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HACTEHA [7]
3 years ago
15

An _________ change occurs when a material changes shape or size but the composition of the material does not change.

Physics
1 answer:
coldgirl [10]3 years ago
3 0
A chemical change. chemical changes could cause changes in shapes or sizes
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You take a trip that covers 240 kilometers and takes 4 hours. Your average speed is
Lorico [155]

Answer:

Your average speed is 60 kilometers per hour

Explanation:

240 divided by 4 is 60

240/4=60

7 0
3 years ago
How Many Negative (-) Electrons are there
makvit [3.9K]

Answer:

All electrons are negative(-) charged

5 0
3 years ago
Select the correct answer.
Natali5045456 [20]

(NH4)2CO3(s) ⇄ 2NH3(g) + CO2(g) + H2O (g)

The  effect  that adding  water (H2O)   have in reaction above is  that The  concentration of the product  would  decrease, and the concentration of reactant  would increase. (answer  C)


   <u><em>Explanation</em></u>

  •  If the  concentration   of one substance is changed, the equilibrium  shift to minimize  the effect of that change.
  • H2O   in reaction above  is  a product.

  • Increase of water (H2O)  concentration will led to the shift of equilibrium  to the left ( reactant  side)  .The concentration of  reactant  increase  as that of product decrease.
6 0
3 years ago
Who pioneered the use of galvanoplastic compounds for preserving footprints and ballistics?
alukav5142 [94]

Answer:

Option D (Alphonse Bertillon) is the correct response.

Explanation:

  • He seems to have been a policeman turned biometrics expert from France. Forensic techniques such as forensic record analysis were developed by Bertillon.
  • To retain proof, he always pioneered or developed the use of such galvanoplastic compounds as molds for footsteps as well as ballistics. To research physical changes with age, Bertillon has developed a method focused on images of almost the same person’s performance.

All those other choices weren’t connected to the instance offered. So, the best one is the one described.

5 0
3 years ago
Read 2 more answers
A meterologist made these observations one day:
Vinvika [58]

Answer:

They transfered more energy in the morning.

Explanation:

This is because, let me put this in simple words, you have more energy, you can run more laps around the track, right? This is the same with  the waves. They have more energy, so they can crash aganst the shore more!

3 0
3 years ago
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