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Ksju [112]
3 years ago
13

What are some physical properties that could have helped to identify a mystery powder?

Chemistry
1 answer:
Rus_ich [418]3 years ago
6 0

i dont really know i will find some more information on that in about 5 minutes

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If i have a 50 L container that holds 45 moles of gas at a temperature of 473 K, what is the pressure inside the container?
Furkat [3]

Answer:

The pressure inside the container is 34.97 atm

Explanation:

Given:

V=50L R= 0.0821LatmK^-1mol^-1

n= 45mol T= 473k

PV=nRT

P= nRT/V

= 45mol*0.0821Latmmol^-1K^-1*473K/ 50L

=34.95atm

6 0
3 years ago
Please help me with number 4
quester [9]

Answer:

Similar propoties is the answer

6 0
2 years ago
At what temperature is water at its greatest density​
ahrayia [7]

Answer:

3.98^oC

Explanation:

We usually approximate the density of water to about 1000 kg/m^3 at room temperature. In terms of the precise density of water, this is not the case, however, as density is temperature-dependent.

The density of water decreases with an increase in temperature after the peak point of its density. The same trend might be spotted if the temperature of water is decreased from the peak point.

This peak point at which the density of water has the greatest value is usually approximated to about 4^oC. For your information, I'm attaching the graph illustrating the function of the density of water against temperature where you could clearly indicate the maximum point.

To a higher precision, the density of water has a maximum value at 3.98^oC, and the density at this point is exactly 1000 kg/m^3.

6 0
3 years ago
Read 2 more answers
Which property is true for metals
san4es73 [151]

most metals conduct electricity and are very dull to the look. most metals are toxic if eaten and are hard.

aluminum is a type of metal they is softer than the opther and conducts eletricty like a boss.

nickel on the opther hand is also a metal but does not conduct a lot of electricy.

metals can be bent and others can break,

6 0
3 years ago
Read 2 more answers
Rutherfordium has atomic number of 84 how many protons and electrons does it have
valentina_108 [34]

84   protons and 84 electrons.

5 0
3 years ago
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