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GarryVolchara [31]
3 years ago
6

Please help I only have 5 hours left​

Chemistry
1 answer:
Yakvenalex [24]3 years ago
5 0

Answer:

i think b or c

Explanation:

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Answer:

5

Explanation:

Carbon tetrachloride has molecular formula as  CCl4 , so from this it is evident that there are 4 atoms of Chlorine & 1 atom of carbon is present, in total 5 molecules are present in carbon tetra

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Select the correct answer. A substance is followed by the symbol (/) in a chemical equation. What does the symbol represent?​
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How many protons, electrons, and neutrons does an atom with atomic number 50 and a mass number of 125 contain?
EleoNora [17]

Answer:

a) 50 protons, 50 electrons, 75 neutrons

Explanation:

How many protons, electrons, and neutrons does an atom with atomic number 50 and a mass number of 125 contain?

a) 50 protons, 50 electrons, 75 trons

b) 75 electrons, 50 protons, 50 neutrons

c) 120 neutrons, 50 protons, 75 electrons

atomic number IS the number of protons

atomic mass IS the total of protons + neutrons

so 50 protons

125-50 = 75 neutrons

in a neutral atom,

number of negative electrons = number of positive protons

a) 50 protons, 50 electrons, 75 neutrons

3 0
3 years ago
If the temperature of an ideal gas is raised from 100◦C to 200◦C, while the pressure remains constant, the volume 1. increases b
mel-nik [20]

Answer:

3. doubles

Explanation:

for an ideal gas behavior, the relationship between volume and temperature is given by Charles law

Charles law states that the volume of a given mass of gas is directly proportional to its temperature provided that pressure remains constant. Mathematically, this is represented as

V ∝ T

V=KT

K = V/T

where V is the volume of the gas

T is the Temperature

k represents the constant of proportionality

For initial and final conditions of a gas,

\frac{V_{1} }{T_{1} } = \frac{V_{2} }{T_{2} }

where 1 and 2 represent initial and final conditions respectively

therefore, T₁ = 100 and T₂ = 200

\frac{V_{1} }{100} = \frac{V_{2} }{200}

200 × V₁ = 100 × V₂

divide both sides by 100

2V₁ = V₂

final volume,V₂ = 2V₁

there the volume doubles

3 0
3 years ago
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