3 years ago

The rays of the sun strike the Earth less directly during winter in the Northern Hemisphere?

1 answer:

8 0

The sun's rays hit the Earth at a extreme angle, which causes the days to become shorter, so yes, the sun's rays do hit the Earth at a extreme angle.

You might be interested in

What is the molar mass of citric acid (C6H8O7) and baking soda (NaHCO3)?

Mama L [17]

Answer:

1. 192.0 g/mol.

2. 84.0 g/mol.

Explanation:

The molar mass is the mass of all the atoms in a molecule in grams per mole.

To calculate the molar mass of a molecule, we first obtain the atomic weights from the individual elements in a periodic table. We then count the number of atoms and multiply it by the individual atomic masses.

1. Molar mass of citric acid (C₆H₈O₇):

Molar mass of C₆H₈O₇ = 6(atomic mass of C) + 8(atomic mass of H) + 7(atomic mass of O) = 6(12.0 g/mol) + 8(1.0 g/mol) + 7(16.0 g/mol) = 192.0 g/mol.

2. Molar mass of baking soda (NaHCO₃):

Molar mass of NaHCO₃ = (atomic mass of Na) + (atomic mass of H) + (atomic mass of C) + 3(atomic mass of O) = (23.0 g/mol) + (1.0 g/mol) + (12.0 g/mol) + 3(16.0 g/mol) = 84.0 g/mol.

4 0

3 years ago

Quartz,SiO2,contains 46.7% silicon. What mass of silicon is present in 381 g of quartz?

swat32

Answer:

119 g.

Explanation:

4 0

3 years ago

Consider the reaction below.

snow_lady [41]

Answer:

NH3 and NH4+

Explanation:

NH4+ is the conjugate acid of the base NH3.

3 0

3 years ago

Please help. I’m stuck

barxatty [35]

A cartilage doesn’t produce blood cells

4 0

3 years ago

Oxygen is needed to produce energy in eukaryotic cells. Which organelle would you think needs oxygen the most

bezimeni [28]

Mitochondria need the most oxygen

5 0

3 years ago