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
kap26 [50]
3 years ago
8

what is the balanced equation of magnesium carbonate decomposes on heating to form magnesium oxide and carbon dioxide​

Chemistry
1 answer:
fenix001 [56]3 years ago
6 0

Answer:

ExplaAt high temperatures MgCO3 decomposes to magnesium oxide and carbon dioxide. This process is important in the production of magnesium oxide. This process is called calcining: MgCO3 → MgO + CO2 (ΔH = +118 kJ/mol)

nation:

You might be interested in
Which one of the following is correct about automobile batteries.
Rufina [12.5K]

Answer:

I think it's A

Explanation:

I'm sorry if it's not correct. I'm tryna get enough points to ask my question

5 0
3 years ago
Potassium hydrogen phthalate, KHP, is a monoprotic acid often used to standardize NaOH solutions. If 0.212 g of KHP are dissolve
pochemuha

0.212 g of KHP is are dissolved in 50.00 mL of water and are titrated by 35.00 mL of 0.0297 M NaOH.

Potassium hydrogen phthalate, KHP, is a monoprotic acid often used to standardize NaOH solutions.

The balanced neutralization equation is:

NaOH(aq) + KHC₈H₄O₄(aq) ⇒ KNaC₈H₄O₄(aq) + H₂O(l)

  • Step 1: Calculate the reacting moles of KHP.

0.212 g of KHP react. The molar mass of KHP is 204.22 g/mol.

0.212 g × 1 mol/204.22 g = 1.04 × 10⁻³ mol

  • Step 2: Determine the reacting moles of NaOH.

The molar ratio of NaOH to KHP is 1:1.

1.04 × 10⁻³ mol KHP × 1 mol NaOH/1 mol KHP = 1.04 × 10⁻³ mol NaOH

  • Step 3: Calculate the molarity of NaOH.

1.04 × 10⁻³ moles of NaOH are in 35.00 mL of solution.

[NaOH] = 1.04 × 10⁻³ mol / 35.00 × 10⁻³ L = 0.0297 M

0.212 g of KHP is are dissolved in 50.00 mL of water and are titrated by 35.00 mL of 0.0297 M NaOH.

Learn more about titration here: brainly.com/question/4225093

3 0
2 years ago
Explain how chemical change differs from a physical change
Grace [21]
A chemical change affects on the molecular level of matter, which makes it irreversible. Combustion is a pretty good exmple. Physical changes are reversible and dont alter the formula. Hope this helped!
8 0
3 years ago
Read 2 more answers
The most well-known biogenic d-elements
galina1969 [7]

Answer:

Zn, Cu, Fe, Mn, Co, Mo

Explanation:

Biogenic elements are chemical elements constantly present in organisms and having definite biological significance(Bowen, 1966).

There are many of these biogenic elements in nature. Among the elements of the d-block, Zn, Cu, Fe, Mn, Co, Mo are worthy of mention among others.

Free ions of d- block metals are not found in the body. The elements are present in the form of bioinorganic  complexes of the respective metals. They commonly exist as co-factors of proteins that carry out essential biological functions.

6 0
3 years ago
A material has a volume of 63.0 cm3 and a mass of 28 grams.  What is the density of the material in g/cm3 to the correct number
dimaraw [331]

Answer:

0.4444 g/cm³ ≅ 0.44 g/cm³ (2 significant figures).

Explanation:

  • Knowing that:

<em>d = m/V,</em>

where, d is the density of the material (g/cm³).

m is the mass of the material (m = 28 g).

V is the volume of the material (V = 63.0 cm³).

<em>∴ d = m/V </em>= (28 g)/(63.0 cm³) = <em>0.4444 g/cm³ ≅ 0.44 g/cm³ (2 significant figures).</em>

7 0
3 years ago
Other questions:
  • What does a very small equilibrium constant (K≪ 1) tell you about the reaction? View Available Hint(s) What does a very small eq
    15·1 answer
  • Is diamond cutting glass a physical or chemical property?
    10·1 answer
  • I kinda need this question answered fast please and thank you :)
    11·1 answer
  • What is the passage from the mouth to the larynx and esophagus?
    6·1 answer
  • What are some differences between a family tree and evolutionary
    7·1 answer
  • According to your investigation in part A, how do strong acids differ from weak acids? Select all the correct answers. Strong ac
    15·2 answers
  • Other than water, what substance is formed when an acid and a base are combined in a water solution?
    12·1 answer
  • What type of reaction is the following: *
    8·1 answer
  • Please help it’s due by midnight I’ll mark you brainiest if you’re able to help
    14·1 answer
  • What is the [SO32-) in the 0.080 M H2SO3 .080 M Solution?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!