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snow_lady [41]
3 years ago
14

CHEMISTRY

Chemistry
2 answers:
andrezito [222]3 years ago
8 0
Number 1.c
number 2.a
number 3.b
number 4.d
Svetach [21]3 years ago
7 0

Answer:

Which of the following occurs in beta decay?

Answer: A neutron of an atom emits a high energy electron.

Explanation:

Via Educere/ Founder's Education

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Given the following unbalanced equation:
antiseptic1488 [7]
<h3>Answer:</h3>

11.84 mol CoF₂

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Moles

<u>Stoichiometry</u>

  • Using Dimensional Analysis
  • Analyzing Reactions RxN
<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Unbalanced] CoCl₂ + F₂ → CoF₂ + Cl₂

[RxN - Balanced] CoCl₂ + F₂ → CoF₂ + Cl₂

[Given] 11.84 moles CoCl₂

[Solve] moles CoF₂

<u>Step 2: Identify Conversions</u>

[RxN] 1 mol CoCl₂ → 1 mol CoF₂

<u>Step 3: Stoich</u>

  1. [DA] Set up:                                                                                                       \displaystyle 11.84 \ mol \ CoCl_2(\frac{1 \ mol \ CoF_2}{1 \ mol \ CoCl_2})
  2. [DA] Multiply/Divide [Cancel out units]:                                                          \displaystyle 11.84 \ mol \ CoF_2
7 0
3 years ago
What is the molecular formula of chalk ?
NemiM [27]

Explanation:

Calcium carbonate (Chalk) is a chemical compound, with the chemical formula CaCO3. Calcium carbonate (Chalk) is a chemical compound, with the chemical formula CaCO3.

4 0
3 years ago
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Minerals are very useful to us. Which of the following is a false statement?
Shtirlitz [24]
A. Pyrite is an ore of gold and is used to jewelry making is a false statement
4 0
3 years ago
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How many valence electrons do the noble gases possess?
8090 [49]

Answer:

Have no valence electrons because they are stable.

Thank you.

BY GERALD GREAT

6 0
3 years ago
Which represents the correct equilibrium constant expression for the reaction below?
zubka84 [21]
K(eq) = concentration of products/concentration of reactant
         = [Cu+2] / [Ag+]^2 

Activity of pure solid and liquid is taken as 1.

Hence last option is correct.

Hope this helps, have a great day ahead!

6 0
3 years ago
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