3 years ago

Which of the following are organic compounds?

Chemistry

1 answer:

KIM [24]3 years ago

3 0

I think methane and propane

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Movement caused by warmer fluids rising and cooler fluids sinking is called ______________.

Elina [12.6K]

Answer:

I think it's Convection current.

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2 years ago

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Calculate the percent by mass of carbon in CO2 (carbon dioxide).

FromTheMoon [43]

Answer:

The answer to your question is 27.3 %

Explanation:

Percent by mass = ?

Process

1.- Calculate the atomic mass of carbon using the periodic table

Atomic mass = 12g

2.- Calculate the molecular mass of CO₂.

Carbon = 12

Oxygen = 16 x 2 = 32

Total = 12 + 32 = 44g

3.- Calculate the percent by mass of carbon using proportions

44g -------------------- 100%

12 g ------------------- x

x = (12 x 100) / 44

x = 1200 / 44

x = 27.3 %

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3 years ago

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slavikrds [6]

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For the reaction N2(g) + 3H2(g) 2NH3(g), what will happen if more nitrogen gas is added?

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Explanation:

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3 years ago

This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel refining):nico4a chemical en

lesya [120]

Answer : There are 7.0 moles of oxygen in the formula.

Explanation :

The chemical formula of nickel tetracarbonyl is Ni(CO)₄.

We can see that there are 4 carbon atoms and 4 oxygen atoms which together form 4 carbonyl (CO) groups.

Therefore the mole ratio of C to O is 1 : 1.

Let us use this as a conversion factor to find moles of oxygen.

We have 7.0 moles of carbon in the formula.

The moles of O can be calculated as,

$7 mol C \times \frac{1 mol O}{1 mol C} = 7.0 mol O$

There are 7.0 moles of oxygen in the formula.

8 0

3 years ago