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bazaltina [42]
2 years ago
7

Space shuttle engines combine liquid hydrogen and liquid oxygen to produce an explosive reaction which releases great amounts of

energy. A positive feature of this reaction is that no pollutants are produced, as they are in hydrocarbon combustions. The only product is water.
What is the chemical equation?
Chemistry
1 answer:
Anastasy [175]2 years ago
6 0
H2 + O -> H2O

I'm pretty sure that's the answer, just tell me if I'm wrong.
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How many atoms make up the products in this equation? NaCl + AgNO3 --> NaNO3 + AgCl
maxonik [38]

Answer:

14

Explanation:

if there is no number behind the element, it counts as one, but if there is, you do 1 times x(whatever the exponent is) and thats how many that one element counts for with atoms. then you just add them all up

8 0
2 years ago
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A rock that weighs 12.2 g is added to a graduated cylinder with 30.0 mL of water in it. The meniscus rises to 54.4 mL. What is t
GuDViN [60]

Answer:

              0.50 g/mL

Explanation:

Formula of Density,

                          D = mass / volume

Mass = 12.2 g

Volume = 54.4 mL - 30.0 mL = 24.4 mL

Putting values,

                          D = 12.2 g / 24.4 mL

                          D = 0.50 g/mL

4 0
2 years ago
which element is the most electronegative out of the following K Mn Br WILL MARK BRAINLIEST!
SashulF [63]
The correct answer is:  [C]:  "Br"  {"bromine"} .
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8 0
3 years ago
A certain chemical reaction releases 36.2 kJ/g of heat for each gram of reactant consumed. How can you calculate what mass of re
Lilit [14]

Answer:

0.038 g of reactant

Explanation:

Data given:

Heat release for each gram of reactant consumption = 36.2 kJ/g

mass of reactant that release 1360 J of heat = ?

Solution:

As  36.2 kJ of heat release per gram of reactant consumption so first we will convert KJ to J

As we know

1 KJ = 1000 J

So

36.2 kJ = 36.2 x 1000 = 36200 J

So it means that in chemical reaction 36200 J of heat release for each gram of reactant consumed so how much mass of reactant will be consumed if 1360 J heat will release

Apply unity formula

                 36200 J of heat release ≅ 1 gram of reactant

                 1360 J of heat release ≅ X gram of reactant

Do cross multiplication

              X gram of reactant = 1 g x 1360 J / 36200 J

              X gram of reactant = 0.038 g

So 0.038 g of reactant will produce 1360 J of heat.

5 0
3 years ago
Hellllllllllppppppppppppppp!
Art [367]
Please list your question in the comments.
3 0
3 years ago
Read 2 more answers
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