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Leno4ka [110]
4 years ago
6

50 POINTS I REEEEAAAALLLY NEED THIS ANSWERED

Chemistry
1 answer:
a_sh-v [17]4 years ago
8 0
The answer is N2. hope it helps
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Question 1 A student made measurements on some electrochemical cells and calculated three quantities: The standard reaction free
Zinaida [17]

Answer:

Explanation:

for spontaneous reaction,

ΔG is negative

K>1

E > 0

cell A:

ΔG and EO suggests that reaction is spontaneous. But K is less than 1.

Hence K is wrong

cell B:

ΔG and EO suggests that reaction is non spontaneous .But K is greater than 1.

Hence K is wrong

cell C:

E and K suggest than reaction is non spontaneous but ΔG suggest that reaction is spontaneous.

Hence ΔG is wrong

4 0
4 years ago
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Which of the following has the smallest radius Rb+, K, K+, or Rb+
Stells [14]
The trend of elemental radius increases from top to bottom and from right to left. This means Rb is greater than K. Incorporating the positive charges, K+ is smaller than K and Rb+ is smaller than Rb. Thus, the trend in increasing order is K+,K,Rb+,Rb. 
5 0
4 years ago
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Explain why elements and compounds are pure substances
Anna11 [10]
<span>N2 - Element; Pure substance O2 - Element; Pure substance N2O - Compound; Pure Substance Air - Homogeneous; Solution</span>
8 0
3 years ago
Read 2 more answers
NEED HELP
hjlf

Answer:

Explanation:

V1/T1 =V2/T2    at constnant pressure

5 0
4 years ago
As a reaction proceeds, the ratio between the rate of consumption of reactant and the rate of formation of product:
wariber [46]

Answer:

Depends on the reaction.

Explanation:

Hello,

In this case, the answer is depends on the reaction since the ratios between the rates of both consumption and formation depend upon the stoichiometric coefficients in the chemical reaction. For instance, for the reaction:

A -> 2B

The relationship is:

\frac{1}{-1}r_A =\frac{1}{2} r_B

Therefore, we can see that the rate of consumption of A half the rate of formation of B, but is we consider the following chemical reaction:

2A -> B

The relationship is:

\frac{1}{-2}r_A =\frac{1}{1} r_B

Therefore we can see that the rate of consumption of A doubles the rate of consumption of B.

Best regards.

3 0
3 years ago
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