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2 years ago

What’s the physical properties in calcium chloride

1 answer:

3 0

CaCl₂ is the chemical formula of calcium chloride, and its molar mass is 110.983 g/mol. It is an ionic compound comprising two chlorine anions and calcium cation. The bivalent calcium metal produces an ionic bond with two chlorine atoms. Calcium chloride is found in nature in its hydrated forms. It also occurs in huge concentrations in natural brine from salt deposits and salt lakes.

Calcium chloride is found as granules or flakes, as an odorless white powder. It exhibits a melting point of 782 degree Celsius, density of 2.15 g/ml, and a high boiling point of over 1600 degree Celsius.

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What is the energy of the reaction of aqueous decomposing carbonic acid?

muminat

Answer:

Aqueous carbonic acid (H2CO3) decomposes into a carbon dioxide gas and liquid water. Write a balanced equation for this reaction? | Socratic Aqueous carbonic acid (H2CO3) decomposes into a carbon dioxide gas and liquid water.

Explanation:

6 0

2 years ago

One person is pulling with a force of 250 newtons and the other person is pulling with a force of 200 newtons. The total force o

dangina [55]

Answer:

450

Explanation:

i add the 200 to 250

200

+250

450

6 0

2 years ago

A 2.5 mol sample of phosphorus pentachloride, PCl5 dissociates at 160C and 1.00atm to give 0.338 mol of phosphorus trichloride a

Readme [11.4K]

Explanation:

Moles of phosphorus pentachloride present initially = 2.5 mol

Moles of phosphorus trichloride at equilibrium = 0.338 mol

$PCl_5\rightleftharpoons PCl_3+Cl_2$

Initially

2.5 mol 0 0

At equilibrium:

(2.5 - x) mol x x

So, from above, the moles of phosphorus trichloride at equilibrium , x= 0.338 mol

Mass of 0.338 moles of phosphorus trichloride at equilibrium:

= 0.338 mol × 137.5 g/mol = 46.475 g

Moles of phosphorus pentachloride present at equilibrium :

= (2.5 - 0.338) mol = 2.162 mol

Mass of 2.162 moles of phosphorus pentachloride at equilibrium:

= 2.162 mol × 208.5 g/mol = 450.777 g

Moles of chloride gas present at equilibrium : 0.338 mol

Mass of 0.338 moles of chloride gas at equilibrium:

= 0.338 mol × 71 g/mol = 23.998 g

3 0

3 years ago

Whic of the following are causes of cataracts select all that apply

Dvinal [7]

Answer:

1. Previous Eye Surgery .

Explanation:

1. Your medical history can also affect your vulnerability to cataracts. For instance, a previous eye surgery can cause secondary cataracts. Other conditions including diabetes and excessive use of steroids accelerate the chances of cataracts once a person has already undergone previous eye surgeries.

3 0

2 years ago

Describe how you would obtain a beaker of pure water from salty water

Maslowich

Answer:

You can boil or evaporate the water and the salt will be left behind as a solid. If you want to collect the water, you can use distillation. This works because salt has a much higher boiling point than water. One way to separate salt and water at home is to boil the salt water in a pot with a lid.

Explanation:

4 0

2 years ago