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Sergio039 [100]

4 years ago

9

Critical thinking requires that

1 answer:

ladessa [460]4 years ago

7 0

C. Information from a particular source only be verified the first time the source is used

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This is the word geologists use for loose pieces of minerals and rock. The particles are transported by wind, water, or ice, and

qaws [65]

<span>Sediments
Sediments are solid materials that were broken down by the process of erosion, weather and transported by the water, wind or glaciers and then deposited in a new location. Sediment can consist of minerals and rocks and can be as small as a grain of sand or as large as a boulder.</span>

7 0

3 years ago

Read 2 more answers

What is physical weathering?

elena-14-01-66 [18.8K]

Physical weathering is caused by physical processes such as changes in temperature, freezing and thawing, and the effects of wind, rain and waves.

hope this helped

6 0

3 years ago

How many molecules are there in 0.75 mol NH3

vitfil [10]

3 *0.75 = 2.25 mol that’s is ur answer for this question

4 0

3 years ago

Compute the atomic density (the number of atoms per cm3 ... rather than the mass density g/cm3) for a perfect crystal of silicon

serious [3.7K]

Answer:

$\large\boxed{\large\boxed{5.00\times 10^{22}atoms/cm^3}}$

Explanation:

You can convert the <em>density</em> into <em>atomic density</em> using the <em>atomic weight </em>and Avogadro's number

A dimensional analysis is very helpful:

$\dfrac{g}{cm^3}\times \dfrac{mol}{g}\times \dfrac{atoms}{mol}=\dfrac{atoms}{cm^3}$

Follow the chain: g cancels with g, mol cancels with mol; at the end, what remains is atoms/cm³, which is what you want.

Use that with your data:

$\dfrac{2.33g}{cm^3}\times \dfrac{1mol}{28.09g}\times \dfrac{6.022\times 10^{23}atoms}{mol}=\approx 5.00\times10^{22}atoms/cm^3$

3 0

3 years ago

A bottle of soda has a PH of 3.

BaLLatris [955]

Answer:

The new pH of the solution $= 6$

Explanation:

Given

pH of bottle of Soda is $3$

As we know that

pH $= -$ log [H+]

We will derive the hydrogen ion concentration when pH is $3$

$3 = -$ log [H+]

Taking anti-log on both the sides, we get -

H+ ion is equal to $10^{-3}$

When the hydronuim ion concentration reduces by $\frac{1}{1000}$ of the original concentration, the new hydrogen ion concentration becomes

$\frac{1}{1000000} = 10^{-6}$

The new pH is

$= - log [ 10^{-6}]\\= 6$

4 0

3 years ago