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mariarad [96]
3 years ago
9

Omg, I need help ASAP. Btw this is science.

Chemistry
1 answer:
nikdorinn [45]3 years ago
4 0

Answer: B. Asexual Reproduction

Explanation:

Vascular is typically only spores, sexual reproduction does not seem to fit this, and fertilization could be a key but most likely not. I am sorry if this is wrong.

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In using the reaction quotient Q to analyze reaction progress, for the condition where Q<
Norma-Jean [14]

Answer:

The correct answer is reaction will achieve equilibrium by forming more products and will move in left to right direction.

Explanation:

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as K_{eq}

K is the constant of a certain reaction when it is in equilibrium, while Q is the quotient of activities of products and reactants at any stage other than equilibrium of a reaction.

  • If Q > K_{eq}  , then the equilibrium will shift in left direction or in backward direction.the reaction will move back to the formation of reactants from the product
  • If Q < K_{eq}  , then the equilibrium will shift in right direction or in forward direction.The reaction will form more products
7 0
4 years ago
A student dissolves of 15 g aniline in of a solvent with a density of . The student notices that the volume of the solvent does
VikaD [51]

The given question is incomplete. The complete question is ;

A student dissolves of 15 g aniline in 200 ml of a solvent with a density of 1.05 g/ml. The student notices that the volume of the solvent does not change when the aniline dissolves in it. Calculate the molarity and molality of the student's solution. Be sure each of your answer entries has the correct number of significant digits.

Answer: The molarity is 0.81 M and molality is 0.82 m

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

where,

n= moles of solute  

V_s = volume of solution in ml = 200 ml

{\text {moles of solute}=\frac{\text {given mass}}{\text {molar mass}}=\frac{15g}{93g/mol}=0.16mol

Now put all the given values in the formula of molarity, we get

Molarity=\frac{0.16\times 1000}{200}=0.81M

Thus molarity is 0.81 M

Molality of a solution is defined as the number of moles of solute dissolved per kg of the solvent.

Molarity=\frac{n\times 1000}{W_s}

where,

n = moles of solute

W_s = weight of solvent in g

{\text {moles of solute}=\frac{\text {given mass}}{\text {molar mass}}=\frac{15g}{93g/mol}=0.16mol

Mass of solution = Density\times Volume=1.05g/ml\times 200ml=210g

mass of solvent = mass of solution - mass of solute = (210 - 15) g = 195 g

Now put all the given values in the formula of molality, we get

Molality=\frac{0.16\times 1000}{195g}=0.82mole/kg

Therefore, the molality of solution is 0.82m

3 0
3 years ago
The volume of a gas is 18.6 L at 0.10 atm and 273 K. Calculate the pressure in
creativ13 [48]

Answer:

1.86 atm

Explanation:

The following data were obtained from the question:

Initial volume (V₁) = 18.6 L

Initial pressure (P₁) = 0.10 atm

Final volume (V₂) = 1000 mL

Final pressure (P₂) =?

NOTE: The temperature is constant.

Next, we shall convert 1000 mL to L.

1000 mL = 1 L

Finally, we shall determine the final pressure of the gas as follow:

Initial volume (V₁) = 18.6 L

Initial pressure (P₁) = 0.10 atm

Final volume (V₂) = 1 L

Final pressure (P₂) =?

P₁V₁ = P₂V₂

18.6 × 0.10 = P₂ × 1

1.86 = P₂

P₂ = 1.86 atm

Thus, the final pressure of the gas is 1.86 atm

6 0
3 years ago
Please help noowwwww... if you don’t know please don’t answer
pshichka [43]

Answer:

i honetly dont thing anyone knows that so look it up

Explanation:

7 0
3 years ago
3. Which of the following could be characterized as macronutrients in food?
Neporo4naja [7]

Answer:

All of these are micronutrients.

8 0
3 years ago
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