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Helen [10]
3 years ago
13

The gold metal is heated, pounded and shaped until it forms a wedding ring.

Chemistry
1 answer:
disa [49]3 years ago
7 0

Answer:

physical change

Explanation:

it it was just heated up and change into a different form

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The atomic mass of beryllium (Be) is 9.01 amu. The atomic mass of calcium (Ca), which is in the same group as beryllium, is 40.0
bekas [8.4K]
Mg will have a higher amu than Be but a lower amu than Ca.
8 0
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Please help it’s a test due in five minutes! I’ll give 10 points
barxatty [35]

Answer: negative acellaration or mass.

Explanation:

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3 0
2 years ago
The temperature of the water was measured at different depths of a pond.
rusak2 [61]
A. Dependent variable
8 0
3 years ago
Compound X has a molar mass of 416.48 g mol
bazaltina [42]

Answer:

P₂Cl₁₀

Explanation:

From the question given above, the following data were obtained:

Molar mass of compound X = 416.48 g/mol

Percentage of phosphorus (P) = 14.87%

Percentage of Chlorine (Cl) = 85.13%

Molecular formula of X =?

Next, we shall determine the empirical formula of compound X. This can be obtained as follow:

P = 14.87%

Cl = 85.13%

Divide by their molar mass

P = 14.87 / 31 = 0.480

Cl = 85.13 / 35.5 = 2.398

Divide by the smallest

P = 0.480 / 0.480 = 1

Cl = 2.398 / 0.480 = 5

Empirical formula of compound X is PCl₅

Finally, we shall determine the molecular formula of compound X. This can be obtained as follow:

Molar mass of compound X = 416.48 g/mol

Empirical formula = PCl₅

Molecular formula =?

Molecular formula= [Empirical formula]ₙ

[PCl₅]ₙ = 416.48

[31 + (35.5 × 5)]ₙ = 416.48

[31 + 177.5]n = 416.48

208.5n = 416.48

Divide both side by 208.5

n = 416.48 / 208.5

n = 2

Molecular formula = [PCl₅]ₙ

Molecular formula = [PCl₅]₂

Molecular formula = P₂Cl₁₀

Therefore, the molecular formula of compound X is P₂Cl₁₀

4 0
3 years ago
Which is an example of an atom?
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It is A)The smallest unit of Ne 

5 0
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