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Mars2501 [29]
4 years ago
12

Explain in your own words how DDT moved through the environment starting with spraying the farm crops

Chemistry
1 answer:
S_A_V [24]4 years ago
7 0

Answer:

here and a cylinder have the same radius and height. The volume of the cylinder is .



What is the volume of the sphere?









Mark this and

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If a material conducts heat easily, its a good _____. <br> It has to be a 18 letter word
Nonamiya [84]

Answer:

a thermal conductor

Explanation:

thats what its called

7 0
3 years ago
What is the mass, in grams, of a sample of 6.98 × 1024 atoms of magnesium (Mg)? Show your work or explain the steps that you use
CaHeK987 [17]

Hello!

* First Step: to know Avogrado's Law

We know that by the Law of Avogrado, for each mole of substance we have 6.02*10²³ atoms, if:

** Second Step: to know the molar mass of the solute

The molar mass of of magnesium = 24.30 g/mol

*** Third step: make the ratio mass / mol with atoms

1 mol we have 6.02*10²³ atoms

1 mole of Mg we have 24.30 g

Then we have:

24.30 g ------------- 6.02*10²³ atoms

x ----------------------- 6.98*10^24 atoms

\dfrac{24.30}{x} = \dfrac{6.02*10^{23}}{6.98*10^{24}}

multiply cross

6.02*10^{23}*x = 24.30*6.98*10^{24}

6.02*10^{23}\:x = 1.69614*10^{26}

x = \dfrac{1.69614*10^{26}}{6.02*10^{23}}

\boxed{\boxed{x \approx 281.75\:grams}}\end{array}}\qquad\checkmark

I Hope this helps, greetings ... DexteR! =)

7 0
3 years ago
How do you know if a chemical reaction has occurred?
never [62]
If one or more of the following occur: Gas formation, precipitate formation, color change, temperature change, or odor

3 0
3 years ago
Fossil fuels produce energy by being burned and produce which of the following emissions?
Veseljchak [2.6K]

Answer:

D

Explanation:

that should be the answer

6 0
3 years ago
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