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Alex Ar [27]
3 years ago
6

A firework exploding is an example of a (4 points) physical change chemical change phase change nuclear change

Chemistry
1 answer:
Irina-Kira [14]3 years ago
5 0
A firework exploding is a chemical change as soon as you light the fuse the combustion reacts with the gunpowder.

I hope this helps, good luck!!!!
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Green light has a frequency of 6.01*10^14 Hz. What is the wavelength?
NemiM [27]
<span>λν = c

c= speed of light= 3.0x10^8 m/s
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8 0
3 years ago
Explain what would be the best observation when sodium chloride and sodium sulphate solutions are mixed​
docker41 [41]

Answer:

These two solutions react to form a white insoluble precipitate.

BaCl2​+Na2​SO4​→2NaCl+BaSO4​↓

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Explanation:

8 0
2 years ago
What are the nonmentals in group 16 of the periodic table?
Kitty [74]
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4 0
2 years ago
Calorimeter containing 1000 grans of water the initial temperature of water is 24.85 degrees . the heat of water is 4.184 j/g de
kvasek [131]
<h3><u>Answer;</u></h3>

10.80 ° C

<h3><u>Explanation;</u></h3>

From the information given;

Initial temperature of water =  24.85°C

Final temperature of water = 35.65°C

Mass of water = 1000 g

The specific heat of water ,c = 4.184 J/g °C.

The heat capacity of the calorimeter  = 695 J/ °C

Change in temperature ΔT = 35.65°C - 24.85°C

                                             = 10.80°C

3 0
3 years ago
If ice is warmed and becomes a liquid, which type of process is it?
ser-zykov [4K]
If ice is warmed and becomes a liquid, the process is endothermic.

The process requires heat in order to proceed. If ice stays in a very cold place, it will not melt unless it's heated. If ice is placed outside where it melts on its own, it gets the heat from the surroundings.
4 0
3 years ago
Read 2 more answers
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