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4 years ago

During this____rocks fall because gravity and then build up at the base of the cliff

Chemistry

2 answers:

Kazeer [188]4 years ago

7 0

Answer:

The Answer is B

Explanation:

i just answered the question

ZanzabumX [31]4 years ago

6 0

Answer:

During <u>mass wasting/mass movement</u> rocks fall because gravity and then build up at the base of the cliff

Explanation:

Weathered materials are moved by forces of gravity from a higher place to a lower one.Some occurs sudden with adverse effects such as landslides while some movements are less dramatic such as slump and creep movements that move materials slowly to the bottom of a hillside.In mass wasting, weathered material experience less forces holding them causing them to fall to the base of a cliff forming a talus slope.

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The atomic weight of copper is 63.546 amu. The two naturally occuring isotopes of copper have the following masses 63Cu, 62.9298

strojnjashka [21]

Answer:

The percent isotopic abundance of Cu-65 is 30.79 %.

The percent isotopic abundance of Cu-63 is 69.21 %.

Explanation:

we know there are two naturally occurring isotopes of carbon, Cu-63 (62.9298 amu) and Cu-65 (64.9278 amu)

First of all we will set the fraction for both isotopes

X for the isotopes having mass 62.9298 amu

1-x for isotopes having mass 64.9278 amu

The average atomic mass of copper is 63.546 amu.

we will use the following equation,

62.9298 x + 64.9278 (1-x) = 63.546

62.9298x + 64.9278 - 64.9278x = 63.546

62.9298x - 64.9278x = 63.546 - 64.9278

-1.998 x = -1.3828

x=-1.3828 / -1.998

x= 0.6921

0.6921 × 100 = 69.21 %

69.21 % is abundance of Cu-63 because we solve the fraction x.

now we will calculate the abundance of Cu-65.

(1-x)

1-0.6921 = 0.3079

0.3079 × 100 = 30.79 %

30.79 % for Cu-65.

6 0

3 years ago

What were the criteria of Nils Bohlin’s solution to safer seatbelts?

DedPeter [7]

What that person said

3 0

4 years ago

Compare and contrast the behavior of the food coloring and the floating pieces of paper before and after adding heat to the syst

Leviafan [203]

Answer:

the answer is c

Explanation:

7 0

3 years ago

Write the two balanced equations, one for the incomplete combustion of methane (to form carbon monoxide and water vapor), and an

kompoz [17]

Answer:

$2CH_{4(g)} +3O_{2(g)} -->2CO(g)+4H_{2}O_{(g)}\\CH_{4(g)} +2O_{2(g)} -->CO_{2(g)} +2H_{2}O_{(g)} \\$

Explanation:

$2CH_{4(g)} +3O_{2(g)} -->2CO(g)+4H_{2}O_{(g)}\\CH_{4(g)} +2O_{2(g)} -->CO_{2(g)} +2H_{2}O_{(g)} \\$

The incomplete combustion of alkanes, and other fuels actually, happens when there is a limited supply of oxygen. Instead of the fuel burning completely to produce carbon dioxide, it produces carbon monoxide instead.

This gas is harmful to jumans because it combines with haemoglobin in lood and takes up space that belongs to oxygen which can lead to suffocation or even death

6 0

3 years ago

The radius of a strontium atom is 215 pm. How many strontium atoms would have to be laid side by side to span a distance of 2.10

Alex777 [14]

Here we have to get the number of strontium atom needed to be laid side by side to span a distance of 2.10 mm.

9.03×10⁷ number of strontium atoms are needed to cover the distance of 2.10mm.

The radius of the strontium atom is 215 pm, thus the diameter of strontium atom is (2×215) = 430 pm.

Now we know 1 pm is equivalent to 10⁻⁹ mm. Thus 430 pm is equivalent to (430×10⁻⁹) = 4.3×10⁻⁷ mm.

Thus 1 strontium atom can occupy 4.3×10⁻⁷mm of space. Now the distance to be occupied by the lay down of the strontium atom side by side of the span is 2.10 mm.

Hence, $\frac{2.10}{4.3}$ ×10⁷ = 9.03×10⁷ number of atoms are needed.

4 0

3 years ago

Read 2 more answers