3 years ago

Prokaryotic cells and Eukaryotic cells both contain all 4 biomolecules. True or False

Chemistry

1 answer:

Allisa [31]3 years ago

8 0

The answer is false thank u

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This mineral is composed only of one element, carbon. It is listed as the hardest on MOHs' Scale of Hardness. Which mineral is t

choli [55]

Answer:

I think your answer is Apatite

Explanation:

3 0

3 years ago

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If 0.094 moles of magnesium react with excess oxygen, how many moles of magnesium oxide would be formed?

VMariaS [17]

The equation for this reaction is

$\text{Mg}+\text{O} \longrightarrow \text{MgO}$

This means that for every mole of magnesium consumed, 1 mole of magnesium oxide is produced.

So, the answer is <u>0.094</u> moles.

6 0

2 years ago

Calculate the number of sulfate ions in 41.65 g of aluminum sulfate.

scoray [572]

The number of sulfate ions : 2.2 x 10²³

<h3>Further explanation</h3>

Reaction

Al₂(SO₄)₃⇒2Al³⁺+3SO₄²⁻

mol Al₂(SO₄)₃(MW=342,15 g/mol) :

$\tt \dfrac{41.65}{342.15}=0.122$

mol of sulfate ions (SO₄²⁻)

$\tt 3\times 0.122=0.366$

1 mol = 6.02 x 10²³ particles (ions, molecules, atoms), so for 0.366 mol :

$\tt 0.366\times 6.02\times 10^{23}=2.20\times 10^{23}$

8 0

3 years ago

Different of an element have different numbers of neutrons.

inna [77]

Answer:

Isotopes

Explanation:

This is the definition of isotopes: they are atoms of the same element that contain different numbers of neutrons.

4 0

4 years ago

An ingredient that dissolves in a solution is called a

Marta_Voda [28]

Try solvent. I hope this helps!!!

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4 years ago