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agasfer [191]
3 years ago
12

What are the uses of zinc

Chemistry
2 answers:
Katarina [22]3 years ago
5 0
Zinc is also used in alloys such as brass, nickel silver and aluminium solder. Zinc oxide is widely used in the manufacture of very many products such as paints, rubber, cosmetics, pharmaceuticals, plastics, inks, soaps, batteries, textiles and electrical equipment.
Travka [436]3 years ago
5 0
One is for making little shacks
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raketka [301]

Answer:

C  

6

​  

H  

14

​  

 

Explanation:

5 0
2 years ago
A balloon filled with air has a volume of 4.24 liters at 23.00°c. if the balloon is cooled at constant pressure to 5.00°c, what
UkoKoshka [18]

The new volume if the balloon is cooled at constant pressure is  3.98 L.

Charles's law, states that the volume occupied by a fixed amount of gas is directly proportional to its absolute temperature if the pressure remains constant.

The new  volume is calculated using the Charles law formula

                                 V₁ / T₁  = V₂ / T₂

where,

V₁ = The initial volume of air = 4.24 l

T₁ = 23.00 °C into kelvin = 23  +273 =296 K

T₂ = 5.00 °C into kelvin = 5.00 + 273 = 278 K

V₂ = ?

By making  V₂ subject the subject of the formula  by multiplying both sides by T₂

V₂ = ( V₁  × T₂ ) / T₁

V₂ =  (4.24 L  ×  278 K)  / 296 k  

   = 3.98 L

Therefore, the new volume, if the balloon is cooled at constant pressure, is  3.98 L.

An air-filled balloon will contract when chilled and expand when heated. This occurs because the gas that makes up the air within the balloon expands when it is warm and contracts when it is cool.

Learn more about Charles law here:

brainly.com/question/14842720

#SPJ4

7 0
1 year ago
HELPPP! How is a gas different from a solid or a liquid?
Korolek [52]
A gas has more free molecules, and it is air, not a tangible substance. Hope it helps! :)
6 0
3 years ago
Read 2 more answers
0.249 g of a common diatomic gas occupies a volume of 250. ml at 120°c and 760 mmhg. using a periodic table, what is the identit
sergij07 [2.7K]
The answer is to google it
3 0
3 years ago
A grapefruit has a weight on earth of 4.9 newtons. what is grapefruit's mass
Kobotan [32]
The force of gravity is the force with which massively large objects such as the earth attracts another object towards itself. All objects of the earth exert a gravity that is directed towards the center of the earth. Therefore, the force of gravity of the earth is equal to the mass of the object times acceleration due to gravity.   

<span>F = ma </span>
<span>4.9N = m (9.8 m/s^2), note that N (newtons) = kg-m/s^2 </span>
m = 0.5 kg 
<span>The mass of the object is 0.5kg.</span>
7 0
3 years ago
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