hav no chance to make wrong :(((( Physical and Chemical Properties of Pure Substances Objective The aim of today’s experiment is to learn handling chemicals...
Chemical Reactions Types and Their Equations Making Heat with Chemical Reactions Have you ever wondered how...
Chemical Reactions Types and Their Equations Making Heat with Chemical Reactions Have you ever wondered how an instant heat pack works? A disposable heat pack works by a chemical reaction that combines iron in the package with oxygen from the air when the outer packaging is removed producing iron oxide. You have probably seen the product of this reaction in what is commonly called rust. The reaction releases heat, which allows the pack to reach a sufficient temperature that is...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT