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3 years ago

Who extended the idea that the mass of the atom was concentrated within the nucleus?

Chemistry

1 answer:

elena55 [62]3 years ago

3 0

Ernest Rutherford extended the idea that the mass of the atom was concentrated within the nucleus of the atom.

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denpristay [2]

Answer:

Potassium is an element, with the symbol K

Explanation:

An element is something that cannot be broken down any further, for example, calcium, its Ca.

A compound is when you bond two or more elements. Compounds can be broken down into its original elements, for example, H₂O, it contains two atoms of hydrogen and one atom of oxygen (both hydrogen and oxygen are elements).

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3 years ago

When a nonmetal bonds with a nonmetal it is a _ bond

Karolina [17]

It is a covalent bond

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3 years ago

What is the Molar mass of PbCO4

NNADVOKAT [17]

Answer:

207.2 g/mol

Explanation:

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3 years ago

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. An industrial ch

Inessa [10]

Answer:

The answer is " $\bold{4.97 \times 10^{-2}}$ "

Explanation:

Please find the complete question in the attached file.

Equation:

$2SO_2+O_2 \leftrightharpoons 2SO_3$

at $t=0 3.3 \ \ \ \ \ \ \ \ \ \ 0.79$

at equilibrium $3.3-p \ \ \ \ \ \ \ \ \ \ 0.79 - \frac{P}{2} \ \ \ \ \ \ \ \ \ \ \ \ P$

$p= 0.47 \ \ atm\\\\SO_2=3.3-0.47 = 2.83 \ \ atm\\\\O_2= 0.74 -\frac{0.47}{2}=0.74-0.235=0.555 \ atm\\\\K_P=\frac{[PSO_3]^2}{[PSO_2]^2[PO_2]}\\\\$

$=\frac{0.47^2}{2.83^2\times 0.555}\\\\=4.97 \times 10^{-2}$

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3 years ago

Which of the following elements has the highest electronegativity?

olga55 [171]

Bromine has the highest

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3 years ago