What is the definition of polar in Chemistry?

1 answer:

3 0

The definition of Polar in Chemistry is a polar bond is a covalent bond between two atoms where the electrons forming the bond are unequally distributed.

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What does the atomic mass of a neutral atom tell you?

ExtremeBDS [4]

Answer:

yes

Explanation:

6 0

3 years ago

Sodium tripolyphosphate is used in detergents to make them effective in hard water. calculate the oxidation number of phosphorus

Fed [463]

Step 1:
Write molecular Formula,

Na₅P₃O₁₀
Step 2:
Assign Oxidation number to Na (which is +1) and O (which is -2), and X (unknown) for P.
(+1)₅ + (X)₃ + (-2)₁₀ = 0

Zero means overall charge on molecule is zero (Neutral).

Step 3:
Now solve for X,
(+5) + (X ÷ 3) + (-20) = 0

X ÷ 3 = -5 + 20

X ÷ 3 = +15

X = +15 ÷ 3

X = +5

Result:
Oxidation number of P is +5.

3 0

3 years ago

How is the atomic number related to core electrons?

Bas_tet [7]

Answer:

Core electrons are the electrons in an atom that are not valence electrons and therefore do not participate in bonding. The number of valence electrons of an element can be determined by the periodic table group of the element

Explanation:

4 0

4 years ago

How many protons, electrons, and neutrons does an atom with atomic number 50 and a mass number of 125 contain?

EleoNora [17]

Answer:

a) 50 protons, 50 electrons, 75 neutrons

Explanation:

How many protons, electrons, and neutrons does an atom with atomic number 50 and a mass number of 125 contain?

a) 50 protons, 50 electrons, 75 trons

b) 75 electrons, 50 protons, 50 neutrons

c) 120 neutrons, 50 protons, 75 electrons

atomic number IS the number of protons

atomic mass IS the total of protons + neutrons

so 50 protons

125-50 = 75 neutrons

in a neutral atom,

number of negative electrons = number of positive protons

a) 50 protons, 50 electrons, 75 neutrons

3 0

3 years ago

Na2SO4(aq) + CaCl2(aq) --> CaSO4(s) +

Olenka [21]

Answer:

double replacement

Explanation:

7 0

3 years ago