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slamgirl [31]
3 years ago
9

19. Tryptophan is an essential _____ that can be found in the genetic code of humans.

Chemistry
1 answer:
Ivan3 years ago
3 0
The answer is B tryptophan is a amino acid
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Based on Charles's law, which of the following statements is true for an ideal gas at a constant pressure and mole amount?
grandymaker [24]

Answer:

Volume is directly proportional to absolute temperature.

Explanation:

5 0
3 years ago
Susana heats up a sample of red crystals. While the sample is being heated, a gas is released and a blue powder is left after th
frutty [35]

Answer: Compound

Explanation:

Element is a pure substance which is composed of atoms of similar elements.It can not be decomposed into simpler constituents using chemical reactions.Example: Copper Cu

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example: water H_2O

2H_2O\rightarrow 2H_2+O_2

Thus as it give that  the red sample on being heated, a gas is released and a blue powder is left after the heating. Thus the given sample is a compound.

5 0
3 years ago
Read 2 more answers
What might happen if we heat the sphere
Reptile [31]
WE GONNA DIE RUNNNNNNNN
7 0
3 years ago
What is the empirical formula for a compound which contains 67.1 zinc and the rest is oxygen
wolverine [178]

Answer:

The empirical formula is ZnO2

Explanation:

What is the empirical formula for a compound which contains 67.1% zinc and the rest is oxygen?

Step 1: Data given

Suppose the compound has a mass of 100.0 grams

A compound contains:

67.1 % Zinc  = 67.1 grams

100 - 67.1 = 32.9 % oxygen  = 32.9 grams

Molar mass of Zinc = 65.38 g/mol

Molar mass of O = 16 g/mol

Step 2: Calculate moles of Zinc

Suppose the compound is 100 grams

Moles Zn = 67. 10 grams / 65.38 g/mol

Moles Zn = 1.026 moles

Step 3: Calculate moles of O

Moles O = 32.90 grams / 16.00 g/mol

Moles O = 2.056 moles

Step 4: Calculate mol ratio

We divide by the smallest amount of moles

Zn: 1.026/1.026 = 1

O: 2.056/1.026 = 2

The empirical formula is ZnO2

To control this we can calculate the % Zinc for 1 mol

65.38 / (65.38+2*16) = 0.67.1 = 67.2 %

7 0
3 years ago
Where is a divergent boundary most likely to be found?
nexus9112 [7]

Answer:

a

Explanation

Bc I took the test, good luck with that guys

7 0
2 years ago
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