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3 years ago

What must differ beween the atom of two different elements?

Chemistry

2 answers:

jeyben [28]3 years ago

8 0

Answer:

<h2>They must differ by having a different amount of valence electrons.</h2>

Explanation:

Valence electrons are the outermost electrons, and most atoms must have 8 atoms to be stable (except hydrogen and helium). This is called a covalent bond. Then, once the atoms share electrons, it forms a new element, like sodium and chlorine making salt, or NaCl. Or also like water, or H2O.

kodGreya [7K]3 years ago

5 0

The number of protons must differ between two different elements

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2 years ago

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3 years ago

Add a constant temperature when the volume of the gas is decreased what happens to its pressure

Margaret [11]

Answer:

<h2>Pressure will increase</h2>

Explanation:

At a constant temperature, the pressure of gas will increase proportional to the decrease in volume of the gas.

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2 years ago

Chloroform is a liquid once used for anesthetic. What is the volume of 5.0 g of chloroform? The density of chloroform 1.49 g/mL

mario62 [17]

Answer:

3.3557047 mL

Explanation:

The density can be found using the following formula:

$d=\frac{m}{v}$

Let's rearrange the formula to find the volume, $v$ .

$d*v=\frac{m}{v}*v$

$d*v=m$

$\frac{d*v}{d} =\frac{m}{d}$

$v=\frac{m}{d}$

The volume can be found by dividing the mass by the density. The mass of the chloroform is 5 grams and the density is 1.49 grams per milliliter. Therefore,

$m= 5g \\d= 1.49 g/mL$

Substitute the values into the formula.

$v=\frac{5g}{1.49 g/mL}$

Divide. When we divide, the grams, or g, in the numerator and denominator will cancel out.

$v= \frac{5}{1.49}mL$

$v=3.3557047 mL$

The volume of 5 grams of chloroform is 3.3557047 milliliters

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3 years ago

What is the name of the binary compound that has the formula k2s?

kozerog [31]

Potassium sulfide, also known as dipotassium monosulfide, consists of two potassium ions bonded to a sulfide atom, rendering the chemical formula K2S.<span>Rarely found in nature due to its high reactivity with water, potassium sulfide is refined from the more common potassium sulfate (K2SO4) and is used in many industries</span>

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3 years ago

What must differ beween the atom of two different elements?​

What must differ beween the atom of two different elements?