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3 years ago

Which of the following is not the name of an amino acid?

Chemistry

2 answers:

tangare [24]3 years ago

8 0

Answer:

C. Methane

(Photo for proof at the bottom.)

Explanation:

All amino acids contain an amino group, a carboxyl group, and an R group. An amino group consists of NH2. A carboxyl group consists of COOH. And an R group usually consists of a hydrogen or carbon atom bonded to the amino acid. Methane only consists of CH4, which clearly does not meet the criteria of an amino acid.

Here's a photo of Edge incase you're doubtful.

Please click the heart if this helped.

lapo4ka [179]3 years ago

5 0

Answer:

C. Methane

Explanation:

Hopefully this isnt too late!

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An elixir of ferrous sulfate contains 220 mg of ferrous sulfate in each 5 ml. if each milligram of ferrous sulfate contains the

natita [175]

To determine the mass of elemental iron in the elixir, we need to understand the given values given above. We are given the following:

Mass of ferrous sulfate = 220 mg
Volume of the elixir = 5 mL
Mass of elemental iron / mass of ferrous sulfate = 0.2 mg Fe / mg ferrous sulfate

Therefore, from the given values, we simply multiply the mass of the ferrous sulfate in the elixir and the equivalent mass of elemental iron per mass of ferrous sulfate. We do as follows:

Mass of Fe = 220 mg ferrous sulfate ( 0.2 mg Fe / mg ferrous sulfate )
Mass of Fe = 44 mg

7 0

4 years ago

Hydrogen is manufactured on an industrial scale by this sequence of reactions:

hichkok12 [17]

Answer:

$K=K_1*K_2\\\\K=\frac{[H_2]^3[CO_2][H_2]}{[CH_4][H_2O][H_2O]}$

Explanation:

Hello there!

In this case, for the given chemical reaction, it turns out firstly necessary to write the equilibrium expression for both reactions 1 and 2:

$K_1=\frac{[CO][H_2]^3}{[CH_4][H_2O]} \\\\K_2=\frac{[CO_2][H_2]}{[CO][H_2O]}$

Now, when we combine them to get the overall expression, we infer these two are multiplied to get:

$K=K_1*K_2\\\\K=\frac{[CO][H_2]^3}{[CH_4][H_2O]} *\frac{[CO_2][H_2]}{[CO][H_2O]}\\\\K=\frac{[H_2]^3[CO_2][H_2]}{[CH_4][H_2O][H_2O]}$

Regards!

6 0

3 years ago

Which of the following conditions must be met for a volume ratio to be created from a balanced chemical equation?

Gnesinka [82]

Answer: Option (b) is the correct answer.

Explanation:

According to ideal gas law, the product of pressure and volume is equal to the product of number of moles, gas constant and temperature.

Mathematically, PV = nRT

So, when there are two gases with equal number of moles behaving ideally then the ideal gas equation will be as follows.

$\frac{P_{1}V_{1}}{T_{1}}$ = $\frac{P_{2}V_{2}}{T_{2}}$

and $\frac{V_{1}}{V_{2}}$ = $\frac{P_{2}T_{1}}{P_{1}T_{2}}$

Hence, when temperature and pressure of both the gases will be constant then $\frac{V_{1}}{V_{2}}$ = 1.

Thus, we can conclude that constant temperature and pressure is the conditions that must be met for a volume ratio to be created from a balanced chemical equation.

4 0

3 years ago

Read 2 more answers

Which of the following is not part of Daltons atomic theory

Harman [31]

<span>Most of the atom's mass and all of its positive charge is contained in a small core called the nucleus.</span>

8 0

3 years ago

Find the mass in grams of 2.00x10^23 molecules of F2

earnstyle [38]

Hello!

To find the mass in grams of 2.00 * 10²³ molecules of F₂ you'll need to apply the Avogadro's number, which tells the number of molecules in a mol of a substance, and the Molar Mass, which tells the weight of a mole of a substance. These two quantities are used in the following conversion factor:

$2,00*10^{23} moleculesF_2* \frac{1 mol F_2}{6,02*10^{23} moleculesF_2 }* \frac{37,997 g F_2}{1 mol F_2} \\ \\ =12,51 g F_2$

So, the mass of 2.00 * 10²³ molecules of F₂ is 12,51 g

Have a nice day!

4 0

3 years ago