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3 years ago

!PLEASE HELP! !URGENT! 25 POINTS

Chemistry

2 answers:

Varvara68 [4.7K]3 years ago

5 0

B! because the hydrogen causes some nuclear reactions.

Eva8 [605]3 years ago

4 0

Answer:

Explanation:

It would be b because of the bang that happened

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Which element on the periodic table is found in liver and is needed to prevent anaemia

blondinia [14]

Anemia is essentially an iron deficiency so the element found in the liver preventing it would be Fe (iron).

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3 years ago

Într-un amestec de „x” molecule de hidroxid de amoniu NH4OH și 7 molecule de apă se găsesc 39 atomi de hidrogen. Valoarea lui „x

Oliga [24]

Answer:

\large \boxed{5}

Explanation:

Molecules of NH₄OH do not exist.

If they did, however, here is how you might answer.

Total H atoms = 39 H

-7H₂O = 14

H atoms available = 25 H

Each "molecule" of NH₄OH contains five H atoms.

$\text{No. of Molecules} = \text{25 H} \times \dfrac{\text{1 molecule}}{\text{5 H}} = \textbf{5 molecules}\\\\\text{ The value of x is $\large \boxed{\mathbf{5}}$}$

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3 years ago

How many atoms are in 3.23 grams of copper

Nata [24]

the answer is 6.022×1023 atoms

5 0

2 years ago

5. The element copper has naturally occurring isotopes with mass numbers of 63

natali 33 [55]

Answer:

63.616

Explanation:

DATA

1. first atomic mass;m1=63

second atomic mass;m2=65
first percentage;p1= 69.2%
second percentage me;p2=30.8%
average mass;avg= ?

SOLUTION

avg= (m1)(p1) + (m2)(p2)

100

avg= (63)(69.2) + (65)(30.8)

100

avg= 4359.6 + 2002

100

avg= 6361.6

100

avg= 63.616

4 0

3 years ago

Read 2 more answers

Describe a method of Municipal treatment of water with neat diagram?

stich3 [128]

Water treatment process

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2 years ago