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alexira [117]
3 years ago
5

Which planet listed below will take the longest amount of time to orbit the sun?

Chemistry
1 answer:
Tema [17]3 years ago
5 0

Answer:

Neptune takes the longest to orbit the sun because of it's distance away from the Sun.

Explanation:

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1.5 moles are present in 60.0 grams of calcium.
Andrew [12]

Answer:

True.

Explanation:

To know which option is correct, let us calculate the number of mole present in 60g of calcium. This is illustrated below:

Mass of Ca = 60g

Molar Mass of Ca = 40g/mol

Number of mole Ca =....?

Number of mole = Mass/Molar Mass

Number of mole of Ca = 60/40

Number of mole Ca = 1.5 moles.

From the calculations made above, we can see that 1.5 moles are present in 60.0 grams of calcium

3 0
3 years ago
How do large storms and strong currents affect the coasts?
Nezavi [6.7K]
Its B i believe, Storms and currents can bring in sediments from other places
3 0
3 years ago
Read 2 more answers
Which one of the following is the correct relation?
Ann [662]

Answer:

v2 = u2 + 2as

it is the correct answer

8 0
3 years ago
Read 2 more answers
Select the correct answer
amm1812

Answer:

  C  The experiment shows that the red substance experienced a chemical change.

Explanation:

Apparently, adding heat caused the red substance to decompose into a gas and a metallic liquid. If it were simply a phase change, the original red substance could be expected to return when the temperature cooled. Because the substance apparently decomposed, it is clearly not an element. At no point in the experiment is there any evidence of a plasma being formed.

The observed decomposition is a chemical change.

8 0
3 years ago
A sample of gaseous methyl ether has a mass of 8.12g and occupies a volume of 3.96L at STP. What is the molecular weight of meth
Naya [18.7K]
Molar volume is when 1 mol of any gas occupies 22.4 L at STP.
Methyl ether has a mass of 8.12 g,
Volume occupied - 3.96 L
If 22.4 L occupied by 1 mol of gas
Then 3.96 L occupied by 1/22.4 x 3.96 = 0.176 mol of gas
The mass of 0.176 mol = 8.12 g
Molar mass is mass of 1 mol
Therefore mass of 1 mol = 8.12/0.176 = 46.1
Molecular weight is 46.1 g/mol
5 0
3 years ago
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