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OLga [1]
3 years ago
11

Which process is an example of a chemical change?

Chemistry
2 answers:
Alinara [238K]3 years ago
6 0

Answer:

d- activating a glow stick

Explanation:

Glow sticks produce light through a chemical reaction.

Ilia_Sergeevich [38]3 years ago
5 0

Answer:

burning of paper

melting of lead

You might be interested in
Why does the water turn blue after some time when blue ink is dropped in water? Which property
zepelin [54]

Answer:

Particles are constatantly moving and diffusing

This is possible because of diffusion

Explanation:

Hope this helps

7 0
3 years ago
Which of these limiting factors is MOST likely to affect low-growing plants in a tropical forest? Group of answer choices air wa
Georgia [21]

Answer:

air, water, sunlight

Explanation:

A limiting factor may be defined as a environmental condition or a resource that can limit the plant growth as well as distribution or the abundance of an organism or its population within the ecosystem. The ability  of any plant species to grow and spread throughout any geographic area is the direct result of the adaption to its biotic  and abiotic components of that region.

Some of the factor that affect the plant growth are : sunlight, air, proper temperature, moisture, nutrients, wind,etc.

The lack of the any one of the above essential component will determine the health of the  plant.

8 0
4 years ago
Question 1 (1 point)
Dima020 [189]

Answer:

1. Both are made up of two substances that are chemically combined.                   2. oxygen(O2) , 3. CARBON (C) , 4. AIR(N2 nixed with O2 AND CO2), 5. CANNOT BE SEPARATED BY PHYSICAL MEANS

Explanation:

<em>HOPE IT HELPS</em>

4 0
3 years ago
A chemist takes 50-gram sample of sulfur powder that has a melting point of 115.2 °C. What is the melting point of a 100-gram sa
Viktor [21]

Answer:

115.2 °C since melting point is an intensive property  

Step-by-step explanation:

The melting point of a substance does not depend on how much you have.

For example, the melting point of water is 0 °C, whether it is an ice cube from the refrigerator or in the frozen pond outside.

The freezing point of a substance is an <em>intensive property</em>.

Thus, the melting point of 100 g of sulfur is 115.2 °C because melting point in an intensive property.

7 0
3 years ago
HELP ME PRETTY PLEASE FAST FOR BRAINLIEST
Mumz [18]

Answer:

M is increased loudness

O is decreased loudness

N is decreased pitch

P is increased pitch

Louder soundwaves ten to have longer and deeper waves visa versa.

Increased pitch tends to have shorter soundwaves. visa versa

8 0
3 years ago
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