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Artist 52 [7]
3 years ago
12

Aluminum reacts with copper 2 chloride to make aluminum chloride and copper. Right the balanced equation

Chemistry
1 answer:
Ivan3 years ago
3 0

Answer:

2Al  + 3CuCl2 ---> 2AlCl3 + 3Cu

Explanation:

2Al  + 3CuCl2 ---> 2AlCl3 + 3Cu

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The half life of radon-222 is 3.8 days. How Much of a 100g sample is left after 15.2 days
professor190 [17]

Answer:  

6.2 g  

Explanation:  

In a first-order decay, the formula for the amount remaining after <em>n</em> half-lives is  

N = \frac{N_{0}}{2^{n}}  

where  

<em>N</em>₀ and <em>N</em> are the initial and final amounts of the substance  

1. Calculate the <em>number of half-lives</em>.  

If t_{\frac{1}{2}} = \text{3.8 da}  

n = \frac{t}{t_{\frac{1}{2}}} = \frac{\text{15.2 da}}{\text{3.8 da}}= \text{4.0}

2. Calculate the <em>final mass</em> of the substance.  

\text{N} = \frac{\text{100 g}}{2^{4.0}} = \frac{\text{100 g}}{16} = \text{6.2 g}

4 0
3 years ago
PLEASE HELP<br> Which is a true of a molecule?<br> Quesion 3 <br> PLEASE HELP
insens350 [35]
The last one. A bond of two or more of the same element.
5 0
2 years ago
What is the percent change when an iodine atom (I) becomes an ion (I-)?
VashaNatasha [74]
What do you mean by this question?
4 0
3 years ago
Which compounds have the empirical formula CH2O?
lara [203]

Answer:

The answer to your question is all the formulas in bold has the same empirical formula

Explanation:

Data

Empirical formula     CH₂O

Process

To solve this problem factor the subscripts of each formula and compare the result with the empirical formula given.

a) C₂H₄O₂      factor 2          2(CH₂O)

b) C₃H₆O₃      factor 3          3(CH₂O)

c) CH₂O₂        this formula can not be simplified

d) C₅H₁₀O₅      factor 5         5(CH₂O)

e) C₆H₁₂O₆      factor 6         6(CH₂O)

8 0
3 years ago
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What would be the volume of 0.500 mole of an<br> ideal gas at STP
Katena32 [7]
I think v=11.21 right?
8 0
3 years ago
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