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ahrayia [7]
3 years ago
15

What is the weight of a rock that has a mass of 5.0 kg ?

Chemistry
1 answer:
Orlov [11]3 years ago
4 0

Answer:

49 Newtons

Explanation:

The weight of the rock is the product of it's mad and the acceleration due to the earth's gravity(which is 9.8 meters per squared second)

So 5.0kg times 9.8 equals 49 Newtons.

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Which pair shares the same empirical formula? C2H4 and C6H6 CH2 and CH4 CH3 and C2H6 CH and C2H4
hoa [83]

Answer:

CH3 and C2H6

Explanation:

4 0
3 years ago
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Help pls , question is in picture
Nata [24]

Explanation:

IM PRETTY SURE IT IS D !! IF ITS WRONG IM SORRY THAT WHAT

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8 0
3 years ago
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How many moles of chlorine gas and 120°C and 33.3 ATM would occupy a vessel of 12 L?
Mashutka [201]
<h3>Answer:</h3>

12.387 moles

<h3>Explanation:</h3>

We are given;

Temperature of chlorine, T = 120°C

But, K = °C + 273.15

Therefore, T = 393.15 K

Pressure, P = 33.3 Atm

Volume, V = 12 L

We are required to calculate the number of moles of chlorine gas,

To find the number of moles we are going to use the ideal gas equation;

PV = nRT

R is the ideal gas constant, 0.082057 L.atm/mol.K

Therefore, rearranging the formula;

n = PV÷RT

Hence;

n = (33.3 atm × 12 L) ÷ (0.082057 × 393.15 K)

  = 12.387 moles

Therefore, the number of moles of chlorine are 12.387 moles

8 0
3 years ago
How many grams of NH3 can be produced from 4.98 mol of N2 and excess H2
neonofarm [45]
169.32 grams of NH3 ........
3 0
3 years ago
The earth formed 4600 million years ago. What percentage of the Earth’s age has the atmosphere been its current composition
nata0808 [166]

Answer: 4.35%

Explanation:

Scientists estimate that the current composition of gases in the Earth's atmosphere has been stable for the last 200 million years or so.

If the Earth was formed 4,600 million years ago then the percentage of her age that the atmosphere has been in its composition is:

= 200 / 4,600 * 100%

= 4.35%

4 0
3 years ago
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