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Diano4ka-milaya [45]
4 years ago
8

which statement besy describes how the calormeter can be used to determine ghe specific heat capacity of the metal sample

Chemistry
1 answer:
Vesna [10]4 years ago
4 0

Answer:

Energy transfers to the metal from the water and calorimeter until they are all at room temperature.

Explanation:

i hope this helps

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A cobalt atom has 27 protons. What number of neutrons would make a cobalt
tamaranim1 [39]
The answers is 54 because 27 protons times theses nuts = 54
7 0
3 years ago
According to kinetic molecular theory, there are no forces of attraction between the particles of a liquid. TRUE FALSE
Dmitry [639]
FALSE cause that particles can't do that
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3 years ago
If 2.0 mL of 6.0M HCl is used to make a 500.0-mL aqueous solution, what is the molarity?
RideAnS [48]

Answer:

0.024M

Explanation:

Data obtained from the question include:

C1 = 6M

V1 = 2mL

C2 =?

V2 = 500mL

The molarity of the diluted solution can be obtained as follows:

C1V1 = C2V2

6 x 2 = C2 x 500

Divide both side by 500

C2 = (6 x 2) /500

C2 = 0.024M

The molarity of the diluted solution is 0.024M

5 0
3 years ago
Read 2 more answers
A metal ion (X) with a charge of 2+ is attracted to a nonmetal ion (Z) with a charge of 3-.Which formula represents the resultin
Viefleur [7K]

Answer:

X₃Z₂

Explanation:

A metal ion (X) with a charge of 2+  =  X²⁺

nonmetal ion (Z) with a charge of 3-   = Z³⁻

In a neutral compound, the charges but balance each other to remain neutral. However in this case, the charges are not balanced.

A simple way to make the charges balance is by tweaking the number of the ions present in the compound.

We do this by multiplying the metal ion with 3 and the non metal ion by 2.

That way we have;

Metal ion = 3X2⁺   (Total charge - 6⁺)

Non metal ion = 2Z3⁻  (Total charge -  6⁻)

The charges are now balanced. The formular of the compound is;

X₃Z₂

5 0
3 years ago
Read 2 more answers
Q1. Briefly explain why the Zeff experienced by a valence electron in Cl is larger than in Mg. Q2. Briefly explain why the Zeff
Inessa05 [86]

Answer:

See explanation

Explanation:

Q1:

Chlorine has 17 protons while magnesium has only 12 protons. Recall that the Zeff depends on the size of the nuclear charge. The greater the size of the nuclear charge, the larger the Zeff experienced by a valence electron.

Q2:

The larger the Zeff, the smaller the atomic radius. Since the valence electrons of Cl experience a greater Zeff than those of Mg due to greater size of the nuclear charge, the atomic radius of chlorine will be smaller than that of Mg.

Q3:

The radius of an atom increases as the value of the principal quantum number (n) increases down the group due to addition of more shells. The greater the number of shells added, the greater the principal quantum number (n) and the greater the atomic radius, hence the answer.

5 0
3 years ago
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