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3 years ago

Which of the following best describes the amount of natural resources found here in the United States?

Chemistry

1 answer:

blsea [12.9K]3 years ago

4 0

Its A Natural resources are found in abundance in the US.

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How many millimeters are equivalent to 8 meters?

Fiesta28 [93]

D is the correct answer

3 0

3 years ago

Read 2 more answers

Percent Composition and Determining Empirical And Molecular Formulas

raketka [301]

Answer:

% comp. H = 2.8%, % comp. Cl = 97.2%

Explanation:

HCl mass = mass of H + mass of Cl

HCL mass = 1.00794 + 35.453 = 36.46094

% comp. of H = 1.007694 / 36.46094 x 100 = around 2.8% (2.76376308455)

% comp. of Cl = 35.453 / 36.46094 x 100 = around 97.2% (97.2355622208)

3 0

2 years ago

All atoms of the same element contain the same number of protons. the atom that has 9 protons can be represented by the symbol?

padilas [110]

It can be represented by atom -9

It would be Fluorine in real..

5 0

3 years ago

If 49.0 g of O2 is mixed with 49.0 g of H2 and the mixture is ignited, what is the maximum mass of water that may be produced?

Katarina [22]

Answer:

$55.2gH_2O$

Explanation:

Hello!

In this case, since the reaction between hydrogen and oxygen to produce water is:

$2H_2+O_2\rightarrow 2H_2O$

When equal masses of each reactant go in contact to carry out the reaction, we can identify the maximum mass of yielded water as the fewest mass yielded by each reactant, just as shown below:

$m_{water}^{by\ H_2}=49.0gH_2*\frac{1molH_2}{2.02gH_2}*\frac{2molH_2O}{2molH_2}*\frac{18.02gH_2O}{1molH_2O} =170gH_2O\\\\m_{water}^{by\ O_2}=49.0gO_2*\frac{1molO_2}{32.0gO_2}*\frac{2molH_2O}{1molO_2}*\frac{18.02gH_2O}{1molH_2O} =55.2gH_2O$

Thus, since hydrogen yields more water than real, we limit the maximum mass of water to those 55.2 g yielded by oxygen as hydrogen would be in excess.

Best regards!

4 0

3 years ago

Find the sum of - 1 /5 and reciprocal of 6 /11

Bess [88]

Answer:

Solution,

Reciprocal of 6/11=11/6

Now,

-1/5+11/6

=-1*6+11*5/30

=-6+55/30

=49/30

Hope it helps

Good luck on your assignment

7 0

3 years ago