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3 years ago

Is calcium chloride soluble in water?

Chemistry

2 answers:

Alla [95]3 years ago

5 0

Answer:

Yes

Explanation:

Calcium Chloride is an inorganic compound, a salt that can dissolve in water.

klio [65]3 years ago

5 0

Calcium chloride is a chemical compound of calcium and chlorine. It is highly soluble in water and It is a salt that is solid at room temperature.

Calcium chloride is a water-soluble ionic compound and its chemical formula is CaCl2.

It is extremely hygroscopic and liberates large amounts of heat during water absorption and on dissolution.

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Calculate the hight of a column of liquid glycerol in meters required to exert the same pressure as 3.02 m if CCl4?

katovenus [111]

Answer:

Approximately $3.81\; \rm m$ .

Explanation:

Look up the density $\rho$ of carbon tetrachloride, $\rm CCl_4$ , and glycerol:

Density of carbon tetrachloride: approximately $1.59\times 10^{3}\; \rm kg \cdot m^{-3}$ .
Density of glycerol: approximately $1.26\times 10^{3}\; \rm kg \cdot m^{-3}$ .

Let $g$ denote the gravitational field strength. (Typically $g \approx 9.81\; \rm N \cdot kg^{-1}$ near the surface of the earth.) For a column of liquid with a height of $h$ , if the density of the liquid is $\rho$ , the pressure at the bottom of the column would be:

$P = \rho\cdot g \cdot h$ .

The pressure at the bottom of this carbon tetrachloride column would be:

$\begin{aligned} P &= \rho \cdot g \cdot h \\ & \approx 1.59\times 10^{3} \; \rm kg \cdot m^{-3} \times 9.81\; \rm N \cdot kg^{-1} \times 3.02 \; \rm m \approx 4.71 \times 10^{4} \; \rm N \cdot m^{-2} \end{aligned}$ .

Rearrange the equation $P = \rho\cdot g \cdot h$ for $h$ :

$\displaystyle h = \frac{P}{\rho \cdot g}$ .

Apply this equation to calculate the height of the liquid glycerol column:

$\begin{aligned}h &= \frac{P}{\rho \cdot g} \\ &\approx \frac{4.71 \times 10^{4}\; \rm N \cdot m^{-2}}{1.26 \times 10^{3}\; \rm kg \cdot m^{-3} \times 9.81\; \rm N \cdot kg^{-1}} \approx 3.81\; \rm m\end{aligned}$ .

4 0

3 years ago

An endothermic process is one in which heat is ________ from the surroundings.1) gained 2.) increased 3.) lost 4.) repelled

kramer

The answer is 1) gained

8 0

3 years ago

From the following data ,determine of formation for diborane(B2H2(g), at 25

Oksi-84 [34.3K]

2Bs believe is the answer I’m not sure tho

7 0

3 years ago

How do the results of the iodine test indicate that hydrolysis of starch occurred

Irina18 [472]

Answer:

Blue color of iodine-starch complex is disappear upon hysrolysis

Explanation:

Starch:

Starch is a polysaccharide

it is energy reservoir.

starch is made of monomers of glucose in a chain form.

The simplest form of starch is linear polymer amylose.

Iodine Test:

In this test iodine solution added to the solution to check the presence of starch.

Iodine solution = elemental iodine + KI

Result of Iodine Test:

when the iodine solution (I₃⁻) is added to a solution it show two types of result.

if the starch is present this I₃⁻ form a complex with amylose chain of starch and impart a dark blue color.

if starch is not present then the color will be orange or yellow.

Hydrolysis of Starch:

Hydrolysis of starch is carried out by an enzyme, this enzyme break down the starch into simpler sugar molecule.

So,

When the hydrolysis of starch occur the starch convert to glucose. Then the blue color of starch and iodine complex formed during iodine test is disappear that will be the indication of hydrolysis of starch.

6 0

3 years ago

Measure and record the masses of all metal strips you set out in front of the test tubes

jeka94

Magnesium ribbon dissolves in zinc nitrate and copper nitrate solutions.

Even though the question is incomplete and refers to your practical work, however, I will try to help you as much as I can.

Metals dissolves in solutions of other metals that are lower than them in the electrochemical series. Hence, copper strip will show no change in magnesium nitrate or zinc nitrate solution. A zinc strip will not show any change in magnesium nitrate or zinc nitrate.

However, a magnesium ribbon will dissolve very quickly in zinc nitrate and copper nitrate solutions.

Learn more: brainly.com/question/14396802

3 0

2 years ago