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Readme [11.4K]
2 years ago
5

Revise the following statement to make it true:

Chemistry
1 answer:
tino4ka555 [31]2 years ago
6 0

Answer:

All the individuals of a species living within a specific area are collectively called a population.

Explanation:

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An automobile tire at 30°C has a pressure of 3.00 atm. Temperature decreases to -5°C. Assume that there is no volume change in t
dmitriy555 [2]

Answer:

P₂ = 2.7 atm

Explanation:

Given data:

Initial temperature = 30°C

Initial pressure = 3.00 atm

Final temperature = -5°C

Final pressure = ?

Solution:

Initial temperature = 30°C = 30 + 273 = 303 K

Final temperature = -5°C = -5 + 273 = 268 K

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

3.0 atm / 303 K = P₂/268 K

P₂ = 3.0 atm × 268 K / 303 K

P₂ = 804 atm. K /293 K

P₂ = 2.7 atm

7 0
3 years ago
Calcium + Sodium Bromide<br> balance
kompoz [17]
2Nabr +Ca(oh)2——->CaBr2+2NaOH
4 0
2 years ago
What is the scientific notation of 68000
Kaylis [27]
68000 = 6.8 * 10000 = 6.8 * 10^4  

hope this helps? c;
3 0
2 years ago
How many molecules are in 3.2 mol of ammonia,NH3
EastWind [94]
Here we are talking about ammonia which is a molecule. Now 1 mole of ammonia also contains 6.022<span> * 10^</span>23 molecules<span> of ammonia. In one molecule of ammonia,we have 1 nitrogen atom and 3 hydrogen atom.</span>
5 0
3 years ago
How many kg of solvent would contain 130 grams of ZnBr2 if the solution was 0.950 grams
Semenov [28]

Answer:

0.00731 kg

Explanation:

Given that solution is a product of solute and solvent.

Hence, solution = solute * solvent

In this case, the solution is given as 0.950 grams = 0.00095 kilograms

solute is given as 130 grams = 0.13 kilograms

Hence to get the amount of solvent in kilograms, we have

Solution ÷ Solute => 0.00095 ÷ 0.13

= 0.0073076923

=> 0.00731 kilograms

5 0
3 years ago
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