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Anuta_ua [19.1K]
3 years ago
11

I. O2 is chemically bonded together.

Chemistry
2 answers:
oee [108]3 years ago
4 0

THE ANSWER IS B SORRY FOR THE CAPS(:

tia_tia [17]3 years ago
4 0

Answer is: B) O2 is a molecule.

Pure substance is made of only one type of atom (element) or only one type of molecule (compound).

For example, hydrogen peroxide (H₂O₂), sodium chloride (NaCl) are compounds, lithium (Li) is an element and oxygen (O₂) is a molecule.

Molecules can be homonuclear (molecule made of two atoms of the same element, in this example oxygen) and heteronuclear (molecule made of two different atoms, for example water).

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How many hydrogen atoms are present in .46 moles of NH3
mixas84 [53]

Answer:

2.78 x 10²³

Explanation:

1 mole contains 6.02 x 10²³ hydrogen atoms => 0.46 mole contains 0.46(6.02 x 10²³) hydrogen atoms or 2.78 x 10²³ atoms.

Caution => When to use H vs H₂ => This problem is specific for 'hydrogen atoms' but some may simply say hydrogen. In such cases use H₂ or 'molecular hydrogen' is the focus. it's a matter of semantics, H vs H₂.    

3 0
3 years ago
NH4NO3 (8) N20 (9) + H20 (1)
Ludmilka [50]

Answer:

NH4NO3 = 1

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Explanation:

3 0
3 years ago
How to find the charge of an element
katrin2010 [14]

Answer:

the atomic number is how you find the charge

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4 years ago
Why is a very small amount of cerium oxide nanoparticles need: A) the nanoparticles are elements
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Have a high suface area to volume ratio
7 0
3 years ago
if i initially have 4.0 L of a gas at a pressure of 1.1 atm, what will the volume be if i increase the pressure to 3.4 atm
Lelechka [254]

Answer:

<h3>The answer is 1.29 L</h3>

Explanation:

The new volume can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we are finding the new volume

V_2 =  \frac{P_1V_1}{P_2}  \\

From the question we have

V_2 =  \frac{4 \times 1.1}{3.4}  =  \frac{4.4}{3.4} \\   =1.294117647...

We have the final answer as

<h3>1.29 L</h3>

Hope this helps and

6 0
3 years ago
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