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vodka [1.7K]
4 years ago
10

15 is what percent of 40?

Mathematics
1 answer:
bekas [8.4K]4 years ago
5 0
Divide 15 by 40 to get the percent and that tells you that its 0.375 once you have that you move the decimal 2 spots to the left to get 37.5%
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Alenkinab [10]
Turn 1 7/8 into 15/8
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3 years ago
The number of macoun apples is 30% of the total number of apples Andie
Vesna [10]

Answer:

90 is ur anwser

Step-by-step explanation:

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Answer with solution
adelina 88 [10]
In general, the scalar multiple of k times u,<span> is this: 

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URGENT will give brilliant mark For the reaction 2Na + Cl2 ------ 2NaCl, how many grams of sodium chloride can be produced from
SVETLANKA909090 [29]

Answer:

825 g

Step-by-step explanation:

Here's my work:

500g Cl2 l   1mol Cl2  l  2 mol NaCl   l  58.5 g NaCl

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= 823.94  - the rounding can be a little off

The first thing you have to do is convert the 500 g of Cl2 into moles.  So you get the mass of Cl which is 35.5, but Cl is diatomic by itself so you multiply 35.5 x 2 and get 71.   now on the third column you are comparing the mol ratios of the equation.  The equation is 2Na + Cl2 ---> 2NaCl, so you see that there is no coefficient in front of Cl2 so that means there is 1 mol, and then you see that in the product there is a  coefficient of 2 in front of NaCl so that means there is 2 moles.  Then finally you have to convert the moles backs into grams where you just add the masses of Na and Cl .  You multiply across the top  and then divide that number by the bottom row.

6 0
3 years ago
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