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RoseWind [281]
3 years ago
13

Which statement is true about molecules and compounds?

Chemistry
2 answers:
OleMash [197]3 years ago
5 0
I believe B is your answer.

Hope this helps! 
alexandr1967 [171]3 years ago
3 0

Answer:

Both are made of two or more atoms.

Explanation:

A compound is two elements that are mixed together, no matter the amount element that it´s in the compound, it can be from 2 atoms to thousands of tons, those are still compounds, and molecules are 2 atoms of the same element that are together, so both are made 2 or more atoms, in the case of the molecule its two atoms of the same element, and in the case of the compound is two atoms of different elements.

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Why is melting point considered a physical property
miskamm [114]

Answer:

Because you can physically see the object melting when it comes to the melting point. The objects texture, color, temperature, shape, and state of matter (solid, liquid, gas) are possibly changing.

6 0
3 years ago
Which of the following is the simplest ketone used as an organic solvent?
Lyrx [107]

Answer: Option (d) is the correct answer.

Explanation:

A ketone is an organic functional group that contains a carbon and oxygen atom bonded together through a double bond, that is, C=O.

For example, acetone CH_{3}-CO-CH_{3} is a ketone.

Whereas a hydrocodone is a drug which is used to relieve from moderate to sever pain.It is mostly combined with other drugs and resulting in a chemical formula C_{18}H_{21}NO_{3}.C_{4}H_{6}O_{6}.

A camphor is a volatile white color substance with chemical formula C_{10}H_{16}O. It has aromatic smell and its taste is bitter.

A menthone is also an organic compound with chemical formula C_{10}H_{18}O.

Thus, we can conclude that out of the given options the simplest ketone used as an organic solvent is acetone.

3 0
3 years ago
You have a 25.2 L sample of gas at 1.25 atm and 25.0 degrees Celsius. How many moles are present in this gas. For your answer, p
Elenna [48]

Answer:

  • <u>1.29 mol</u>

Explanation:

This is a direct application of the equation for ideal gases.

  • PV=nRT

Where:

  • P = pressure = 1.25 atm
  • V = volume = 25.2 liter
  • R = Universal constant of gases = 0.08206 atm-liter/K-mol
  • T = absolute temperature = 25.0ºC = 25 + 273.15 K = 298.15 K
  • n = number of moles

Solving for n:

  • n=\frac{PV}{RT}

Substituting:

n=\frac{1.25atm\times 25.2liter}{0.08206atm-liter/K-mol\times298.15K }\\\\n=1.29mol

8 0
3 years ago
A neutral Atom of silicon-30 contains 14 protons . How many electrons does it have ?
svetoff [14.1K]

14 right??? i hope this helps

3 0
3 years ago
Help <br> whoever answers all gets marked brainliest
Lelechka [254]

#1

  • See H and C have shared their electrons so it's Covalent bonding

#2

Yes here we can see the dots and crosses clearly.

  • Dot and crosses digram

#3

It's Methane or CH_4

  • 4 single bonds

#4

There is no double bond

6 0
3 years ago
Read 2 more answers
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