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marusya05 [52]
3 years ago
9

Which focuses on the composition of matter

Chemistry
1 answer:
riadik2000 [5.3K]3 years ago
3 0
There is no info for anyone to answer this
You might be interested in
A
BARSIC [14]

The number of C atoms in 0.524 moles of C is 3.15 atoms.

The number of SO_2 molecules in 9.87 moles  SO_2 is 59.43 molecules.

The moles of Fe in 1.40 x 10^{22} atoms of Fe is 0.23 x 10^{-1}

The moles of C_2H_6O in 2.30x10^{24} molecules of C_2H_6O is 3.81.

<h3>What are moles?</h3>

A mole is defined as 6.02214076 × 10^{23} of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

A. The number of C atoms in 0.524 mole of C:

6.02214076 × 10^{23} x 0.524 mole

3.155601758 atoms =3.155 atoms

B. The number of SO_2 molecules in 9.87 moles of SO_2:

6.02214076 × 10^{23} x 9.87

59.4385293 molecules= 59.43 molecules

C. The moles of Fe in 1.40 x 10^{22} atoms of Fe:

1.40 x 10^{22} ÷ 6.02214076 × 10^{23}

0.2324754694 x 10^{-1} moles.

0.23 x 10^{-1} moles.

D. The moles of C_2H_6O in 2.30x10^{24} molecules of C_2H_6O:

2.30x10^{24} ÷ 6.02214076 × 10^{23}

3.819239854 moles=3.81 moles

Learn more about moles here:

brainly.com/question/8455949

#SPJ1

6 0
2 years ago
Why is hydrogen placed with the elements in group 1a??
N76 [4]
Because it has atomic no. = 1 (according to modern periidic table)
5 0
4 years ago
Need Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Brilliant_brown [7]

Answer:

what do you need

Explanation:

6 0
3 years ago
Read 2 more answers
What is the product of a force and the time during which the force acts
ELEN [110]

Impulse is the product of a force and the time during which that force acts on a body.

7 0
3 years ago
What is the mass of an atom that has 9 protons, 11 neutrons, and 10 electrons
Anastaziya [24]

Answer: By looking at the periodic table, you will see that Fluorine has 9 protons. Since the number of electrons equal the number of protons, Fluorine has 9 electrons as well. Meanwhile, it's mass number of 19, minus 10 neutrons, gives you 9 protons or electrons. Hence, the atom would be Fluorine.

Explanation:

6 0
3 years ago
Read 2 more answers
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