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grin007 [14]
3 years ago
10

what is the equation for A 450-gallon tank full of water is draining at a rate of 20 gallons per minute.

Mathematics
1 answer:
zhuklara [117]3 years ago
4 0

Answer: 150

Step-by-step explanation:

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A 15 foot flagpole casts an 11 foot shadow. At the exact same time a 28 foot tree casts a shadow. Which proportion would correct
coldgirl [10]
15/11=28/x 15x=308 308÷15=20.5 3 reapeted
8 0
3 years ago
The molar mass of AlCl3 is 133.34 g/mol. How many molecules of AlCl3 are there in 2 g?
Mnenie [13.5K]

To solve this problem, we have to apply mole-concept to this and we would need the molar mass of AlCl3.  2g of AlCl3 contains 9.034*10^21 molecules.

<h3>Number of Molecules in 2g of AlCl3</h3>

The molar mass of AlCl3 is given as 133.34g/mol

Data;

  • mass = 2g
  • molar mass = 133.34g/mol

Using the mole concept, we can equate the molar mass to the number of molecules present in the entity.

133.34g = 6.023*10^2^3

If we equate this

133.34g = 6.023*10^2^3\\2g = x molecules\\x = \frac{2*6.023*10^2^3}{133.34} \\x = 9.034*10^2^1 molecules

From the calculations above, 2g of AlCl3 contains 9.034*10^21 molecules.

Learn more on mole concept here;

brainly.com/question/21150359

#SPJ1

5 0
2 years ago
Is 16 the correct answer?​
NNADVOKAT [17]
It’s 34. hope this helps xx
6 0
3 years ago
Read 2 more answers
Sharon wants to know about how many pairs of sneakers 7th-grade students own. She c
Alex73 [517]

Answer:

an average 7th grader owns 3 pairs of sneakers

4 0
3 years ago
Read 2 more answers
The length of a city block running north to south in NYC is about 5 times 10 to the negative second power miles. The distance fr
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So nyc=5 times 10^-2 miles

NYC-Mumbai=7.5 times 10^3

so
5 times 10^-2 times x=7.5 times 10^3
divide both sdies by 5 times 10^-2
x=(7.5 times 10^3)/(5 times 10^-2)
when dividing scientific notation you do this
x=(7.5 times 10^3)/(5 times 10^-2)=(7.5/5) times ((10^3)/(10^-2))
to divide exponents just subtract top from bottom
3-(-2)=5
answer is
x=1.5 times 10^5

7 0
4 years ago
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