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Delicious77 [7]
4 years ago
14

50 POINTS - FAIRLY SIMPLE QUESTION............. How does calcium carbonate react with rain when the rain is in the air, while ca

lcium carbonate is on earth?
Chemistry
2 answers:
solniwko [45]4 years ago
8 0
The water will react with the calcium carbonate to create agricultural lime. This occurs because the water is not pure water and has calcium in it. The calcium ions from the rain water undergo a chemical reaction with the calcium carbonate's carbonate ions. 
mr Goodwill [35]4 years ago
4 0
Ut dissloves or sommat
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AlladinOne [14]
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Read 2 more answers
How many grams of NaOH are<br> needed to make 400. mL of<br> 1.50 M solution?
juin [17]

Answer:

24g of NaOH are required

Explanation:

Molarity, M, is an unit of concentration widely used in chemistry defined as the ratio between moles of solute (In this case, NaOH), and volume of solution in liters.

We can find the moles of NaOH and its mass with the volume and desired concentration as follows:

<em>Moles NaOH:</em>

400.0mL = 0.400L * (1.50mol / L) = 0.600 moles NaOH

<em>Mass NaOH -Molar mass: 40.0g/mol-:</em>

0.600 moles * (40.0g / mol) =

<h3>24g of NaOH are required</h3>
7 0
3 years ago
The pressure of a sample of helium in a 200. ml. container is 2.0 atm. If the 5 points
just olya [345]

The pressure of the gas = 40 atm

<h3>Further explanation</h3>

Given

200 ml container

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final volume = 10 ml

Required

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\tt \rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}

Input the value :

P₂ = P₁V₁/V₂

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3 0
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NemiM [27]
Here is your answer

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C3H8 +\bold{5}O2-------> \bold{3}CO2 + \bold{4}H2O

Hence the equation is balanced.

HOPE IT IS USEFUL
8 0
3 years ago
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