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sergiy2304 [10]
3 years ago
11

What are two social and economical impacts of Mass Movements?

Chemistry
1 answer:
RUDIKE [14]3 years ago
3 0

Answer:

Mass movement, or mass wasting, has significant effects on humans, including loss of property, severe injury and death.

Explanation:

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What type of energy does a ball have when it rolls down a hill?
spin [16.1K]
A. Kinetic energy
it is moving
5 0
2 years ago
Einstein used the photoelectric effect to prove that light has what?
Tomtit [17]
Einstein used the photoelectric effect to show that light can behave both as a particle and as a wave.
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2 years ago
How many moles are in 281 g of Ca(OH)2?
Natasha_Volkova [10]

Answer:

3.79 moles

Explanation:

To convert moles to gams of a substance we need to find the molar mass of the substance. For Ca(OH)₂ th molar mass is:

1Ca = 40.08g/mol

2O = 2*16g/mol = 32g/mol

2H = 2*1.01g/mol = 2.02g/mol

The molar mass is:

40.08g/mol + 32g/mol + 2.02g/mol = <em>74.1g/mol</em>

<em />

And moles are:

281g * (1mol / 74.1g) =

<h3>3.79 moles</h3>
5 0
2 years ago
How do I solve the following word problem: The half-life of Phosphorus - 32 is 14.3 days. It is used to study a plant's use of f
BaLLatris [955]

Half life is the time that it takes for half of the original value of some amount of a radioactive element to decay.

We have the following equation representing the half-life decay:

A=A_o\times2^{(-\frac{t}{t_{half}})_{}_{}}

A is the resulting amount after t time

Ao is the initial amount = 50 mg

t= Elapsed time

t half is the half-life of the substance = 14.3 days

We replace the know values into the equation to have an exponential decay function for a 50mg sample

A=\text{ 50 }\times2^{\frac{-t}{14.3}}

That would be the answer for a)

To know the P-32 remaining after 84 days we have to replace this value in the equation:

\begin{gathered} A=\text{ 50 }\times2^{\frac{-84}{14.3}} \\ A=0.85\text{ mg} \end{gathered}

So, after 84 days the P-32 remaining will be 0.85 mg

4 0
1 year ago
How many atoms are in 5.2 miles of aluminum​
Rashid [163]

Answer:

How many atoms are in 6.5 moles of zinc? 6.5 moles. 6.02 x 10. 23 atoms = 3.9 x 10. 24 ... 55.8g. 1 mole. 6. What is the mass of 0.250 moles of aluminum?

Explanation:

hope this help rate me

6 0
3 years ago
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