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Scilla [17]
2 years ago
14

Help ASAP! WILL MARK BRAINLIEST! What must happen for light to change a material?

Chemistry
2 answers:
kirill [66]2 years ago
8 0

Answer: change in speed

Explanation: the change in speed causes light Ray's to change direction. This directional change is called refraction.

never [62]2 years ago
7 0

Answer:

There should be the refraction for light to change a material.

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Help me with this attachment please​
Anna007 [38]

Answer:

See explanation

Explanation:

Let us recall that the basic rule in writing balanced chemical reaction equations is that the number of atoms of each element on the right hand side of the reaction equation is the same of the number of atoms of the same element on the left hand side of the reaction equation.

The reaction of red hot iron and steam is written as follows;

3Fe + 4H2O → Fe3O4 + 4H2.

The decomposition reaction of ammonium dichromate is written as;

(NH4)2Cr2O7 → N2 + Cr2O3 + 4H2O

Reaction of aluminium, sodium hydroxide and water is as follows,

2Al + 2NaOH + 2H2O ----> 2NaAlO2 + 3H2

Reaction of potassium bicarbonate with sulphuric acid;

2KHCO3 + H2SO4 -------> K2SO4 + 2H2O + 2CO2

Reaction of zinc and sodium hydroxide is as follows;

Zn + 2NaOH→Na2ZnO2 + H2

5 0
3 years ago
The swallowtail caterpillar is an example of a ?
tresset_1 [31]

Answer:

B)  Consumer COnsumer COnsumer

8 0
2 years ago
Every spring has an equilibrium position. Which statements describe a spring at its equilibrium position? Check all that apply.
rjkz [21]

The statements describe a spring at its equilibrium position is the elastic potential energy is zero, the displacement of the spring is at a maximum and the net force acting on the spring is zero.

<h3>What is the equilibrium position?</h3>

A body is in equilibrium when the sum of all forces acting on it equals zero. According to Newton's First Law, when resulting from the laws that act on a body that remains in a state of restriction or in motion in its motion, it remains uniformly null.

In this case the only statements that match the definition of equilibrium position are:

  • The elastic potential energy is zero.
  • The displacement of the spring is at a maximum.
  • The net force acting on the spring is zero.

See more about equilibrium position at brainly.com/question/10374921

#SPJ1

8 0
1 year ago
What is the density of a mineral with a mass of 41.2 g and a volume 8.2 cm3?
dezoksy [38]
Hey there!:

mass = 41.2 g

Volume = 8.2 cm³

Therefore:

D = m / V

D = 41.2 / 8.2

D = 5.02 g/cm³
4 0
3 years ago
Read 2 more answers
How does the skin help regulate body temperature?<br><br><br> HELP FAST
Gnom [1K]

Answer:

1. The body's immense blood supply (when blood vessels dilate or become larger heat loss occurs) When the blood vessels constrict it holds in heat

2. The skins blood supply also helps maintain body temperature (helps maintain homeostasis which is the "normal" state of our body)

3. Humidity in the air effects thermoregulation (heat regulation in the body) by limiting sweat evaporation (usually sweat evaporates into the environment when the humidity is low because the air has low "water levels" per say while you have high "water levels" because of your sweat

7 0
3 years ago
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