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3 years ago

Explain why the freezing of water into ice causes the cracks to widen

Chemistry

1 answer:

horrorfan [7]3 years ago

4 0

Answer:

The freezing of water into ice causes the cracks to widen because it occupy more space.

Explanation:

When the water change its state of liquid to solid state due to decrease in temperature, it contracts means occupy less space but when the temperature reaches to 4 degree Celsius, it starts to expand. When the temperature goes below 0 degree Celsius, it will cause more expansion and occupy more space that causes the cracks to widen.

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Ughh please help me

TEA [102]

Answer:

Substance 2

Explanation:

The stronger the intermolecular forces are, the more energy is required, so the higher the melting point is.

5 0

3 years ago

Read 2 more answers

In the first order reaction A → products, the initial concentration of A is 0.1 108M, and 44 s later, 0.0554M. What is the initi

lilavasa [31]

Answer : The initial rate of the reaction is, $1.739\times 10^{-3}s^{-1}$

Explanation :

First we have to calculate the rate constant of the reaction.

Expression for rate law for first order kinetics is given by :

$k=\frac{2.303}{t}\log\frac{[A_o]}{[A]}$

where,

k = rate constant = ?

t = time taken for the process = 44 s

$[A_o]$ = initial amount or concentration of the reactant = 0.1108 M

$[A]$ = amount or concentration left time 44 s = 0.0554 M

Now put all the given values in above equation, we get:

$k=\frac{2.303}{44}\log\frac{0.1108}{0.0554}$

$k=0.0157$

Now we have to calculate the initial rate of the reaction.

Initial rate = K [A]

At t = 0, $[A]=[A_o]$

Initial rate = 0.0157 × 0.1108 = $1.739\times 10^{-3}s^{-1}$

Therefore, the initial rate of the reaction is, $1.739\times 10^{-3}s^{-1}$

8 0

3 years ago

What type of soil has the finest of all the soil particles, measuring fewer than 0.002 millimeters in size?

Olin [163]

Answer:

Clay soil

Explanation:

There are basically three types of soil namely: Sandy soil, clayey soil and loamy soil. Each of this soil type possess their own distinguishing characteristics. For example, on the basis of particle size and texture, CLAY SOIL possesses the smallest and finest particles.

Particles in a clay soil weighs lesser than 0.002 millimeters (mm) in size, making it have a high water holding or retention capacity.

3 0

3 years ago

The density of copper is 8.94 g/cm3. An irregular shaped sample of metal is 14 g and displaces a volume of 2.98 mL. (a) Find the

Vedmedyk [2.9K]

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

mass of metal = 14 g

volume = 2.98 mL = 2.98 cm³

It's density is

$density = \frac{14}{2.98} \\ = 4.69798657...$

We have the answer as

4.70 g/cm³

The metal is not copper since it's density is less than that of copper.

Hope this helps you

8 0

3 years ago

Which statement best describes how to predict the formula of a stable ionic compound?

Alisiya [41]

Answer:

what statement

Explanation:

6 0

3 years ago