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4 years ago

12

Which of the following statements is true? Temperature is the same as heat. Heat can travel through a vacuum. Heat has shorter w

avelengths than visible light. All of the above.

2 answers:

pochemuha4 years ago

8 0

Answer:

All the above

Explanation:

Luda [366]4 years ago

5 0

All of the above because heat can get higher but so does the temperture and heat does travel throug a vacuum.

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If a candy bar contains 345 Calories, how many calories is this?

Arisa [49]

Answer: 345,000 calories

Explanation:

Calories in food such as candy bars refer to the amount of energy that the food has. Calories are also called Kilocalories because they are the equivalent of 1,000 calories.

If the candy bar contained 345 calories therefore, and 1 Calorie is 1,000 calories, the calories in the candy bar are:

= 345 * 1,000

= 345,000 calories

4 0

3 years ago

PLS I REALLY NEED HELP DUE FODAY

Gekata [30.6K]

<u>Answer:</u> The equilibrium constant for the reaction is 54.47

<u>Explanation:</u>

The equilibrium constant is defined as the ratio of the concentration of products to the concentration of reactants raised to the power of the stoichiometric coefficient of each. It is represented by the term $K_{eq}$

The given chemical equation follows:

$H_2+I_2\rightleftharpoons 2HI$

The expression for equilibrium constant will be:

$K_{eq}=\frac{[HI]^2}{[H_2][I_2]}$

We are given:

$[HI]_{eq}=1.3544\times 10^{-2}M$

$[H_2]_{eq}=4.5647\times 10^{-3}M$

$[I_2]_{eq}=7.378\times 10^{-4}M$

Putting values in above expression, we get:

$K_{eq}=\frac{(1.3544\times 10^{-2})^2}{(4.5647\times 10^{-3})(7.378\times 10^{-4})}\\\\K_{eq}=54.47$

Hence, the equilibrium constant for the reaction is 54.47

3 0

3 years ago

A mixture initially contains A, B, and C in the following concentrations: [A] = 0.350 M , [B] = 0.900 M , and [C] = 0.350 M . Th

grigory [225]

Answer:

Kc = 1.23456790123

Explanation:

Kc = [C} / ([A} * [B]^2)

5 0

4 years ago

What ion do most basic compounds contain?<br> A. H2O<br> B. H2O-<br> C. OH-<br> D. H-

mel-nik [20]

C is the correct answer I think

4 0

3 years ago

How many grams of oxygen can react with 6 grams of hydrogen gas

Lena [83]

Answer:

The answer is 8 grams of Oxygen

Explanation:

This is because Oxygen atomic mass is 16 and hydrogen mass is 2.

16/2=8

7 0

3 years ago