## anonymous one year ago Magnesium makes up 2.1% by mass of Earth's crust. How many grams of magnesium are present if a sample of Earth's crust has a mass of 1.20 g ?

• This Question is Open
1. Rushwr

$1.2 * \frac{ 2.1 }{ 100 }$

2. Rushwr

0.0252g