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3 years ago

Question 10 of 25

Chemistry

2 answers:

disa [49]3 years ago

7 0

Answer:

d) 0

Explanation:

a p e x :)

Over [174]3 years ago

5 0

Answer: 0

Explanation: A P E X

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Complete the decay equation for N-16: <br><br>16 7 N--> __+__

DanielleElmas [232]

The decay of the isotope N-16 occurs according to the reaction equation; 16/7 N -----> γ + 16/7 N.

<h3>What is a radioactive decay?</h3>

The term radioactive decay has to do with the spontaneous disintegration of an unstable nucleus to yield radiation.

The decay of the N-16 nucleus releases gamma rays which a radioactive radiation according to the equation; 16/7 N -----> γ + 16/7 N.

Learn more about radioactive decay:brainly.com/question/1770619

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5 0

2 years ago

A chemist wants to extract copper metal from copper chloride solution. The chemist places 1.50 grams of aluminum foil in a solut

Llana [10]

Less than 6.0 grams of copper is formed, and some aluminum is left in the reaction mixture

<h3>Stoichiometric calculations</h3>

From the equation of the reaction:

3CuCl2 + 2Al → 2AlCl3 + 3Cu

Mole ratio of CuCl2 and Al = 3:2

Mole of 1.5 g aluminum foil = 1.5/26.98

= 0.06 moles

Mole of 14 g CuCl2 = 14/134.45

= 0.10 moles

For every 3 moles of CuCl2, 2 mole of Al is needed.

Thus, for 0.10 moles of CuCl2, the mole of Al needed would be:

0.10 x 2/3 = 0.07 moles

CuCl2 is, thus, slightly in excess while Al is the limiting reagent.

Mole ratio of Al and Cu = 2:3

For 0.06 mole Al, the mole of Cu will be: 0.06x3/2 = 0.09 moles

Mass of 0.09 moles Cu = 0.09 x 63.55

= 5.71 g

Thus, less than 6.0 grams Cu is formed while a little CuCl2 would be left in the reaction mixture.

More on stoichiometric calculations can be found here: brainly.com/question/8062886

5 0

2 years ago

C3H7-C(=O)-NH2 IUPAC NAME ?

Yuri [45]

Answer:

Amide

Explanation:

O=NH2 is the Amide group versus NH2, which is the amine group.

7 0

3 years ago

Read 2 more answers

Pleaseeee help me

scoundrel [369]

Answer:

$2Al (s) + 3CuCl2( aq) --> 2AlCl3 (aq) + 3Cu(s)$

Explanation:

The main thing for this equation is to follow the amount on each side. Count each element on each side. Then by looking at the numbers figure out what numerical digit would make them equal.

For example:

On the left we have

Cu=1 and Cl=2.

But on the right we have

Cu=1 and Cl=3.

In order for them to be the same, we must add a coefficient of 3 to CuCl2 (aq0 on the left and a coefficient of 3 to Cu(s) on the right.

6 0

3 years ago

Consider an atom of oxygen in which the nucleus contains 8 protons and 8 neutrons. If it is doubly ionized, what is the charge o

inn [45]

Answer:

10 electrons will be present in an O2-

Explanation:

The atomic nucleus of oxygen contains 8protons and 8 neutron. It ionizes by gaining two more electrons making the total number of electrons in a doubly ionized oxygen to be 10 electrons.

7 0

3 years ago