Answer:
Explanation:
The volume of the Sun is so huge that it could hold over 1 million Earths. The Sun is a typical star, and is also the star that is nearest to the Earth. It is composed of a mixture of 73% hydrogen, 25% helium, and 2% other elements by weight.
Answer:
2.7g/cm³
Explanation:
Given parameters:
Dimension of the aluminum = 10.5cm x 10.5cm x 0.1cm
Mass of the aluminum = 29.8g
Unknown:
Density = ?
Solution:
Density of a substance is its mass per unit volume;
Mathematically;
Density =
Volume of the aluminum = 10.5cm x 10.5cm x 0.1cm = 11.025cm³
So, insert the parameters and solve;
Density = = 2.7g/cm³
Answer:
<h3>The answer is 2.0 kg/m³</h3>
Explanation:
The density of a substance can be found by using the formula
From the question
mass = 180 kg
volume = 90 m³
The density is
We have the final answer as
<h3>2.0 kg/m³</h3>
Hope this helps you
<u>Answer:</u> 0.5 moles of are produced in the reaction
<u>Explanation:</u>
The number of moles is defined as the ratio of the mass of a substance to its molar mass.
The equation used is:
......(1)
Given mass of = 113.6 g
Molar mass of = 79.5 g/mol
Plugging values in equation 1:
For the given chemical reaction:
By the stoichiometry of the reaction:
If 3 moles of produces 1 mole of
So, 1.43 moles of will produce = of
Hence, 0.5 moles of are produced in the reaction