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3 years ago

Write the formula for compound formed between pb^2+O^2

Chemistry

1 answer:

Zarrin [17]3 years ago

7 0

Its what the formula of a coupon between PB to plus plus to

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Atom A has 32 protons and 35 neutrons. atom B has 32 protons and 33 neutrons. are they isotopes?

Anna007 [38]

Yes because the protons are the same but the neutrons change

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3 years ago

A 8.65-L container holds a mixture of two gases at 11 °C. The partial pressures of gas A and gas B, respectively, are 0.205 atm

Vsevolod [243]

The total pressure = 1.402 atm

<u><em>calculation</em></u>

Total pressure = partial pressure of gas A + partial pressure of gas B + partial pressure of third gas

partial pressure of gas A= 0.205 atm

Partial pressure of gas B =0.658 atm

partial pressure for third gas is calculated using ideal gas equation

that is PV=nRT where,

p(pressure)=? atm

V(volume) = 8.65 L

n(moles)= 0.200 moles

R(gas constant)=0.0821 L.atm/mol.k

T(temperature) = 11°c into kelvin =11+273 =284 k

make p the subject of the formula by diving both side by V

p =nRT/v

p = [(0.200 moles x 0.0821 L.atm/mol.K x 284 K)/8.65L)] =0.539 atm

Total pressure is therefore = 0.205 atm +0.658 atm +0.539 atm

=1.402 atm

6 0

3 years ago

What are the primary components of rocks?

Butoxors [25]

The primary components of rocks are minerals.

4 0

3 years ago

On the moon the acceleration due to gravity is 1.6 ms if an object has a mass on earth of 5.1kg what is its mass on the moon

Y_Kistochka [10]

Answer:

Mass on the moon is 5.1 kg.

Explanation:

Given mass on earth = 5.1 kg

acceleration due to gravity on moon = 1.6 ms⁻².

The mass on the moon does not change because mass is the quantity of matter in the body regardless of its volume or of any forces acting on it.

Whereas the weight of the object changed.

Weight is the the force exerted on a body which is related to mass and expressed as W = mg.

W = weight of object m = mass of object and g = gravitational force

$So\ in\ this\ case\ W\ =1.6\times\ 5.1\ =8.16N$

N stands for newton unit of weight.

Thus mass of the object on moon is same as on earth which is 5.1 kg.

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3 years ago

Nuclear power plants require large volumes of____ to cool reactors and convert heat to electricity.

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B water to cool the plant

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2 years ago