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Mandarinka [93]
3 years ago
11

Test Yourself

Chemistry
1 answer:
Alenkasestr [34]3 years ago
6 0

Answer:

billion is larger \ part if billion

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In the reaction
Sedbober [7]

Answer:

rate = [NO]²[O2]

Explanation:

The rate law for the reaction:

2 NO(g) + O2(g) → 2 NO2(g)

Is expressed in terms of reactants as follows:

rate = [NO]ⁿ[O2]ˣ

<em>Where n and x are the coefficients of the rate law.</em>

<em />

If [NO] is doubled, the rate increased 4 times. That is only possible if:

rate = [NO]²[O2]ˣ

Now, as [NO] is doubled and increased the rate 4 times, and [NO] + [O2] when doubled increased the rate 8 times, doubled [O2] implies increased the rate 2 times. That is only possible is:

<h3>rate = [NO]²[O2]</h3>
7 0
3 years ago
CaCo3+2HCL Cacl2+h2o+co2
Rasek [7]

Answer:

Here

Explanation:

This is an acid-base reaction (neutralization): CaCO3 is a base, HCl is an acid.

6 0
3 years ago
Do all isotopes decay over time ?
ser-zykov [4K]
Certain naturally occurring radioactive isotopes are unstable: Their nucleus breaks apart, undergoing nuclear decay. ... All elements with 84 or more protons are unstable; they eventually undergo decay. Other isotopes with fewer protons in their nucleus are also radioactive.
4 0
3 years ago
Read 2 more answers
Give the formula for the alkene containing 15 carbons.
STALIN [3.7K]
C15H32

should b the answer
7 0
4 years ago
Nitrobenzene contains 5 hydrogen atoms 6 carbon atoms 2 oxygen atoms and 1 nitrogen atom. what is the chemical formula for nitro
tamaranim1 [39]
To develop the chemical formula of a substance or compound in this regard, one only needs to write the chemical symbol for each of the element present and write as subscript to each symbol the number of atoms of that element. For nitrobenzene, as described above, the chemical formula should be,
                      C₆H₅O₂N
3 0
3 years ago
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