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Eddi Din [679]
2 years ago
14

OMG PLEASE HELP!! THIS IS IMPORTANT!!

Chemistry
2 answers:
sergey [27]2 years ago
6 0

Answer:

options D is correct

....hope it helps you

bogdanovich [222]2 years ago
5 0

Answer:

The cell membrane is protective layer surrounding a cell.

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How can we use the mole to convert between the mass and the volume of a substance?
aleksandr82 [10.1K]

Answer:

1mole= the ar/mr of substance and  1mole=24dm^3 of any gas at room temp

Explanation:

3 0
3 years ago
Consider the following intermediate chemical equations. When you form the final chemical equation, what should you do with CO? C
-Dominant- [34]

Answer:

Cancel out CO because it appears as a reactant in one intermediate reaction and a product in the other intermediate reaction.

Explanation:

The CO appears twice hence in he intermediate reaction it only forms path of the enabling reagents and it further reacts to form the final product. Accounting for the CO in the intermediate reaction that undergoes further reaction will impact on the stoichiometry of the reaction.

5 0
3 years ago
Which soil layer is the least similar to the underlying rock
aliina [53]
It would be the top soil. The most dissimilar layer is the uppermost layer.
8 0
3 years ago
Read 2 more answers
Calculate the standard cell potential at 25 ∘c for the reaction x(s)+2y+(aq)→x2+(aq)+2y(s) where δh∘ = -793 kj and δs∘ = -319 j/
QveST [7]
First we will calculate free energy change:
ΔG₀ = ΔH₀ - (T * ΔS₀)
        = - 793 kJ - (298 * - 0.319 kJ/K) = - 698 kJ
We know the relation between free energy change and cell potential is:
ΔG₀ = - n F E⁰ where
F = Faraday's constant = 96485 C/mol
n = 2 (given by equation that the electrons involved is 2)
ΔG₀ = - 2 x 96485 x E⁰
- 698 kJ = - 2 x 96485 x E⁰
E⁰ = (698 x 1000) / (2 x 96485) = 3.62 volts   
 
5 0
3 years ago
Which of this is not an effect of humans using a natural recourse?
katen-ka-za [31]

Answer:

it can allow more room for additional living things in the habitat

Explanation:

Use water for an example.

- Taking water can destroy a fish habitat.

- Using excess water can cause water to run out.

- Taking/using water leaves less amounts for others/organisms.

Taking water does not allow additional room for organisms in a habitat.

5 0
3 years ago
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