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lutik1710 [3]
3 years ago
5

The chemical standard for the quantity of a mole is based on which substance? a.hydrogen-1 b.helium-2 c.oxygen-16 d.carbon-12

Chemistry
1 answer:
jekas [21]3 years ago
5 0
D.carbon-12 is the answer.......
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HELPP! pls
pshichka [43]

Answer:

"2.48 mole" of H₂ are formed. A further explanation is provided below.

Explanation:

The given values are:

Mole of Al,

= 3.22 mole

Mole of HBr,

= 4.96 mole

Now,

(a)

The number of mole of H₂ are:

⇒  \frac{Mole \ of \ H_2}{3} =\frac{Mole \ of HBr}{6}

or,

⇒  Mole \ of \ H_2=\frac{1}{2}\times Mole \ of \ HBr

⇒                      =\frac{1}{2}\times 4.96

⇒                      =2.48 \ mole

(b)

The limiting reactant is:

= HBr

(c)

The excess reactant is:

= Al

6 0
2 years ago
Why is it expensive to bring electricity into urban areas?
amid [387]

Answer:

Power plants are not located in cities. Power has to travel a long distance over power lines to reach cities.

Explanation:

4 0
2 years ago
HELP WILL GIVE BRAINLIESTWhich of these elements would have the largest ionic radius?
iogann1982 [59]

Answer:

Bi3+ has 103

C4- has 170

Li+ 76

Na+102

Cl-185

5 0
3 years ago
A non-metallic atom(at.no. 9) forms a molecule of the same,containing a single covalent bond. give reason
bezimeni [28]
They are so may forms
4 0
3 years ago
Which of the following elements listed is the least metallic
Dominik [7]
Where's the list? It depends on which one it is. It could be Chlorine, silicon, or anything on the non metals side of the periodic table if you don't list it. 
5 0
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