Question

chalk contain 3% of carbon 10% of calcium in 12 percent of oxygen find the amount of each of these in gram into kg of Chalk

Answer 1

Answer:

i hope it helps.

Step-by-step explanation:

Given, Chalk is 1 kg = 1000 g

Amount of chalk in carbon = 3/100 * 1000

                                            = 30g

Amount of Calcium in chalk = 10/100 * 1000

            

                                               = 100g

Amount of Oxygen in chalk = 12/100 * 1000

                                               = 120g