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Taya2010 [7]
3 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]3 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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What is the volume of a 5.30g piece of aluminum? The density for aluminum is 2.70gmL.
Blizzard [7]

The volume of the piece of aluminum is 1.96 mL

Explanation:

Density is the relationship of the mass of a substance and its volume.

In this case, the mass of aluminum is 5.30 g and the density is 2.70 g/mL

The formula to apply is;

D=M/V where D is density in g/mL, M is mass in g and V is volume in mL

2.70=5.30/V

V=5.30/2.70 =1.96 mL

Learn More

Density of a substance:brainly.com/question/12605423

Keywords: volume, aluminum,density

#LearnwithBrainly

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3 years ago
Save the ________ used to extract metals.
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Answer:

Save the *minerals* used to extract metals.

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2 years ago
PLEASE HELP ASAP!!!!
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3 years ago
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Calculate the molality of a 5.73 M ethanol (C2H5OH) solution whose density is 0.9327 g/mL.
Natalka [10]

Answer:

Molality = 8.57 m

Explanation:

Given data:

Molarity of solution = 5.73 M

density = 0.9327 g/mL

Molality of solution = ?

Solution:

Molality = moles of solute / kg of solvent.

Kg of solvent:

Mass of 1 L solution = density× volume

Mass of 1 L solution = 0.9327 g/mL × 1000 mL

Mass of 1 L solution = 932.7 g

Mass of solute:

Mass of 1 L = number of moles  × molar mass

Mass = 5.73 mol  × 46.068 g/mol

Mass = 263.97 g

Mass of solvent:

Mass of solvent = mass of solution - mass of solute

Mass of solvent = 932.7 g - 263.97 g

Mass of solvent = 668.73 g

In Kg = 668.73 /1000 = 0.6687 Kg

Molality:

Molality = number of moles of solute / mass of solvent in Kg

Molality = 5.73 mol /  0.6687 Kg

Molality = 8.57 m

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2 years ago
How to make a sugar cube dissolve more quickly in water?
Vesna [10]
Heat the water up a little
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3 years ago
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