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pychu [463]
2 years ago
6

Match the following parts of an atom to their description.

Chemistry
1 answer:
Burka [1]2 years ago
5 0

Answer:

Neutron - non charged particle in nucleus

nucleus - composed of proton and Neutron

electron - negatively charged particle that moves around the nucleus

proton - positively charged particle in the nucleus.

Explanation:

these the are definitions of the terms

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A cylinder is filled with 10.0L of gas and a piston is put into it. The initial pressure of the gas is measured to be 209.kPa. T
disa [49]

Answer : The final pressure of the gas will be, 26.8 kPa

Explanation :

According to the Boyle's law, the pressure of the gas is inversely proportional to the volume of the gas at constant temperature of the gas and the number of moles of gas.

P\propto \frac{1}{V}

or,

PV=k

or,

P_1V_1=P_2V_2

where,

P_1 = initial pressure of the gas = 209 kPa

P_2 = final pressure of the gas = ?

V_1 = initial volume of the gas = 10.0 L

V_2 = final volume of the gas = 78.0 L

Now put all the given values in this formula, we get the final pressure of the gas.

209kPa\times 10.0L=P_2\times 78.0L

P_2=26.8kPa

Therefore, the final pressure of the gas will be, 26.8 kPa

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The EPA scientist measures the pH level in one area of a river to be lower than normal and writes that a pollutant must have bee
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Given a gas with an initial volume of 3.0 L and a temperature of 290 K, what is the final volume if the
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2. What would be the outcome of a unicellular organism that cannot maintain homeostasis? (1 point)
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Answer:

Option A = it dies

Explanation:

Homeostasis:

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While in case of multi cellular organisms all cells communicate with each other to maintain the homeostasis.

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