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2 years ago

Solid lithium chloride decomposes into chlorine gas and solid lithium . Write a balanced chemical equation for this reaction.

Chemistry

2 answers:

Charra [1.4K]2 years ago

8 0

LiCl(s)⇒Cl(g)+Li(s) this is the equation and it is balanced.

Liono4ka [1.6K]2 years ago

5 0

Answer:

$2LiCl_{(s)} ===> 2Li_{(s)} +Cl_{2(g)}$

Explanation:

The state symbols are important when writing balanced chemical equations, especially when they have been specified in the question. Chlorine is a diatomic gas when it is an element so that should not be forgotten when chlorine is isolated.

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A piece of metal with a mass of 611 g is placed into a graduated cylinder that contains 25.1 ml of water, raising the water leve

jeka94

Mass of metal piece is 611 g and volume of graduated cylinder is 25.1 mL. When metal piece is placed in the graduated cylinder water level increases to 56.7 mL. The increase in volume is due to volume of metal piece that gets added to the volume of water.

Thus, volume of metal piece can be calculated by subtracting initial volume from the final one.

$V_{metal}=V_{final}-V_{initial}=(56.7-25.1)mL=31.6 mL$

Thus, volume of metal piece will be 31.6 mL. The mass of metal piece is given 611 g, density of metal can be calculated as follows:

$d=\frac{m}{V}=\frac{611 g}{31.6 mL}=19.33 g/mL$

Therefore, density of metal is 19.33 g/mL.

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2 years ago

Every single-celled organism is able to survive because it carries out *

deff fn [24]

Answer:

Every single celled organism is able to survive because it carries out metabolic activities.

Metabolic activity is a set of chemical reactions which are needed for an organism to maintain it's life

Explanation:

the various types of metabolic processes keep an organism alive. There are various types of metabolic processes that takes place in the body of living organism.

These are cellular respiration, reproduction, excretion, digestion et cetera. Every living cell has these processes going on in their body to keep them alive.

Living organism need energy to carry out these processes which they get by eating food.

Read more on Brainly.com - brainly.com/question/12186942#readmore

6 0

2 years ago

A 50.6 grams sample of magnesium hydroxide (Mg(OH)2) is reacted with 45.0 grams of hydrochloric acid (HCl). What is the theoreti

zysi [14]

<span> Mg(OH)2(s) + 2HCl(aq) yield MgCl2(aq) + 2H2O(l)

grams HCl required = (50.6 grams Mg(OH)2) * (1 mol Mg(OH)2 / 58.3197 grams Mg(OH)2) * (2 mol HCl / 1 mol Mg(OH)2) * (36.453 grams HCl / 1 mol HCl) = 63.26 grams HCl required

Since there are only 45.0 grams HCl, then HCl is the limiting reactant.

theoretical yield MgCl2 = (45.0 grams HCl) * (1 mol HCl / 36.453 grams HCl) * (1 mol MgCl2 / 2 mol HCl) * (95.211 grams MgCl2 / 1 mol MgCl2) = 58.6 grams MgCl2 </span>

7 0

2 years ago

Read 2 more answers

Which sentence correctly describes an aspect of the Antarctic treaty system

kirza4 [7]

The answer is C. It bans the exploitation of mineral resources

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2 years ago

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In the synthesis of barium carbonate from an alkali metal carbonate (M2CO3 where M is one of the alkali metals) a student genera

Paraphin [41]

Answer:

0.019 moles of M2CO3

Explanation:

M2CO3(aq) + BaCl2 (aq) --> 2MCl (aq) + BaCO3(s)

From the equation above;

1 mol of M2CO3 reacts to produce 1 mol of BaCO3

Mass of BaCO3 formed = 3.7g

Molar mass of BaCO3 = 197.34g/mol

Number of moles = Mass / Molar mass = 3.7 / 197.34 = 0.0187 ≈ 0.019mol

Since 1 mol of M2CO3 reacts with 1 mol of BaCO3,

1 = 1

x = 0.019

x = 0.019 moles of M2CO3

3 0

2 years ago