Answer:
Put the info in the essay obviously and about it.
Explanation:
1) 7.15 * 10^6
since the exponent of the scientific notation is positive, move 6 places to the right.
so, <em>7.15 * 10^6 = 7150000</em>
2) 3.03 * 10^-8
Since the exponent of the scientific notation is negative, move the decimal point 8 places to the left.
so,<em> 3.03 * 10^-8 = 0.0000000303</em>
<em />
3)<em> </em>4.9 * 10^-1
since the exponent of the scientific notation is negative, move 1 decimal place to the left.
so,<em> 4.9 * 10^-1 = 0.49</em>
<em />
4) 2.886 * 10^5
since the exponent of the scientific notation is positive, move 5 decimal places to the right.
so,<em> 2.886 * 10^5 = 288600</em>
B would be the answer for this question
Mass of Oxygen = 95.36 g
<h3>Further explanation</h3>
A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.
<em>How many grams of oxygen (O2) react with 3.97 moles of AI?</em>
Reaction
4 Al + 3 O₂ → 2 Al₂O₃
From the equation , mol ratio Al : O₂ = 4 : 3, so mol O₂ :
mass O₂(MW=32 g/mol) :