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Taya2010 [7]
4 years ago
10

Explain the observed pattern of how the sizes and charges of atoms change with the addition and subtraction of electrons. ( NEED

ANSWER ASAP)
Chemistry
1 answer:
siniylev [52]4 years ago
3 0
Atoms are the smallest particles of matter.​
b. The mass of an iron atom is different from the mass of a copper atom.​
c. Every atom of silver is identical to every other atom of silver.​
d. A compound is composed of atoms of two or more different elements.​
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C is the answer because that is an actual chemical change where the sulfur and iron are not separate from each other anymore
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How to find change in enthalpy
arlik [135]
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5 0
3 years ago
A container of gas occupies 3.5 L at 585 mmHg. What would the new pressure be if the volume decreases to 2.0L?
kodGreya [7K]

Answer:

1023.75mmHg

Explanation:

V1 = 3.5L

P1 = 585mmHg

V2 = 2.0L

P2 = ?

To solve this question, we'll require the use of Boyle's law which states that the volume of a fixed mass of gas is inversely proportional to its pressure provided that temperature is kept constant.

Mathematically,

V = kP, k = PV

P1 × V1 = P2 × V2 = P3 × V3 = .......= Pn × Vn

P1 × V1 = P2 × V2

Solve for P2,

P2 = (P1 × V1) / V2

P2 = (585 × 3.5) / 2.0

P2 = 2047.5 / 2.0

P2 = 1023.75mmHg

The final pressure of the gas is 1023.75mmHg

5 0
3 years ago
Ethanol is one of many toxic substances found in tobacco smoke. <br><br> a. True <br> b. False
maks197457 [2]

The statement is False.

Ethanol is one of many toxic substances found in tobacco smoke.

Ethanol is used in the manufacture of drugs, plastics, lacquers, polishes, plasticizers, and cosmetics. Ethanol is utilized in remedy as a topical antiinfective, and as an antidote for ethylene glycol or methanol overdose.

Ethanol is a natural chemical compound. it's far simple alcohol with the chemical formula C₂H₆O. Its system can be additionally written as CH ₃−CH ₂−OH or C ₂H ₅OH and is frequently abbreviated as EtOH. Ethanol is a risky, flammable, colorless liquid with a characteristic wine-like smell and pungent taste.

Within the worst instances, there can also be respiratory problems, low blood strain, incontinence coronary heart troubles, blood troubles, liver damage, and loss of life. Ethanol can also dry out and worsen the skin; there may be aches, redness, and swelling. Eye publicity to ethanol also can purpose tearing, burning, and stinging.

Learn more about Ethanol here brainly.com/question/842893

#SPJ4

5 0
2 years ago
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