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3 years ago

Which of the following are potential benefits of wind turbines? (may be more than one answer)

Chemistry

1 answer:

Inga [223]3 years ago

7 0

All except for C. And it's good for the environment.

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Describe how PERIODS and GROUPS are set up on the Periodic Table of Elements.

Oliga [24]

Answer:

Periods are horizontal rows (across) the periodic table, while groups are vertical columns (down) the table. Atomic number increases as you move down a group or across a period.

(Love your pfp btw)

Explanation:

8 0

2 years ago

Many food chains together create a______

Amanda [17]

Many food chains together create a food web.

hope this helps,, have a nice day :))

3 0

2 years ago

If a 2.50 liter container is filled with Ne gas at a pressure of 650 mm Hg and at 25°C, what mass of Ne is in the container?

seraphim [82]

Answer:

1.76 g is the mass of Ne is in the container.

Explanation:

We use the equation given by ideal gas which follows:

$PV=nRT$

where,

P = pressure of the gas = 650 mm Hg

V = Volume of the gas = 2.50 L

T = Temperature of the gas = $25^oC=[25+273]K=298K$

R = Gas constant = $62.3637\text{ L.mmHg }mol^{-1}K^{-1}$

n = number of moles of Ne gas = ?

Putting values in above equation, we get:

$650mmHg\times 2.50L=n\times 62.3637\text{ L.mmHg }mol^{-1}K^{-1}\times 298K\\\\n=\frac{650\times 2.50}{62.3637\times 298}=0.0874mol$

Also, molar mass of Ne = 20.1797 g/mol

So, $Mass = Moles\times Molar\ mass = 0.0874\times 20.1797 g = 1.76\ g$

<u>1.76 g is the mass of Ne is in the container.</u>

7 0

3 years ago

How do you write the compound Mg3N2? Are Roman numerals included as well?

GREYUIT [131]

Answer:

It is written exactly like that; Mg3N2

Explanation:

Roman numerals are used sometimes to show the charge of an ion that can be multiple charges.

5 0

3 years ago

I need help with this

Ganezh [65]

1. 26
2. 115
THIS IS TO REACH 20 CHARACTERS

7 0

2 years ago

Read 2 more answers