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Natali [406]
3 years ago
5

If 125 cal of heat is applied to a 60.0-g piece of copper at 24.0 °C, what will the final temperature be? The

Chemistry
1 answer:
Darina [25.2K]3 years ago
3 0

Answer:

id answer but you only put the points at "5"

Explanation:

soooo......sorry.....

  • x^{2} blelllelelele

not

hehe

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The boiling points for the homonuclear diatomic molecules in the halogen family are 85 K, 238 K, 332 K, 457 K and 610 K. Which s
patriot [66]

Answer:

Cl_{2} has boiling point of 238 K

Explanation:

Boiling point depends on different intermolecular force such as molecular wight, dipole-dipole attraction force, hydrogen bonding, ionic attraction force.

Homonuclear diatomic molecules are covalent non-polar molecules and thereby free from dipole-dipole attraction force, hydrogen bonding and ionic interaction forces.

Hence, boiling point of homonuclear diatomic molecules depends solely on molecular weight.

We know, higher the molecular weight of a molecule, higher will be its boiling point. This phenomenon can be realized in terms of increasing london dispersion force with increase in molecular weight.

Decreasing order of molecular weight of halogen molecules :

I_{2} > Br_{2} > Cl_{2} > F_{2}

So, decresing order of boiling point of halogen molecules:

I_{2} > Br_{2} > Cl_{2} > F_{2}

Hence Cl_{2} has boiling point of 238 K

4 0
3 years ago
J. Explain how an atom's valence electron configuration determines its place on the periodic table.​
Darya [45]

Answer:

Elements having same valence electrons are placed in <u>same group.</u>

Explanation:

First, let's start with some basic concepts of modern periodic table:

1. Modern Periodic table : It is the arrangement of element in the increasing order of their atomic numbers

The Modern periodic table is divided into Periods and groups .

Periods : These are the horizontal rows. There are seven periods in the periodic table . Period 1 has 2 element. Period two and three has 8 elements , period 4 and 5 have 18 elements and the period 6 and 7 have 32 elements.

Same period have same number of atomic orbital(Shell)

Group : The group is the vertical columns . There are 18 groups in the modern periodic table.Those element which have same group number will also have same number of electron in their outermost shell. The number of electron in the outermost shell determines the valency of the element.

So, elements showing same valency are placed in same group.

All alkali are place in group 1 and have 1 valance electron in the outermost shell

5 0
3 years ago
What subatomic particle of the atom has no electric charge
amm1812
Neutrons have no electrical charge.
3 0
3 years ago
NEED HELP HAVE TO TURN IN IN 5 MIN
aliina [53]

Answer:

Recessive and Dominant

Explanation:

3 0
3 years ago
Read 2 more answers
Why isn't the mass of the electron included in the mass of an atom on the periodic table?
marta [7]
Its A because............
5 0
3 years ago
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