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4 years ago

Cars use ______ to reduce nitrogen oxide emissions.

Chemistry

1 answer:

kirza4 [7]4 years ago

8 0

The answer is catalytic converters.

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Please type in the bonus code you received after getting 100% on Unit 2 practice test. Please helppp!!!

STatiana [176]

Answer:

Explanation:

5 0

3 years ago

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Why are some compounds that contain carbon not considered as organic compounds?

Arlecino [84]

Because it may not contain Hydrogen or Oxygen

7 0

3 years ago

A titanium cube contains 2.86Ã—1023 atoms. What is the edge length l of the cube? The density of titanium is 4.50 g/cm3 . (The v

elena55 [62]

Answer:

I = 1.716 cm

Explanation:

We want the length of the cube. In this case, we know that the volume of a cube is:

V = I³

From here we can solve for I:

I = ∛V (1)

Now, the volume can be obtained using data of density. The expression for density is:

d = m/V

Solvinf for V:

V = m/d (2)

The mass of the cube, can be obtained with the moles and molar mass of titanium:

m = n * MM (3)

And finally, the moles (n) can be obtained using avogadro number:

1 mol ----> 6.02x10²³ atoms (4)

Therefore, to get the length we need to calculate with the atoms of titanium, the moles, then mass, volume and finally the length. Let's calculate the moles of titanium using the ratio of (4):

nTi = 2.86x10²³ / 6.02x10²³ = 0.475 moles

Now, let's calculate the mass using (3) and the molecular mass of titanium which is 47.867 g/mol:

m = 0.475 * 47.867 = 22.737 g

Let's replace this value in (2) to get the volume:

V = 22.737 / 4.5 = 5.053 cm³

Finally, the length using (1):

I = ∛5.053

I = 1.716 cm

This is the length of the cube

4 0

4 years ago

32:53

Butoxors [25]

Answer:

A solution

Explanation:

Mainly because a solution is a mixture of chemically bonded elements.

3 0

3 years ago

The cycle repeats when the carbon stored in the atmosphere as carbon dioxide gas is taken in.

Rzqust [24]

Answer:

Order of the cycle:

Step -1>>>>Step -4 >>>> Step -3 >>>>> step -2.

Explanation:

Step -1:

Carbon dioxide is taken in by plants during photosynthesis.

Step -4;

The animal eats a plant and uses its carbohydrates for energy.

Step - 3

The animal releases the carbon dioxide back into the atmosphere during respiration.

Step -2

The cycle repeats when the carbon stored in the atmosphere as carbon dioxide gas is taken in.

Therefore, order of the cycle is Step -1>>>>Step -4 >>>> Step -3 >>>>> step -2.

5 0

3 years ago

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