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Nitella [24]
2 years ago
7

Convert 55.0 miles per hour to feet per second

Chemistry
1 answer:
labwork [276]2 years ago
7 0

Answer:

80.667

Explanation:

math

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Description of how the combined gas law must be modified to introduce the number of moles
telo118 [61]
So the ideal gas law is pv=nrt
The letter n stands for the number of moles. divide both side by rt to isolate.
pv/rt=n
8 0
3 years ago
What is 93,000,000 in scientific notation?
DanielleElmas [232]
I believe it is 9.3x10^7
5 0
3 years ago
How many atoms are in 22 grams of copper metal?
strojnjashka [21]
Atomic mass Cu = 63.546 a.m.u

63.546 g ---------------- 6.02x10²³ atoms
22 g --------------------- ??

22 x (6.02x10²³ ) / 63.546 => 2.08x10²³ atoms

hope this helps!
6 0
3 years ago
How many gallons of gasoline that is 5% ethanol must be added to 2,000 gallons of gasoline with no ethanol to get a mixture that
Amanda [17]

Answer:

V_1= 3000 gal

Explanation:

We have 3 solutions:

  • Solution 1 (with ethanol)
  • Solution 2 (no ethanol)
  • Final solution

V_f=V_1 + V_2

and for the ethanol:

V_f*0.03=V_1*0.05 + V_2*0

V_f=V_1 \frac{5}{3}

Combining:

V_1 \frac{5}{3}=V_1 + V_2

V_1 \frac{2}{3}= V_2

V_1= \frac{3}{2} V_2

If V2=2000 gal:

V_1= \frac{3}{2} 2000 gal

V_1= 3000 gal

8 0
3 years ago
Complete the sentensent.Use the present simple or the present continuous.
Sliva [168]

Answer:

does your son ever talk to strangers?

Explanation:

6 0
3 years ago
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