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Alecsey [184]
3 years ago
5

How many grams of zinc are needed to produce 25.0 g ZnCl2

Chemistry
1 answer:
RideAnS [48]3 years ago
5 0
To solve this question, you would first need to write the reaction and then be able to convert one unit to another the critical unit of moles and then be able to convert it back into grams.

Zn + Cl2 -> ZnCl2.
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A plant would not be able to complete photosynthesis without
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Answer:

Glucose

Explanation:

It's the food plants need to complete photosynthesis.

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Describe two ways you think a sound wave could be stopped or could change change direction.
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Like any wave, a sound wave doesn't just stop when it reaches the end of the medium or when it encounters an obstacle in its path. Rather, a sound wave will undergo certain behaviors when it encounters the end of the medium or an obstacle. Possible behaviors include reflection off the obstacle, diffraction around the obstacle, and transmission (accompanied by refraction) into the obstacle or new medium

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Is silicon a compound yes or no​
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3 years ago
If 22.5L of nitrogen at 748 mm Hg are compressed to 725 mm Hg at constant temperature. What is the new volume?2.A gas with a vol
kykrilka [37]

Answer:

a)23.2 L

b)68.3kPa

c)7.5 atm

d)60.5L

e)1.67 atm

Explanation:

From Boyle's law:

P1V1=P2V2

P1= 748mmHg

P2=725mmHg

V1= 22.5L

V2??

V2= P1V1/P2= 748×22.5/725= 23.2 L

b)

V1=4.0L

P1= 205×10^3Pa

V2= 12.0L

P2=???

P2= P1V1/V2= 205×10^3×4/12

P2= 68.3×10^3 Pa or 68.3kPa

c)

P1= 1 atm

V1= 196.0L

P2= ??

V2= 26.0L

P2= P1V1/V2=1×196.0/26.0

P2= 7.5 atm

d)

V1= 40.0L

P1= 12.7×10^3Pa

V2=???

P2= 8.4×103Pa

V2= P1V1/P2= 12.7×10^3×40.0/8.4×103

V2=60.5L

e)

V1= 100mL

P1= 1atm

V2= 60mL

P2=???

P2= P1V1/V2= 1×100/60

P2= 1.67 atm

4 0
3 years ago
3) How many micrograms are found in 9.12 x 10-5 L of Water?
Ann [662]

Answer:

86.2 or 431/5

Explanation:

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6 0
3 years ago
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