2 years ago

What does the prefix non-represent?

Chemistry

1 answer:

atroni [7]2 years ago

8 0

Answer:

O 9 carbon atoms, only

Explanation:

Prefix: non- simply means 9.

Suffix: -ene means double bond, -yne means triple bond, and -ane means single bonded carbons.

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Convert 8.876 × 10^12 m^2 to units of km^2.

Darya [45]

Answer:

$8.876\times 10^{18}\ km^2$

Explanation:

In this problem, we need to convert $8.876 \times 10^{12}\ m^2$ to km².

We know that,

1 km = 1000 m

⇒ 1 km² = 10⁶ m²

So,

$8.876 \times 10^{12}\ m^2=8.876 \times 10^{12}\times 10^6\ km^2\\\\=8.876\times 10^{18}\ km^2$

So, $8.876 \times 10^{12}\ m^2$ is equal to $8.876\times 10^{18}\ km^2$ .

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2 years ago

How many grams of lithium sulfide must be dissolved in 1600.0 g water to make a 2.0 molal solution?

klasskru [66]

Molality is the number of moles of solutes in 1 kg of solvent.
the molality of solution to be prepared is 2.0 molal.
therefore 2 moles in 1 kg water.
the mass of Li₂S required is - 46 g/mol x 2.0 mol = 92 g
the mass in 1 kg of solvent is - 92 g
Therefore mass of Li₂S required in 1600.0 g is - 92 g/kg x 1.6 kg = 147.2 g

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2 years ago

Which of the following is a correct statement about collision theory?

rjkz [21]

The answer is D. Effective collisions lead to chemical reactions!

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2 years ago

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Can you guys help me please!!!!

Masteriza [31]

Answer:

i think it is true