CH3CH3Li ionic or covalent

Which compounds contains primarily carbon and hydrogen atoms linked together by nonpolar covalent bonds

Tatiana [17]

Answer: Hydrocarbons

Explanation:

Hydrocarbons refer to binary compounds of carbon and hydrogen. The carbon-hydrogen bond is no polar so hydrocarbons are non polar compounds. They are commonly used as fuels and as waxes. They may be aromatic, aliphatic or cyclic in structure.

8 0

3 years ago

When nitrogen is removed from a sample of tha air in the process of nitrogen fixation, what happens to the patial pressure of ni

Mrrafil [7]

Negligible or no change. In the chemistry of nitrogen bacteria convert nitrogen from the AIR, and hydrogen from cell into cell bound ammonia

N2 + 3 H2 -> 2 NH3

But where does that H2 come from? From metabolic reactions in the cell that produce CO2 and H2O. The partial pressure from the gas CO2 molecule pretty much replaces the partial pressure of the N2, and any real pressure difference would be made up of respiration of the H20 from the cell into the air.

5 0

3 years ago

A nickel compound has the formula Ni(NO3)2•xH,0 and a molar mass

Fofino [41]

<h2>Answer: x = 6</h2>

Explanation:

Molar mass of a compound is the sum of the molar mass of all the atoms of the compound.

⇒ Molar mass of the Nickel Compound (Hydrated Nickel (II) Nitrate)

= Molar mass (Ni+ 2N + 6O)+ x (2H+ O)

= [58.693 + 2(14.007) + 6(15.999)] + x [2(1.008) + 15.999] g/mol

= (182.701 + 18.015x) g/mol

Since the molar mass is known to be 290.7 g/mol

then 182.701 + 18.015x = 290.7

⇒ 18.015x = 290.7 - 182.701

x = (290.7 - 182.701) ÷ 18.015

∴ x = 6 [conventionally expressed as a whole number]

that makes the compound Nickel Nitrate Hexahydrate

8 0

3 years ago

Which of the following 0.300 M solutions would contain the highest concentration of potassium ions?

mojhsa [17]

Here is a list of 0.300 M solutions that you can consider to select which has the highest concetration of potassium ions:

Select one:

a. potassium oxide

b. potassium phosphate

c. potassium hydrogen carbonate

d. potassium hypochlorite

e. potassium iodide

Answer:

Option b. potassium phosphate

Explanation:

First, you must write the chemical formula of each one of the potasssium compounds. Then, assume all the compounds ionize 100%.

Since all the solutions have the same concentrations, by assuming 100% ionization, the ionization equations will show which one produces the highest number of potassium ions, K⁺¹, and that is the solution with the highest concentration of such ions.

1. Chemical formulae

Compound Formula

a. potassium oxide K₂O

b. potassium phosphate K₃PO₄

c. potassium hydrogen carbonate KHPO₃

d. potassium hypochlorite KClO₄

e. potassium iodide KI

2. Dissociation (ionization):

a. potassium oxide, K₂O

K₂O does not dissociate but react with water to product KOH, then KOH dissociates, but there is not such thing as a 0.300 M solution of K₂O.

b. potassium phosphate:

K₃PO₄ → 3K³⁺ + PO₄¹⁻ 3 K⁺¹ ions per unit formula

c. potassium hydrogen carbonate

KHPO₃ → K⁺¹ + HPO₃⁻¹ 1 K⁺¹ ion per unit formula

d. potassium hypochlorite

KClO₄ → K⁺¹ + HClO₄⁻¹ 1 K⁺¹ ion per unit formula

e. potassium iodide

KI → K⁺¹ + I⁻¹ 1 K⁺¹ ion per unit formula.

Hence, the 0.300 M solution of potasssium phosphate produces the highest concentration of potassium ions.

6 0

4 years ago

How many total atoms are in 5C3

GuDViN [60]

Answer:

There are 15 total Carbon Atoms

there are 5 groups of 3

5(C3)

5x3 = 15

5 0

3 years ago