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leonid [27]
3 years ago
6

What is the name of the instrument used to measure the pressure of a contained gas? *

Chemistry
1 answer:
Natasha_Volkova [10]3 years ago
3 0

Answer:Barometer :

Barometer is a scientific device. It is used to measure air pressure in environment. Air pressure changes with distance upper and bottom sea level.

Barometer is also used for measure altitude.

Barometric pressure has main effects on water and atmosphere conditions.

Hence, Barometer is used to measure air pressure.

Explanation:

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A certain object has a volume of 25.0 ml and a mass of 100 g. what is the density of the object
Tpy6a [65]
Density= mass/volume

             = 100/25
density  = 4g/ml
8 0
3 years ago
The half-life of a strontium isotope is 25 years. How much of this particular isotope will remain after 100 years if the startin
Phoenix [80]

Answer:

1 gram

Explanation:

Half life = 25 years

Starting mass = 16 grams

Time = 100 years

Number of half lives = Time / Duration of Half life = 100 / 25 = 4

After first Half life;

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After Second Half life;

Remaining mass = 8 / 2 =  4 g

After Third Half life;

Remaining mass = 4 / 2 =  2 g

After Fourth Half life;

Remaining mass = 2 / 2 = 1 g

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2 years ago
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Answer:  457.8

Explanation:

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8 0
2 years ago
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Answer:

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Explanation:

7 0
3 years ago
Given the equation representing a solution equilibrium: BaSO4(s) &lt;—&gt; Ba2+ (aq) + SO4 2- (aq)
goldenfox [79]

Answer:

The equilibrium shifts to the left, and the concentration of Ba2+(aq) decreases

Explanation:

Whenever a solution of an ionic substance comes into contact with another ionic compound with which it shares a common ion, the solubility of the ionic substance in solution decreases significantly.

In this case, both BaSO4 and Na2SO4 both possess the SO4^2- anion. Hence SO4^2- anion is the common ion. Given the equilibrium;

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This implies that the equilibrium will shift to the left, (more undissoctiated BaSO4) hence decreasing the Ba^2+(aq) concentration.

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3 years ago
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