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svetlana [45]
3 years ago
6

ANSWER THESE 5 MULTPLE CHOICE QUESTIONS!!! I'LL GIVE 30 POINTS AND A BRAINIEST:)

Chemistry
1 answer:
Mamont248 [21]3 years ago
4 0

Answer:

Question 1 - A and C

Question 2 - B and C

Question 3 - A and D

Question 4 - A and B

Question 5 - A and C

Explanation:

BRAINLIEST PLEASE

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Word Bank: automobiles, fossil fuels, plastic packaging, planes, trains _________________________ requires oil to create it.
Ymorist [56]
Plastic packaging requires oil to create it
7 0
3 years ago
PLZ HELP IM CONFUSED
Marina CMI [18]

Answer:

9.1 mol

Explanation:

The balanced chemical equation of the reaction is:

CO (g) + 2H2 (g) → CH3OH (l)

According to the above balanced equation, 2 moles of hydrogen gas (H2) are needed to produce 1 mole of methanol (CH3OH).

To convert 36.7 g of hydrogen gas to moles, we use the formula;

mole = mass/molar mass

Molar mass of H2 = 2.02g/mol

mole = 36.7/2.02

mole = 18.17mol

This means that if;

2 moles of H2 reacts to produce 1 mole of CH3OH

18.17mol of H2 will react to produce;

18.17 × 1 / 2

= 18.17/2

= 9.085

Approximately to 1 d.p = 9.1 mol of methanol (CH3OH).

6 0
3 years ago
11. What is the maximum number of electrons that an atomic orbital can contain?
Arada [10]

Answer:

2

Explanation:

Each orbital can hold two electrons. One spin-up and one spin-down.

6 0
4 years ago
Which is an example of a pure substance? A. coffee B. helium C. vinegar D. trail mix
bogdanovich [222]

B. Helium

It has only He atoms

5 0
3 years ago
Calculate the theoretical yield of benzoin assuming you begin with 13.7 mL of benzaldehyde and assuming that the density of benz
gulaghasi [49]

Answer:

the theoretical yield of benzoin = 14.3165g

Explanation:

The steps is as shown in the attachment.

5 0
3 years ago
Read 2 more answers
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