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2 years ago

Need help with this worksheet

Chemistry

1 answer:

Inessa [10]2 years ago

3 0

So you have to draw a line throw the papa per

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Chemistry and physics are so closely related that sometimes the fields overlap. Which of the following experiments might both ch

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3 years ago

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How much force is required to lift a rock a vertical distance of 8 m if 80 j of work were done

yanalaym [24]

we have

work done (W)= force(F) × displacemen(s)

or, 80= F× 8

or, F= 10 N

therefore, 10 N force is required to lift the rock.

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3 years ago

16 Which two gases can not be broken down by chemical means?(1) CO and He (3) Xe and He

lyudmila [28]

The answer is (2) CO and NH3. The chemical reaction can only break down chemical bonds between atoms inside the molecule. The He and Xe is consists of one atom only, so they can not be broken down by chemical means.

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3 years ago

At what temperature (°C) will a 10.00 g sample of neon gas exert a pressure of 96.7 kPa in a

Eva8 [605]

Answer : The temperature of neon gas will be, 221.0 K

Explanation :

To calculate the temperature of neon gas we are using ideal gas equation.

$PV=nRT\\\\PV=\frac{w}{M}RT$

where,

P = pressure of neon gas = 96.7 kPa = 0.955 atm

Conversion used : (1 atm = 101.3 kPa)

V = volume of neon gas = 9.50 L

T = temperature of neon gas = ?

R = gas constant = 0.0821 L.atm/mole.K

w = mass of neon gas = 10.00 g

M = molar mass of neon gas = 20 g/mole

Now put all the given values in the ideal gas equation, we get:

$(0.955atm)\times (9.50L)=\frac{10.00g}{20g/mole}\times (0.0821L.atm/mole.K)\times T$

$T=221.0K$

Therefore, the temperature of neon gas will be, 221.0 K

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3 years ago

ANSWER ASAP GIVING BRAINLIEST!

Yuri [45]

Answer:

Explanation:

the difference between electric generators and electric motors are easy to find. An electric motor converts electricity into mechanical energy. A electric generator does the opposite by converting mechanical energy into electricity.

hope this helps!

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3 years ago