WILL MARK BRAINLEST IF CORRECT! 1) Burning toast physical or chemical
2) Cooking eggs: physical or chemical
3) Melting butter: physical or chemical
4) Removing the pulp (solid) from the orange juice using a juice strainer.: physical or chemical
5) Cutting the toast with a knife: physical or chemical
6) Digesting the food: physical or chemical

6.022×10²³ atoms of K

Explanation:

Given data:

Mass of KClO₃ = 122.5 g

Number of atoms of K = ?

Solution:

First of all we will calculate the number of moles of KClO₃ .

Number of moles = mass/molar mass

Number of moles = 122.5 g/ 122.5 g/mol

Number of moles = 1 mol

One mole of KClO₃ have 1 mole of K atoms.

Number of atoms of K:

1 mole = 6.022×10²³ atoms of K

Thus in 122.5 g of KClO₃  6.022×10²³ atoms of K are present.