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3 years ago

Organic compounds that are synthesized by human cells

1 answer:

4 0

Organic compounds essential to human functioning include carbohydrates, lipids, proteins, and nucleotides. These compounds are said to be organic because they contain both carbon and hydrogen.

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How many molecules are in 5 moles of C10H210?

Pavlova-9 [17]

Answer:

3.0 x 10²⁴molecules

Explanation:

Given parameters:

Number of moles of compound = 5moles

Unknown:

Number of molecules = ?

Solution:

A mole is substance that contains the Avogadro's number of particles;

1 mole = 6.02 x 10²³ molecules

5 moles of the compound will give 5 x 6.02 x 10²³ molecules

= 3.0 x 10²⁴molecules

3 0

3 years ago

A student balanced the chemical equation Mg + O2 →MgO by writing Mg + O2 → MgO2. Was the equation balanced correctly? Explain yo

Amanda [17]

Explanation:

Charges on both magnesium and oxygen is 2. Though opposite in sign, they have equal charges so, both of them will be cancelled by each other.

As a result, formula of magnesium oxide is MgO and not $MgO_{2}$ .

The student write the equation as $Mg + O_2 \rightarrow MgO_2$ , it is not correct.

Therefore, given equation will be balanced as follows.

$2Mg + O_{2} \rightarrow 2MgO$

Since, number of atoms on both reactant and product side are equal. Hence, this equation is completely balanced.

7 0

3 years ago

Why phosphorus forms 3 bonds in molecule such as PH3 and PCl3-

gregori [183]

Phosphorous has three lone electrons that need pairing. Similar to how carbon has 4 lone electrons, and forms CH4

6 0

3 years ago

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How many grams oxygen are present in 76.8g of CO2

katrin [286]

There would be 55.8 g present

8 0

3 years ago

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Give an example of a change that would be a chemical change but not a physical change.

Annette [7]

Answer:

digesting food

Explanation:

you dont see it

4 0

3 years ago

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