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4 years ago

Which is a type of protein?

1 answer:

4 0

D. Enzyme

Because it contains amino acids which are the building blocks of proteins. Additionally the other answer choices are different macromolecules

You might be interested in

A chemist has 5.0x10^25 molecules of ammonia (NH3)

bogdanovich [222]

Answer:

3.78x10^23 moles and 17.04 grams

Explanation:

N/A

5 0

3 years ago

For the reaction CO2(g) + H2O(ℓ) + CaCl2(aq) ←→ CaCO3(s) + HCl(aq) K = 4.8 the concentrations of CO2, H2O, CaCl2 and HCl are 0.3

erica [24]

Answer:

3. The reaction will shift to the left.

Explanation:

Hello,

In this case, since we have a heterogeneous equilibrium, and the given equilibrium constant is given in terms of concentration, the law of mass action takes the following form:

$CO_2(g) + H_2O(l) + CaCl2(aq) \rightleftharpoons CaCO_3(s) + 2HCl(aq)$

$K=\frac{[HCl]^2}{[CaCl_2]}$

Clearly, just the hydrochloric acid and the calcium chloride participate in the equilibrium as they are the only aqueous species. Nonetheless, the given concentrations are not defining the equilibrium, therefore, one computes the reaction quotient in order to predict what would the system do to reach equilibrium as shown below.

$Q=\frac{[HCl]^2}{[CaCl_2]}=\frac{ 30.2^2 }{0.652 }=1398.8$

Thus, since Q>K, the reaction will shift leftwards, favoring the formation of reactants, therefore, answer is 3. The reaction will shift to the left.

Best regards.

5 0

4 years ago

What is the molarity of a solution when 2.75 g of NaCl is dissolved in 1100 mL of solution?

earnstyle [38]

Answer:

Explanation:

0.25 M

4 0

3 years ago

Be sure to answer all parts.

kondaur [170]

Answer:

154.44 Kg of H₂

Explanation:

We'll begin by converting 139 Kg of water to grams. This can be obtained as follow:

1 kg = 1000 g

Therefore,

139 kg = 139 kg × 1000 g / 1 Kg

139 Kg = 139000 g

Next, the balanced equation. This is illustrated below:

2H₂ + O₂ —> 2H₂O

Next, we shall determine the mass of H₂ that reacted and the mass of H₂O produced from the balanced equation. This can be obtained as follow:

Molar mass of H₂ = 2 × 1 = 2 g/mol

Mass of H₂ from the balanced equation = 2 × 2 = 4 g

Molar mass of H₂O = (2×1) + 16

= 2 + 16

= 18 g/mol

Mass of H₂O from the balanced equation = 2 × 18 = 36 g

SUMMARY

From the balanced equation above,

4 g of H₂ reacted to produce 36 g of H₂O.

Next, we shall determine the mass of H₂ needed to produce 139 kg (i.e 139000 g) of H₂O. This can be obtained as follow:

From the balanced equation above,

4 g of H₂ reacted to produce 36 g of H₂O.

Therefore Xg of H₂ will react to produce 139000 g of H₂O i.e

Xg of H₂ = (4 × 139000)/36

Xg of H₂ = 154444 g

Finally, we shall convert 154444 g to kg this can be obtained as follow:

1000 g = 1 Kg

Therefore,

154444 g = 154444 g × 1 Kg / 1000 g

154444 g = 154.44 Kg

Thus, 154.44 Kg of H₂ is needed to produce 139 Kg of water H₂O

6 0

3 years ago

What’s solubility need it for science

stiks02 [169]

Answer:

the ability of a compound to dissolve

Explanation:

salt dissolves in water so it would be soluble.

oil does not dissolve in water so it is not soluble

3 0

3 years ago