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nalin [4]
3 years ago
14

What are the coefficients when the following equation is correctly balanced? _____ Al + _____O2 ---> _____Al2O3

Chemistry
1 answer:
lesya692 [45]3 years ago
7 0
1 second let me write down this and I will answer
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Convert 1.25 kg into grams
umka2103 [35]
<h2>1 kilogram = 1,000 grams</h2><h2></h2>

Since we are going from a larger unit to a smaller unit, we multiply.

So we multiply 1.25 by the conversion factor, which is 1,000.

This gives us 1,250 grams

7 0
3 years ago
Please answer these 2 questions
My name is Ann [436]

Answer:

Question 8, I think is C describe CR. Question 7 is Chemical reactions produce new substances

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4 0
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Can Individual atoms be moved and rearranged ?
andriy [413]

Answer:

Yes

Explanation:

Scientists using the latest microscopic technology have found they can move individual atoms around a surface at will, a breakthrough that could have profound implications in the ultra-small world of electronics and even in industry

6 0
3 years ago
Answer the following question for this equation: 2H2 + O2 → 2H2O
kondaur [170]

Answer:

B. 1:2

Explanation:

Molar ratio depicts the relationship between the number of moles of two substances. The chemical equation in this question is as follows:

2H2 + O2 → 2H2O

This question is asking to identify the molar ratio of O2 to H2O in the equation. Since 1 mole of oxygen gas (O2) produces 2 moles of water (H2O). Hence, the O2 to H2O molar ratio is 1:2.

6 0
3 years ago
A diffusion coefficient KG was determined for the diffusion of a gas A through a stagnant film B [KG = 0.88 mol//h-ft2-atm].
Angelina_Jolie [31]

Explanation:

Transfer of mass A into stagnant film B depends on the availability of driving force.

Whereas driving force is the pressure difference at the surface of A and the bulk.

As,       N_{A} \propto (P_{A1} - P_{A2})

           N_{A} = K_{G} \times (P_{A1} - P_{A2})

Therefore, putting the given values into the above formula as follows.

         N_{A} = K_{G} \times (P_{A1} - P_{A2})

                     = 0.88 \times (0.2 atm - 0.05 atm)

                     = 0.132 mol/h.ft^{2}

Thus, we can conclude that the flux of A from a surface into a mixture of A and B is 0.132 mol/h.ft^{2}

4 0
4 years ago
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