1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vedmedyk [2.9K]
2 years ago
13

1 Calcium carbonate breaks down on heating to produce calcium oxide and carbon dioxide gas.

Chemistry
1 answer:
Alborosie2 years ago
7 0

Answer:  See below

Explanation:

1.  a)  0.15 moles calcium carbonate  (15g/100g/mole)

   b)  0.15 moles CaO  (molar ratio of CaO to CaCO3 is 1:1)

   c)   8.4 grams CaO  (0.15 moles)*(56 grams/mole)

2. a)  0.274 moles Na2O  (17g/62 grams/mole)

   b)  46.6 grams NaNO3  (2 moles NaNO3/1 mole Na2O)*(0.274 moles Na2O)*(85 g/mole NaNO3)

You might be interested in
Why is citric acid added to food? to add color to add tartness to add bitterness to add sweetness
Sergeu [11.5K]
To add tartness / good luck and will you mark me brainliest please
8 0
3 years ago
Read 2 more answers
Heat is being removed from a substance, but its temperature does not change. What is
ololo11 [35]
So its temperature will not rise, since kinetic energy of molecules remains the same. The quantity of heat absorbed or released when a substance changes its physical phase at constant temperature (e g. From solid to liquid at melting point or from liquid to gas at boiling point) is termed as its latent heat.
4 0
2 years ago
Which of the following corresponds to an alpha particle?
andrey2020 [161]

Answer:

Atomic number=No. of protons=No. of electrons in ground state(unchanged atom)

Atomic number=13=No. of protons

Atomic mass=no. of protons+no. of neutrons=13+14=27

For isotope no. of proton=13(same atomic number but different mass number are isotopes)

no. of electrons=13

no. of neutrons=14+2=16

Explanation:

hope it's help you

4 0
2 years ago
As temperature increases, density increases.<br><br> True or False
Alex73 [517]
Density increases with the temperature, true.
4 0
2 years ago
Read 2 more answers
What is the number of oxygen atoms in 32grams of the gas​
Lady bird [3.3K]

One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms.

7 0
2 years ago
Other questions:
  • El sol es la estrella más grande
    5·1 answer
  • Consider the following balanced reaction between hydrogen and nitrogen to form ammonia:
    14·1 answer
  • You could add aquous hydrochloric to the solution to precipitate out silver chloride. What volume of a 0.130 M aqueous hydrochlo
    6·1 answer
  • What is an example of a stable system
    13·2 answers
  • What is answer and why
    12·1 answer
  • Why wouldn’t a tennis player with two sneakers “bond” to any other tennis players? Why wouldn’t a helium atom with two electrons
    14·1 answer
  • 22.4l of ammonia is reaxts with 1.406 mole of oxygen to produce NO and h2o .1.what volume of no is produced at ntp​
    5·1 answer
  • ........................................................
    7·1 answer
  • What is the density of a 500g box whose volume is 67 ml?
    15·1 answer
  • 7. Lli(s) + N₂(g) → 2 Liz Ncs)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!