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GarryVolchara [31]
3 years ago
14

Why do some atoms form positive ions and others form negative ions?

Chemistry
1 answer:
Scrat [10]3 years ago
8 0
It is energetically favorable for all atoms to have a complete outer electron shell. Loosely, the atoms on the left hand side of the periodic table only have a few extra electrons in their outer shell so it is energetically favorable for them to lose them. The atoms on the right hand side of the periodic table almost have enough electrons in their outer shell and so they have a tendency to gain them. Once electrons have left an electron shell, an atom will have a positive charge because it has more protons (positive charges) than electrons (negative charges). Similarly, an electron which has gained electrons to complete its outer shell will have a negative charge because it now has more electrons (negative charge) than protons (positive charge).
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Hat is the molar mass of a substance?
Morgarella [4.7K]
The molar mass is what would you find on the periodic table and it is used in the mole conversions within chemistry. So the answer would have to be A: the mass in grams of one mole of a substance. 
7 0
4 years ago
According to Newton’s Third Law, if someone jumps off a skateboard, the skateboard will roll backwards because -
Andrej [43]

Answer:

for the force that sent the person forward, there is an equal force pushing back on the skateboard

5 0
4 years ago
Luis is helping his parents paint a border around the walls of a room. He uses a stencil to repeat the same design on each wall
iren [92.7K]

Answer:

Polymerization.

Explanation:

Polymerization can be defined as a type of chemical reaction in which molecules that are relatively small in size chemically combine to form a huge chain of molecules.

Simply stated, polymerization refers to a chemical reaction where two or more smaller molecules react to produce larger molecules of the same network or repetitive structural units.

In polymerization, the relatively small molecules are generally referred to as monomers while the larger molecules they produce are known as polymers.

Polymerization is given by the chemical formula;

nA -----> A(n).

In this scenario, Luis uses a stencil to repeat the same design on each wall to form one long grapevine with a bunch of grapes every foot along its length.

Hence, the type of chemical reaction this best model is polymerization because it involved repeating the same design (monomers) to form a long grapevine with a bunch of grapes (polymers).

5 0
3 years ago
Curious Carl and his lab partner were handed a 2 liter sealed flask containing two gases, neon and argon. The partial of each ga
stiv31 [10]

Answer:

it's difficult but i think the answer is

3 0
3 years ago
The area of a rectangle is 50 m2<br> If the height is 4 m, what is the<br> base?
Oliga [24]

Area = height × base

50 = 4 × base

Thus

base = 50/4

Base = 12.5 m

6 0
3 years ago
Read 2 more answers
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