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OLga [1]
3 years ago
10

Please help me with this

Chemistry
1 answer:
Harrizon [31]3 years ago
3 0
I and Ca is the answer
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In the reaction :N2 + 3H2----2NH3 how many grams of H2 are needed to produce 1 mole on ammonia
svetlana [45]
Start with moles of ammonia you want to produce, then convert to how many moles of H2 you need to get one mole of ammonia, then convert that to grams :)

3 0
3 years ago
Predict what will be observed in each experiment below. experimentpredicted observation (choose one) A student sees tiny bubbles
Andrew [12]

Answer:

The bubbles will grow, and more may appear.

Explanation:

The bubble seen in a carbonated soft drink are bubbles of CO2. These bubbles appear because the gas is dissolved under pressure in carbonated drinks.

If i squeeze the bottle, i am applying more pressure to the bottle hence more bubbles will appear in the bottle under this increased pressure.

Hence, if the student squeezes the bottle, the bubbles will grow, and more may appear.

5 0
3 years ago
The force generated by charged objects is called:
Helga [31]

Answer:

coulomb force/ electrostatic force

Explanation:

attraction or repulsion of particles

3 0
3 years ago
Read 2 more answers
1.26 * 10^4 + 2.50 * 10^4 in sceintific notation
eduard
Hello! I can help you with this. First, convert them into it’s written out standard form. 10^4 is 10,000. 10,00 * 1.26 is 12,600. 10,000 * 2.5 is 25,000. 12,600 + 25,000 = 37,600 or 3.76 * 10^4 in scientific notation. The answer in scientific notation is 3.76 * 10^4.
8 0
3 years ago
how much energy is required to heat an iron nail with a mass of 25.5 grams from 65° until it becomes red hot at 720 degrees Cels
Kay [80]
2273.6 Joules that’s your answer
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3 years ago
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