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3 years ago

4.Which scientist described the electrons as traveling in certain orbits or energy levels?

Chemistry

1 answer:

Ulleksa [173]3 years ago

4 0

I believe it’s C. Thomson

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Write an equilibrium expression for each chemical equation involving one or more solid or liquid reactants or products. Part A:

madam [21]

Answer:

Part A: $Kc=\frac{C.D}{A}$

Part B: $Kc=\frac{C.D}{A}$

Part C: $Kc=\frac{C^{2} }{B}$

Part D: $Kc=\frac{C^{2} }{B}$

Explanation:

<em>Write an equilibrium expression for each chemical equation involving one or more solid or liquid reactants or products.</em>

The equilibrium constant (Kc) is equal to the product of the concentration of the products raised to their stoichiometric coefficients divided by the product of the concentration of the reactants raised to their stoichiometric coefficients. It only includes gases and aqueous species (not liquids or solids).

Part A: HCHO₂(aq) + H₂O(l) ⇌ H₃O⁺(aq) + CHO₂⁻(aq)

Use A for [HCHO₂], B for [H₂O], C for [H₃O⁺], D for [CHO₂⁻].

$Kc=\frac{C.D}{A}$

PART B: CO₃²⁻(aq) + H₂O(l) ⇌ HCO₃⁻(aq) + OH⁻(aq)

Use A for [CO₃²⁻], B for [H₂O], C for [HCO₃⁻], D for [OH⁻].

$Kc=\frac{C.D}{A}$

PART C: 2 C(s) + O₂(g) ⇌ 2 CO(g)

Use A for [C], B for [O₂], C for [CO].

$Kc=\frac{C^{2} }{B}$

PART D: C(s) + CO₂(g) ⇌ 2 CO(g)

Use A for [C], B for [CO₂], C for [CO].

$Kc=\frac{C^{2} }{B}$

7 0

3 years ago

Which atom in the ground state has a stable valence electron configuration?

Alecsey [184]

(1) Ar is your answer. Argon is a noble gas, which is stable in its standard valence electron configuration because it already completed its valence shell following the octet rule.

3 0

3 years ago

Read 2 more answers

How is beryllium (Be) similar to calcium (Ca)?

timofeeve [1]

C both are very reactive i guess

7 0

4 years ago

A chemical equation that does not indicate relative amounts of reactants and products is called

Zielflug [23.3K]

Answer:

The correct answer is skeleton equation.

Explanation:

In chemistry, the skeletal formula of a compound is an abbreviated representation of its molecular structure. Skeleton formulas are used because they clearly show complicated structures, they are fast and simple to draw.

All atoms that are not carbon or hydrogen are represented by their chemical symbol. The relative amounts of reagents and products are not indicated.

Have a nice day!

6 0

3 years ago

probably causes most variations in individuals ? Sunlight b . gene mutations c . poisons d. cell phones

12345 [234]

Hi how are you Henson’s dndndndndndndn

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3 years ago