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lilavasa [31]
2 years ago
5

Name:

Chemistry
1 answer:
Liono4ka [1.6K]2 years ago
4 0

Answer:

1. 505g is the mass of the aluminium.

2. The answer is in the explanation

Explanation:

1. To solve this question we need to find the volume of the rectangle. With the volume and density we can find the mass of the solid:

Volume = 7.45cm*4.78cm*5.25cm

Volume = 187cm³

Mass:

187cm³ * (2.702g/cm³) = 505g is the mass of the aluminium

2. When the temperature of a liquid increases, the volume increases doing the density decreases because density is inversely proportional to volume. And works in the same way for gases because the temperature produce more collisions and the increasing in volume.

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Explain how to calculate the number of grams in 5.50 x 1022 atoms.
Neporo4naja [7]

Answer:

See below

Explanation:

From periodic table, find Mole Weight of the element in question

 this is the grams of the element in Avagadro's Number (6.022 x 10^23)  of atoms

   (5.50 x 10^22) / (6.022 x 10^23)  x mole weight = grams

7 0
1 year ago
How many inner shell electrons does beryllium have?
stepladder [879]
Beryllium has two inner shell electrons
8 0
2 years ago
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In principle, the equilibrium in the dehydration of an alcohol could be shifted to the right be removal of water. Why is this ta
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Answer:

See explanation

Explanation:

In this case, we have to remember that if we want to remove water from the reaction vessel we have to heat the vessel. So, we can convert the liquid water into <u>gas water</u> and we can remove it from the vessel. In this case, the products of dehydration for both molecules are <u>(E)-4-methylpent-2-ene</u> and <u>cyclohexene</u> with boiling points of <u>59.2 ºC</u> and <u>89 ºC</u> respectively. The boiling point of water is <u>100 ºC</u>, therefore if we heat the vessel the products and water would leave the system, and the products would be lost.

See figure 1

I hope it helps!

3 0
3 years ago
Determine the molarity of a solution with a volume of 435. mL and 0.550 mol of solute dissolved.
lora16 [44]

Answer:

M = 1.26

Explanation:

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8 0
2 years ago
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Answer:

B

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