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3 years ago

Write the formulas of the following compounds:

Chemistry

1 answer:

ddd [48]3 years ago

5 0

Answer:

a) Chloride dioxide

$ClO_2$

b) Di nitrogen tetra oxide

$N_2O_4$

c) Potassium phosphide

$H_2K_3P^{+2}$

d) Silver -Ag

e) Aluminium nitride - AlN

f) Silicon dioxide

$SiO_2$

I) Sulfide

$S^{2-}$

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HELP PLZ

mote1985 [20]

The correct answer ; coal
Why?
Coal forms over millions of years, not just that, even now, our earth doesnt have resources as it did millions of years ago to form coal in the first place

other options are renewable because it can be renewed over, and over again

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3 years ago

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yuradex [85]

Answer:

here is the answer, hope this helped!

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2 years ago

A plasma membrane and a cell wall _____.

klemol [59]

<h3>Answer;</h3>

D. Have different structures and different functions

A plasma membrane and a cell wall have different structures and different functions.

<h3>Explanation;</h3>

Plasma membrane is a structure that is found in both animal cell and plants cells. It is made up of a bi-layer consisting of lipid and proteins. Plasma membrane are semi-permeable which means the allow selective movement of materials in and out of the cell.

Cell wall, on the other hand is a structure that is found on plant cells and lacks in animal cell. It contains cellulose in its structure which enables it to be rigid and enhances it protect the cell from mechanical damage from harsh conditions such as pressure in the outside environment.

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3 years ago

Read 2 more answers

Identify the equations that show ionization. Check all that apply.

tigry1 [53]

Answer: B. HCl(g)+H2O(I)—>H3O+(aq)+Cl-(aq)

D. CO2(g)+2H2O(I)—>HCO3-(aq)+H3O+(aq)

Explanation: on edge

8 0

4 years ago

A substance has a volume of 20 mL and a density of 2.5 g/mL. What is its mass? (M=DxV)

myrzilka [38]

Answer:

Explanation:

mate u literally just have to substitute the values into ur formula. u would then get 20 times 2.5 which is 41

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3 years ago