Answer:
False
Explanation:
The first step in the scientific method if making a hypothesis.
brainliest please. . .
B i think and i hope this helps you
Answer:
Explanation:
The equation for this chemical reaction is:
2Ca + O2 -> 2CaO
So 2 moles of Ca react with 1 mole of O2 to form 2 moles of CaO.
Given 3.9 moles of Ca and 2.35 moles of O2,
Ca is the greater reactant as it will be used up.
O2 is the reactant in excess and there will be 2.35 - 3.9/2 = 0.4 moles left.
As mass of 1 mole of O2 is 32g, 0.4 moles of O2 = 0.4 * 32 = 12.8g
Moles of CaO formed = moles of Ca = 3.9
As mass of 1 mole of O2 is 56g, 3.9 moles of CaO = 3.9 * 56 = 218.4g of CaO
Answer:
$1320
Explanation:
Data obtained from the question include:
Principal (P) = $22000
Rate (R) = 12 %
Time (T) = 6 months
There are 12 months in a year i.e
12 months = 1 year.
Therefore, 6 months = 6/12 = 1/2 year
Interest (I) =?
Interest is related to principal, rate and time by the following equation:
I = PRT
I = 22000 x 12% x 1/2
I = 22000 x 12/100 x 1/2
I = $1320
Therefore, the interest revenue earned for the entire term of the note is $1320
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