3 years ago

What is the mass of water that results from combining 2.0 g of hydrogen with 16.0 g of oxygen?

1 answer:

8 0

The formula for water is H2O so there would have to be two Hyrdogens and one oxygen. Therefore it would be 4g of Hydrogen and 16g of Oxygen leaving you with 20g.
The answer is D.

Hope this helps :) ~

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A newspaper story describing the local celebration of Mole Day on October 23 (selected for Avogadro's number, 6.02 X 10^ 23 ) at

stepladder [879]

Answer:

The answer is "670.176 km".

Explanation:

Volume of the occupies of one M & M= 0.5 \ cm^3\\\\

M&M 1 mole $= 6.02 \times 10^{23}\\\\$

Calculating volume of M& M mole $= 0.5 \ cm^3 \times 6.02 \times 10^{23}=3.01 \times 10^{23}\ cm^3\\\\$

Calculating the cube mole $L^3= 3.01 \times 10^{23}\ cm^3\\\\$

$L=6.70176 \times 10^{7}\ cm\\\\$

$=6.70176 \times 10^{7}\ cm \times \frac{1\ m}{100\ cm}\\\\=670176\ m\\\\=670.176 \ km$

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3 years ago

How many atoms of Oxygen (O) are there in the products of the following equation:

xenn [34]

Answer:

You see, 2 atoms of O in the CO₂ and 2 O in the 2 moles of H₂O

Explanation:

CH₄ + 2O₂ → CO₂ + 2H₂O

8 0

3 years ago

what noble gas has the same electron configuration as each of the ions in the following compounds? a. Cesium sulfide b. strontiu

saveliy_v [14]

Answer:

A. Cesium sulfide

Explanation:

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7 0

3 years ago

A compound is 79.94g carbon, 26.82g hydrogen, and 93.24g nitrogen. What is the empirical formula?

Pani-rosa [81]

Answer:

i dont know

Explanation:

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5 0

3 years ago

Is 2OH−+Ca2+−>2Ca(OH)2 balanced

wariber [46]

Answer:

No.

Explanation:

No. There is 1 atom of Ca on the left and 2 Ca's on the right and 2 OH's on the left and 4 on the right.

The balanced equation is:

4OH- + 2Ca2+ ----> 2Ca(OH)2.

3 0

3 years ago

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