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kolbaska11 [484]
3 years ago
7

_____ is required to start a chemical reaction.

Chemistry
1 answer:
adelina 88 [10]3 years ago
5 0
Activation energy is the minimum energy needed for a particular reaction to occur. 
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4 NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)
Mariulka [41]

Answer:

0.9 moles of water

Explanation:

Use mole ratios:

5 : 6

divide by 5 on both sides

1 : 1.2

multiply by 0.75 on both sides

0.75 : 0.9

So the result is 0.9 moles of water

(Please correct me if I'm wrong)

5 0
2 years ago
Which of the four containers represents a compound?
Arisa [49]
The answer is b)h2o is a compund
4 0
3 years ago
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Which of the following is the correct word equation for the reaction described below?
pshichka [43]
A) sulfuric acid + sodium hydroxide → sodium sulfate + water
4 0
3 years ago
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John and his wife are celebrating their first wedding anniversary. Their dinner consists of 55 grams of carbohydrates, 36 grams
nika2105 [10]

Answer: 733 kcal

Explanation:

According to a system used to calculate the available energy of foods, we have the following data:

  • protein has 4 kcal/g
  • carbohydrates has 4 kcal/g
  • fat has 9 kcal/g
  • alcohol has 7 kcal/g

So, we are told Jhon and his wife's dinner has:

  • 55 g of carbohydrates
  • 36 g of protein
  • 27 g of fat
  • 18 g of

Now we have to multiply these values by the kilocalories:

  • (55 g of carbohydrates)(4 kcal/g)=220 kcal  
  • (36 g of protein)(4 kcal/g)=144 kcal
  • (27 g of fat)(9 kcal/g)=243 kcal
  • (18 g of alcohol)(7 kcal/g)=126 kcal

Then we have to sum all, giving the following result:

<h2>733 kcal</h2>
4 0
3 years ago
9. Typically meringues have cream of tarter added to them. Why don't you think we don't have them in our recipe?
VLD [36.1K]
Some meringues are different and don't require the same ingredients just follow the recipe as said!!! Good luck
3 0
3 years ago
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