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3 years ago

Whats Potassium bond type? Please help!

Chemistry

2 answers:

olga_2 [115]3 years ago

5 0

Answer:

A metallic bond.

Explanation:

Potassium is a metal (alkali metal), hence its bonds are metallic bonds.

Hope this helped!

Valentin [98]3 years ago

3 0

Answer:

metallic bond............

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Can someone help, please ??

Zinaida [17]

Number 13 is D. Mendeleev. He was a Russian chemist and inventor who formulated the periodic table.

5 0

3 years ago

Read 2 more answers

What is the net ionic equation for the reaction that occurs when aqueous copper(II) sulfate is added to excess 6-molar ammonia?a

Karolina [17]

Answer:

c. 2NH₃ + 2H₂O + Cu²⁺ → Cu(OH)₂(s) + 2NH₄⁺

Explanation:

A net ionic equation is a chemical equation that list only the species that are involved in the reaction.

The reaction of ammonia with copper(II) sulfate CuSO₄ in water is:

2NH₃ + 2H₂O + CuSO₄ → Cu(OH)₂(s) + 2NH₄⁺ + SO₄²⁻

In an ionic equation, salts are written as ions, that means CuSO₄ must be written as Cu²⁺ + SO₄²⁻. That is:

2NH₃ + 2H₂O + Cu²⁺ + SO₄²⁻ → Cu(OH)₂(s) + 2NH₄⁺ + SO₄²⁻

As in a net ionic equation you must list only the species involved in the reaction (The underlined species don't react), the net ionic equation is:

c. 2NH₃ + 2H₂O + Cu²⁺ → Cu(OH)₂(s) + 2NH₄⁺

I hope it helps!

7 0

3 years ago

A car travels 180 m souteast in 30 s. What is it's average velocity?

Alja [10]

Answer:

B. 6m/s southeast

Explanation:

velocity= distance / time

= 180/ 30

6m/s southeast

7 0

2 years ago

For the reaction ? Ch3oh+? O2 →? Hco2h+? H2o , what is the maximum amount of hco2h (46.0254 g/mol) which could be formed from 6.

saw5 [17]

Answer:- 9.98 grams.

Solution:- The given balanced equation is:

$CH_3OH+O_2\rightarrow HCO_2H+H_2O$

From this equation, there is 1:1 mol ratio between methanol and formic acid. We start with given grams of methanol and convert them to moles. Then using mol ratio the moles of foramic acid are calculated and finally converted to grams on multiplying by it's molar mass.

The calculations could easily be done using dimensional analysis as:

$6.95gCH_3OH(\frac{1molCH_3OH}{32.0419g})(\frac{1molHCO_2H}{1molCH_3OH})(\frac{46.0254gHCO_2H}{1molHCO_2H})$

= $9.98gHCO_2H$

Hence, 9.98 grams of formic acid can be formed from 6.95 grams of methanol.

8 0

3 years ago

Consider the chemical equations shown here. C(s) + 2H2(g) → CH4(g) C(s) + 2Cl2(g) → CCl4(g) H2(g) + Cl2(g) → 2HCl(g) What is the

Vikentia [17]

Answer:

The answer to your question is below

Explanation:

(I) C(s) + 2H2(g) → CH4(g)

(II) C(s) + 2Cl2(g) → CCl4(g)

(III) H2(g) + Cl2(g) → 2HCl(g)

Process

Change (I) CH4(g) ⇒ C(s) + 2H2(g)

Add (I) and (II) C(s) + 2Cl2(g) ⇒ CCl4(g)

Result CH4(g) + C(s) + 2Cl2(g) ⇒ CCl4(g) + C(s) + 2H2(g)

Simplify CH4(g) 2Cl2(g) ⇒ CCl4(g) + 2H2(g) (IV)

Multiply (III) by 2 2( H2(g) + Cl2(g) → 2HCl(g))

2 H2(g) + 2Cl2(g) → 4HCl(g) (V)

Add (IV) and (V)

CH4(g) + 2Cl2(g) ⇒ CCl4(g) + 2H2(g)

2 H2(g) + 2Cl2(g) ⇒ 4HCl(g)

CH4(g) + 2Cl2(g) + 2 H2(g) + 2Cl2(g) ⇒ CCl4(g) + 2H2(g) + 4HCl(g)

Simplify

CH4(g) + 4Cl2(g) ⇒ CCl4(g) + 4HCl(g)

4 0

3 years ago