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Triss [41]
3 years ago
5

The symbol of an element is represented by (a) Calculate the number of neutrons in the atom of X. [1mark] (b) State the number o

f electrons in the atom of X.[1mark] (c) Write the electronic configuration of X.

Chemistry
1 answer:
aliina [53]3 years ago
3 0

Answer:

The question is incomplete.

A sample question and solution is given below.

Check the attachment for explanation.

Explanation:

Check the attachment below

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What is the definition of a Lewis acid?
Vedmedyk [2.9K]

Answer:

Explanation:

Un ácido de Lewis es una especie química que contiene un orbital vacío que es capaz de aceptar un par de electrones de una base de Lewis para formar un aducto de Lewis

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Materials move across a cell membrane in a process called _______.
maxonik [38]

Answer:

Diffusion

Explanation:

5 0
3 years ago
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How much mass do 2.0 moles of uranium contain
jasenka [17]
The answer is going to be 476.06.
8 0
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Complete by describing what the change of the state of the matter will be for the process to occur
Brilliant_brown [7]

Answer:

Freezing: Liquid turns into solid. Evaporation: Liquid turns into gas. Condensation: Gas turns into liquid. Sublimation: solid into gas. Deposition: Gas into solid.

Explanation:

4 0
3 years ago
Which chemical equation demonstrates the law of conservation of mass!
zlopas [31]

Answer:

F. 2NO + 02 —> 2NO

H. 4NH3 + 502 —> 4NO + 6H20

Explanation:

The law of conservation of mass states that matter can neither be created nor destroyed during a chemical reaction but can be convert from one form to another.

2NO + 02 —> 2NO

From the above, the total number of N on the left balance the total number on the right i.e 2 atoms of N on both side of the equation.

The total number of O on the left balance the total number on the right i.e 2 atoms of O on both side of the equation. This is certified by the law of conservation of mass.

4NH3 + 502 —> 4NO + 6H20

From the above, the total number of N on the left balance the total number on the right i.e 4 atoms of N on both side of the equation.

The total number of O on the left balance the total number on the right i.e 10 atoms of O on both side of the equation.

The total number of H on the left balance the total number on the right i.e 12 atoms of O on both side of the equation.

This is certified by the law of conservation of mass.

The rest equation did not conform to the law of conservation of mass as the atoms on the left side did not balance those on the right side

5 0
3 years ago
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