Question

Chalk contains 3% of carbon, 10% of calcium and 12% of oxygen. Find the amount in grams
of each of these substances in 1 kg of chalk.​

Answer 1

Answer:

Amount of carbon= 3/100×1000= 30 gram

Amount of calcium= 10/100×1000 = 100 gram

Amount of oxygen= 12/100×1000=120 gram

Answer 2

Answer:

hyyy

Step-by-step explanation:

ᶠʳᵒᵐ ᵗʰᵉ ᵉᵠᵘᵃᵗᶤᵒⁿ ;

ᵀʰᵉ ᵃᵐᵃᵒᵘⁿᵗ ᵒᶠ ᶜʰᵃˡᵏ ⁼ ¹ ᵏᵍ ⁼ ¹⁰⁰⁰ᵍ.

ʷᵉ ʰᵃᵛᵉ ;

ᵃᵐᵒᵘⁿᵗ ᵒᶠ ᶜᵃᵗᵇᵒⁿ ᶤⁿ ᶤᵗ ⁼ ³ %ᵒᶠ ¹⁰⁰⁰ ᵍ.

⁼ ⁽ ³ / ¹⁰⁰⁾ × ¹⁰⁰⁰

⁼ ⁽ ³× ¹⁰ ⁾ ⁼³⁰g

ᴬᵐᵒᵘⁿᵗ ᵒᶠ ᶜᵃˡᶜᶤᵘᵐ ᶤⁿ ᶤᵗ ¹⁰% ᵒᶠ ¹⁰⁰⁰ ᵍ

⁼ ⁽¹⁰/¹⁰⁰⁾×¹⁰⁰⁰

⁼ ⁽ ¹⁰× ¹⁰⁾

⁼ ¹⁰⁰ ᵍ

ᴬᵐᵒᵘⁿᵗ ᵒᶠ ᵒˣʸᵍᵉⁿ ᶤⁿ ᶤᵗ ⁼ ¹² % ᵒᶠ ¹⁰⁰⁰

⁼ ⁽ ¹² / ¹⁰⁰⁾ × ⁽¹⁰⁰⁰⁾

⁼ ⁽¹² × ¹⁰⁾

⁼ ¹²⁰ᵍ

Answer.........

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