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
zmey [24]
3 years ago
14

the decomposition of calcium carbonate to calcium oxide and carbon dioxide only takes place at very high temperatures, making th

e direct measurement of h for this reaction difficult. both calcium carbonate and calcium oxide react readily with dilute hydrochloric acid at room temperature
Chemistry
1 answer:
USPshnik [31]3 years ago
4 0
So calculate the H for the other two reactions a room temperature and combine the reactions to calculate the H of the decomposition of calcium carbonate using the Hess's Law
You might be interested in
How many liters of 0.1107 M KCI contains 15.00 g of KCI (FW= 74.6 g/mol)
Mashcka [7]
Number of moles:

n = sample mass / molar mass

n = 15.00 / 74.6

n = 0.2010 moles of KCl

Therefore:

Molarity = moles / Volume

0.1107 = 0.2010 / V

V = 0.2010 / 0.1107

V = 1.815 L 


8 0
3 years ago
Read 2 more answers
A mixture is best described as:
Vesna [10]
The conglomeration of two quantities.

Two quantities that go together to become a new identity.

Here are two different definitions you can put in! Hope this helps! Please give brainliest❤️

3 0
3 years ago
How many grams of AgNO3 are needed to prepare a 75.00 mL solution that is 6.5% (m/v)?
FrozenT [24]

Answer:

Volume of AgNO₃ = 4.9 ml (Approx)

Explanation:

Given:

Total solution = 75 ml

Volume of AgNO₃ = 6.5%

Find:

Volume of AgNO₃

Computation:

Volume of AgNO₃ = Total solution x Volume of AgNO₃

Volume of AgNO₃ = 75 x 6.5%

Volume of AgNO₃ = 4.875

Volume of AgNO₃ = 4.9 ml (Approx)

5 0
3 years ago
Anyone else getting this
Alik [6]

Answer:

yeeehhhhhh

Explanation:

basically my charger doesnt work

3 0
3 years ago
Read 2 more answers
6) How many valence electrons does an atom of Cu possess?
agasfer [191]
The answer is c)11 because copper has 11 valence electrons
7 0
3 years ago
Other questions:
  • modern vacuum techniques make it possible to reach a pressure of 1.00 * 10 ^ -10 mm Hg in a laboratory system. what volume in mi
    12·1 answer
  • How many grams are in 2.40 mol of sodium chloride (NaCl)
    10·1 answer
  • Which statement indicates that viruses might not be living things?
    6·2 answers
  • How did the atomic theory develop
    14·1 answer
  • What best explains the relationship between structure and function of the cell membrane?
    12·2 answers
  • What is the mass in grams of 6.022 x 1023 molecules of CO2?
    8·1 answer
  • A 25.0 mL aliquot of 0.0680 M EDTA was added to a 59.0 mL solution containing an unknown concentration of V3 . All of the V3 pre
    11·1 answer
  • Scribing the Phases of the Moon
    15·2 answers
  • How many moles of oxygen are in 3. 70 moles of naclo4?.
    13·1 answer
  • A chemist needs to know the mass of a sample of to significant digits. She puts the sample on a digital scale. This is what the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!