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Licemer1 [7]
3 years ago
13

What is the result in the double displacement reaction of hydrochloric acid and

Chemistry
1 answer:
gayaneshka [121]3 years ago
6 0

Answer:

Lithium chloride (LiCl), carbon dioxide, and water

Explanation:

Li₂CO₃ + HCl ⇒ LiCl + CO₂ + H₂O

When lithium carbonate reacts with hydrochloric acid, lithium chloride, water, and bubbles of carbon dioxide gas are given off. This is the result of a double displacement reaction followed by a decomposition reaction.

Hope that helps.

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The density of ammonia gas under certain conditions is 0.625 g/l. calculate its density in g/cm3.
MatroZZZ [7]
From the conversion of units:
1 cm^3 is equivalent to 1 mL
1 L is equivalent to 1000 mL
therefore,
to convert from liter to cm^3, we simply multiply by 1000.
Note that the multiplication will be done in the denominator.

Based on this:
density = (0.625 g/l) x (1g/1000 cm^3) = <span> 0.000625 g/cm^3 
            = 6.25 x 10^-4 g/cm^3</span>
6 0
3 years ago
What is the mass in grams of 120 liters at STP oh He gas​
skad [1K]

The mass of He gas = 21.428 g

<h3>Further explanation</h3>

Given

120 liters of He gas​

Required

the mass in grams

Solution

Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). At STP, Vm is 22.4 liters/mol.

Mol for 120 L :

\tt \dfrac{120}{22.4}=5.357~moles

Mass of He gas(MW=4 g/mol) :

\tt mass=mol\times Ar\\\\mass=5.357\times 4=21.428~g

5 0
2 years ago
What important chemical reaction stores energy
Evgesh-ka [11]

Answer: A chemical reaction that stores energy is called an endothermic reaction. More energy might be released as products form than the energy needed to break the reactants apart.

Explanation:

7 0
2 years ago
a sample of an unknown gas has a mass of 0.582g. it's volume is 21.3 mL a a temp of 100 degrees Celsius and a pressure of 754 mm
Zielflug [23.3K]

Answer:

Molar mass = 0.09 × 10⁴ g/mol

Explanation:

Given data:

Mass = 0.582 g

Volume = 21.3 mL

Temperature = 100°C

Pressure = 754 mmHg

Molar mass = ?

Solution:

(21.3 /1000 = 0.0213 L)

(100+273= 373 K)

(754/760 = 0.99 atm)

PV = nRT

n = PV/RT

n = 0.99 atm × 0.0213 L / 0.0821 atm. L. mol⁻¹. k⁻¹ × 373 K

n =0.02 mol/ 30.6

n = 6.5 × 10⁻⁴ mol

Molar mass = Mass/ number of moles

Molar mass = 0.582 g / 6.5 × 10⁻⁴ mol

Molar mass = 0.09 × 10⁴ g/mol

6 0
3 years ago
Many popular beverages are sold in two-kilo bottles? True or false
Tju [1.3M]
I believe that is false.
5 0
3 years ago
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