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luda_lava [24]
3 years ago
11

Which of these best describes heat transfer through conduction?

Chemistry
2 answers:
kozerog [31]3 years ago
4 0

I'd go for D here. It also fits in with the idea of thermal expansion - as something is heated up, molecules vibrate and maybe collide. they vibrate with bigger amplitudes, so taking up more space, so expanding. maybe



azamat3 years ago
4 0

Answer:

Heat transfer by molecules colliding with adjacent molecules.

Explanation:Heat transfer by molecules colliding with adjacent molecules. Conduction requires the transfer of energy from molecule to molecule.

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Calculate the molarity of 65.3 grams of sugar(342.3 g/mol), c12h22011 in 750 ml of solution.
k0ka [10]

Answer:

0.254 M

Explanation:

If the formula mass of sugar is 342.3 g/mol, and there are 65.3 g, then there are 65.3/342.3=0.190768 mol.

Also, 750 mL = 0.750 L.

molarity = (moles of solute)/(liters of solution)

molarity = 0.190768/0.750 = <u>0.254</u><u> </u><u>M</u>

8 0
1 year ago
Choose the element that IS NOT in the same period as Potassium.
Lesechka [4]
E. sodium is the answer

8 0
3 years ago
What is the cell potential for the reaction mg(s+fe2+(aq?mg2+(aq+fe(s at 77 ?c when [fe2+]= 3.40 m and [mg2+]= 0.210 m . express
Galina-37 [17]
First, you need to calculate the standard cell potential using standard reduction potential from a textbook or online. Since Mg becomes Mg+2, magnesium is being oxidized because it is losing electrons, you need to flip its potential

Fe+2 + 2e- --> Fe                  potential= -0.44
Mg+2 + 2e- --> Mg                potential= -2.37


Cell potential= (-0.44) + (+2.37)= 1.93 V

Now, you need to use Nernst formula to get the answer. I have attached a PDF with the work.
Download pdf
8 0
3 years ago
What does a tornado warning indicate
UNO [17]

Answer:

Tornado warnings indicate imminent danger to life and property.

Explanation:

A tornado has been in sight or will come.

4 0
3 years ago
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insens350 [35]

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