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4 years ago

Why do we see different phases of the lunar cycle?

Chemistry

1 answer:

umka21 [38]4 years ago

8 0

Answer:

During the lunar month, the Moon goes through all its phases. Just like the Earth, half of the Moon is lit by the Sun while the other half is in darkness. The phases we see result from the angle the Moon makes with the Sun as viewed from Earth.

Explanation:

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Where would we find yellow bone marrow?

Doss [256]

Answer:

Yellow bone marrow can be found in the long bones of the human body one such bone being the femur the yellow bone marrow contains certain stem cells which produce cartilage, fat and bone.

Explanation:

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3 years ago

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Setler79 [48]

Answer:

1 true

Explanation:

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3 years ago

Which of the following describes a solution of 1 gram of salt dissolved in 500 mL of water?

Law Incorporation [45]

Answer:

Explanation

Salt water is a solution where the salt completely dissolves therefore is is homogeneous. Solvent is the liquid (water) that dissolves the solute (salt).

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3 years ago

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Suppose a vodka martini contains 30% alcohol with the remaining portion of the drink composed of water. what is the solute in th

viktelen [127]

Solute - substance that dissolves.
alcohol - solute
water - solvent

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4 years ago

How many protons and neutrons are in 119_Sn? O a. 50 n and 119 p O b. 50 p and 169 1 O c. 50 p and 69 O d. 50 n and 169 p O e. N

Anastaziya [24]

<u>Answer:</u> The given isotope of tin has 50 protons and 69 neutrons.

<u>Explanation:</u>

Atomic number is defined as the number of protons or number of electrons that are present in neutral atom. It is represented as Z.

Atomic number = Number of protons = Number of electrons

Mass number is defined as the sum of number of protons and number of neutrons. It is represented as A.

Mass number = Number of protons + Number of neutrons

We are given:

An isotope having representation $_{50}^{119}\textrm{Sn}$

Mass number of Sn = 19

Atomic number = 50

Number of neutrons = Mass number - Atomic number = 119 - 50 = 69

Hence, the given isotope of tin has 50 protons and 69 neutrons.

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3 years ago