3 years ago

TWO QUESTIONS! NEED HELP PLEASEEE

1 answer:

8 0

First question I believe is B

The second one is also B

I really hope it helped

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gogolik [260]

<em>hey, im jordan :)</em>

the SI unit for the mass of subatomic particles is <u>amu (atomic mass unit)</u>

<em>hope this helps!</em>

<em>have a great day :D</em>

4 0

2 years ago

mr_godi [17]

The formula for magnesium chlorate is Mg(ClO3)2.

5 0

2 years ago

LUCKY_DIMON [66]

"Increase Pressure " is the right answer. if you need help , let me know

4 0

2 years ago

Law Incorporation [45]

Substance P replaces X in the compound XY

this is the characteristic of decomposition reaction

6 0

2 years ago

adell [148]

The sample with the largest number of oxygen atoms will be calcium perchlorate.

<h3>Number of atoms in a compound</h3>

Since we are not looking at the number of moles, the mass of the compounds has no bearing on the number of atoms of oxygen.

The chemical formula for carbon dioxide is $CO_2$ . Thus, it has 2 atoms of oxygen.
The chemical formula for potassium chlorate is $KClO_3$ . Thus, it has 3 oxygen atoms.
The chemical formula for calcium perchlorate is $Ca(ClO_4)_2$ . Thus, it has 8 atoms of oxygen.
The chemical formula for sodium hydroxide is NaOH. Thus, it has 1 atom of oxygen.

Therefore, the compound with the largest number of oxygen atoms is calcium perchlorate.

More on the number of atoms in compounds can be found here: brainly.com/question/1686912

#SPJ1

5 0

1 year ago