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Inessa [10]
2 years ago
5

Can anyone help me if possible?

Chemistry
1 answer:
Studentka2010 [4]2 years ago
6 0
Well since I can't sketch anything up on this app no but it is very simple ask a family member to help sketch it out it won't be hard
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Which has more mass: an armful of feathers or an armful of lead? which has more volume: a kilogram of feathers or a kilogram of
valina [46]
Mass is related to weight. It measures the resistance of the substance to acceleration when a net force is applied.
Therefore: armful of lead has more mass

volume measures the amount of 3-dimensional space that an object occupies.
Therefore: kilogram of feather has more volume as it is less dense.

density is the mass per unit volume. Since armful of lead has more mass than a handful of feathers, while kilogram of feather has more volume than a kilogram of lead.
Therefore: kilogram of lead has higher density.
8 0
3 years ago
What is the volume, in liters, of 0.500 mol of c3h8 gas at stp? (hint..use avogadro’s principle to solve this)?
wolverine [178]
When we are at STP conditions, we can use this conversion: 1 mol= 22.4 L

0.500 mol C₃H₈ (22.4 L/ 1 mol)= 11.2 L
3 0
3 years ago
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Why do the inner walls of a vacuum flask have a silver coating?
Citrus2011 [14]

<u>Answer</u>:

The inner walls of a vacuum flask have a silver coating to reduce heat loss by radiation.

<u>Explanation</u>:

The vacuum flask has an inner silver lining to prevent the transfer of  heat by radiation. Radiation is a process where the emission or transformation of energy happens in the form of wave or the  particles through the material medium.

Vacuum flask being working as thermal insulator helps in maintaining the substance its actual temperature for a long time. The silver lining acts as a reflector .It  prevents the heat radiation to released out of the flask.  

5 0
3 years ago
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If you move 60 meter in 10 seconds, what is your speed
Taya2010 [7]

the answer was S=d/t = 60/10 = 6m/s, I'm sorry for getting it wrong the first time I answered ^^

5 0
2 years ago
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Marcela dissolves 80.0 g of ammonium nitrate in 50.0 mL of water at room temperature and notes that the temperature of the solut
seraphim [82]

Answer: The correct answer is A

Explanation:

On addition of the ammonium nitrate to 50 ml of water the temperature decreases which means that reaction between the ammonium nitrate and water is an endothermic reaction.The value of \Delta H is positive for an endothermic reactions.

\Delta H>0

Entropy is a degree of randomness of the system.

On addition of the ammonium nitrate to water ammonium nitrate break down into ions which means that entropy is increased.

\Delta S>0

\Delta G=\Delta H-T\Delta S (Gibb's free energy)

Since, ammonium nitrate is getting dissolved in water which means that this reaction is spontaneous and \Delta G of spontaneous reaction is negative that is:

\Delta G

4 0
3 years ago
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