All categories

3 years ago

Predict the number of each atom needed to form a molecule of potassium Sulfide.

Chemistry

1 answer:

vladimir2022 [97]3 years ago

8 0

Answer:

2.0 atoms of K and 1.0 atom of S are needed to form a molecule of potassium sulfide.

Explanation:

The potassium sulfide has the chemical formula K₂S.

∴ Every 1.0 molecule of K₂S composed of 2.0 atom of K and 1.0 atoms of S.

So, 2.0 atoms of K and 1.0 atom of S are needed to form a molecule of potassium sulfide.

You might be interested in

Examples of light effecting chemical change

Annette [7]

Answer:

burning of wood ,cooking an egg,baking a cake,rusting of iron,digestion of food .

8 0

2 years ago

What is the equilibrium expression for the reatcion bellow 2SO3(g)<=>O2(g)+2SO2(g)

Luda [366]

Answer:

[O2(g)][SO2(g)]^2/[SO3(g)]^2

8 0

3 years ago

How many moles are in 135g of Teflon?

Oliga [24]

1.34 moles are in 135g of Teflon.

Explanation:

Molecular formula of teflon is (C2H4)n

mass of teflon = 135 grams

atomic mass of teflon = 100.01 gram/mole

number of moles of teflon = ?

Formula used to calculate number of moles in a substance is given as:

number of moles = $\frac{mass}{atomic mass of 1 mole}$

putting the values in the above equation:

number of moles = $\frac{135}{100.01}$

number of moles = 1.34 moles

Teflon is polymer which is used for making non-stick coating, in 135 grams of teflon there are 1.34 moles in it.

5 0

3 years ago

Plz give me short note on isotopes in agriculture industries and medicine

Mumz [18]

Uses of isotopes:

In agriculture,

C-14 is used to trace the path of photosynthesis.

In medicine,

Iodine -131 is used in the treatment of

goiter

8 0

2 years ago

Water (H2O) is made up of molecules with a bent structure, whereas hydrogen sulfide (H2S) is also made up of molecules with a be

jeka94

Śhüt ûp and go pay attention in your class

3 0

3 years ago