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3 years ago

What is chemistry?

Chemistry

2 answers:

Volgvan3 years ago

8 0

Answer:

the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.

Explanation:

hope this helps mark me as brainliest

Shkiper50 [21]3 years ago

6 0

Answer: chemistry is love ❤️ #bae

Explanation: ok just kidding. The dictionary says chemistry is the scientific discipline with elements and compounds of atoms, molecules, and ions

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One mole of an atom of a substance is equal to

solong [7]

Answer:

One mole of a substance is equal to 6.022 × 10²³ units of that substance (atoms, molecules, or ions)

Explanation:

This number is Avogadro's number. The concept of the mole can be used to convert between mass and number of particles. its used to compare very large numbers.

4 0

3 years ago

Our good friend and pseudo scientist, homer simpson, attempts to analyze 300 mg of an unknown compound containing only c and h b

iragen [17]

$C_{x}H_{y} + O_{2} --\ \textgreater \ x CO_{2} + \frac{y}{2} H{2}O

540mg H_{2}O* \frac{1 mmol H_{2}O}{18 mg H_{2}O} =30 mmol H_{2}O

\\ \\30 mmolH_{2}O -have - 60 mmol H
\\ \\ 60 mmol H* \frac{1mg H}{1 mmol H} =60 mg H
\\ \\300mg C_{x}H_{y} - 60 mg H= 240 mg C
\\ \\ 240 mgC* \frac{1mmol}{12mg} =20 mmol C

20 mmol C: 60 mmol H=1 mol C : 3 mol H

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7 0

3 years ago

As the amount of charge on two objects increases, the strength of the electrical force between the objects

Aleks [24]

Answer:

Increase is the answer

Explanation:

Increase is the answer hopes this helps you

6 0

2 years ago

Read 2 more answers

With regard to wind, describe the time of day that an early explorer might have planned to enter a harbor and when he might have

Zielflug [23.3K]

I would he would try to enter as the tide is rising, and leave as the tide is falling. Those things happen at all different times of day during a month. Hope it helps!!

3 0

3 years ago

Read 2 more answers

AWNSER FAST PLEASE

Ann [662]

Answer: The coefficients are 2, 2 and 1.

Explanation: According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants.

The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced chemical equation for the given reaction is:

2H2o➡️2h2+o2

3 0

2 years ago

What is chemistry? ​

What is chemistry?