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1 year ago

Why is the first one (A) correct?

Chemistry

1 answer:

skelet666 [1.2K]1 year ago

6 0

Answer: yes it is correct

Explanation: the higher it is the cooler.

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Why is it important for you to learn where the safety equipment is located in the lab?

Mariana [72]

It is really very important to know where the safety equipments are placed in lab because when we know it then accident wont occur in lab . it will also helps us to feel secure while doing any kinds of experiment

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2 years ago

A molecule of acetone and a molecule of propyl aldehyde are both made from 3 carbon atoms, 6 hydrogen atoms, and 1 oxygen atom.

TEA [102]

Explanation:

The structures of both acetone and propanal are shown below:

In the formula of propanal there is -CHO functional group at the end.

In acetone -CO- group is present in the middle that is on the second carbon.

The molecular formula is C3H6O.

Both have same molecular formula but different structural formulas.

7 0

2 years ago

A foce that pushes or pulls is known as

Radda [10]

Answer:

Newton 3rd Law of Motion or the Law of Force Pairs

(An applied force)

3 0

2 years ago

What is the charge for MnO4

lakkis [162]

Answer:

Mn = 2+, O = -2

Explanation:

3 0

2 years ago

What is the molar mass of CaCl2?

Aleks04 [339]

Answer: The molar mass of the given compound is $1.11\times 10^2 g/mol$

Explanation:

In molecular formula of $CaCl_2$ there are two chlorine atoms and one calcium atom.

The atomic mass of the calcium = 40.07 g/mol

The atomic mass of chlorine = 35.5 g/mol

Molar mass of the guven compound is :

$40.07 g/mol + 2\times 35.5 g/mol=111.07 g/mol\approx 1.11\times 10^2 g/mol$

The molar mass of the given compound is $1.11\times 10^2 g/mol$

8 0

2 years ago