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Andru [333]
3 years ago
13

Which of the choices below gives a true example of how a natural resource can be renewed?

Chemistry
1 answer:
noname [10]3 years ago
7 0
You didn't write the choices??
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Can someone help me please?
morpeh [17]

Answer:

metal ball that moves at high speed

Explanation:

4 0
3 years ago
What is the smallest particle of a covalent compound that has the properties of that compound?
Shtirlitz [24]
The smallest particle is the white blood cells because they are the ones that help you breathe
5 0
3 years ago
A gas has a volume of 490. mL at a temperature of -35.0 degrees C. What volume would the gas occupy at 42.0 degrees Celsius? Ple
miskamm [114]

Answer:

648.5 mL

Explanation:

Here we will assume that the pressure of the gas is constant, since it is not given or specified.

Therefore, we can use Charle's law, which states that:

"For an ideal gas kept at constant pressure, the volume of the gas is proportional to its absolute temperature"

Mathematically:

\frac{V}{T}=const.

where

V is the volume of the gas

T is its absolute temperature

The equation can be rewritten as

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where in this problem we have:

V_1=490 mL is the initial volume of the gas

T_1=-35.0^{\circ} + 273 = 238 K is the initial temperature

T_2=42.0^{\circ}+273=315 K is the final temperature

Solving for V2, we find the final volume of the gas:

V_2=\frac{V_1 T_2}{T_1}=\frac{(490)(315)}{238}=648.5 mL

8 0
4 years ago
How many moles are in 20 grams of Ar?​
pashok25 [27]

Answer:

moles Ar in 20g = 0.500 mole Ar

Explanation:

moles = grams given / formula weight = 20g / 39.948g·mol⁻¹ = 0.500 mole Ar

7 0
3 years ago
Why would methane attain a tetrahedral structure?​
lys-0071 [83]

<h2>HOPE THIS HELPS YOU ....</h2><h3>PLEASE MARK ME AS BRAINILIST...</h3>

3 0
3 years ago
Read 2 more answers
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