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alekssr [168]
3 years ago
9

Explain the action of steam on a metal​

Chemistry
1 answer:
Kipish [7]3 years ago
6 0

Answer:

Metals which react with steam form the solid metal oxide and hydrogen gas. In general, the more reactive the metal, the more rapid the reaction. ... Its surface forms a protective layer of aluminium oxide that keeps water away from the metal below.Aug 23, 2020

Explanation:

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The rate for a reaction between reactants l, m, and n is proportional to the cube of [l] and the square of [m]. what is the rate
postnew [5]
Answer
rate =k[l]^3[m]^2
4 0
3 years ago
A car travels 66 kilometers in 3 hours. what is its speed
Ne4ueva [31]

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22 kph

Explanation:

You simply divide the distance and the time. 66/3 = 22.

8 0
3 years ago
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Write in exponential form: 34⋅34⋅34⋅34⋅34⋅34⋅34⋅34.
kvv77 [185]

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34^8

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7 0
3 years ago
Need help on this question asap pleasee
algol [13]

Answer:

9.0 moles of CaO

Explanation:

We have the reaction equation as follows;

Fe2O3 + Ca3(PO4)2 -------> 2FePO4 + 3CaO

Now we know from the equation that;

1 mole of iron III oxide yields 3 moles of CaO

Therefore;

3 moles of iron III oxide yields 3 * 3/1

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6 0
2 years ago
Hydrogen 3 has a half life of 12.32 years a sample of h-3 weighing 3.02 grams is left for 15.0 years what will the final weight
yawa3891 [41]

Answer:

The final mass of sample is 1.3 g.

Explanation:

Given data:

Half life of H-3 = 12.32 years

Amount left for 15.0 years = 3.02 g

Final amount = ?

Solution:

First all we will calculate the decay constant.

t₁/₂ = ln² /k

t₁/₂ =12.32 years

12.32 y =  ln² /k

k = ln²/12.32 y

k = 0.05626 y⁻¹

Now we will find the original amount:

ln (A°/A) = Kt

ln (3.02 g/ A) = 0.05626 y⁻¹ × 15.0 y

ln (3.02 g/ A) = 0.8439

3.02 g/ A = e⁰°⁸⁴³⁹

3.02 g/ A = 2.33

A = 3.02 g/ 2.33

A = 1.3 g

The final mass of sample is 1.3 g.

8 0
3 years ago
Read 2 more answers
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