All categories

3 years ago

What is the definition of physical and chemical changes?

2 answers:

6 0

Physical change, a change that occurs physically, and can also be seen physically. But chemically, it's a change that occurs within the chemical, and most likely not be seen within the eyes, but, has a different charater afterward.

BaLLatris [955]3 years ago

3 0

A physical change in a substance doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed. For example, if a piece of paper is cut up into small pieces it still is paper.

You might be interested in

Give the n and l values and the number of orbitals for sublevel 5g.

Pepsi [2]

The n and l values and the number of orbitals for sublevel 5g is :

5g shell , n= 5 subshell g , l = 4, Number of orbitals for sublevel = 9.

There are total four quantum numbers:

1) Principal quantum number , n

2) Angular quantum number , l

3) Magnetic quantum number , ml

4) spin quantum number , ms

For 5g shell, n = 5

subshell g , l = 4 ....0 - s , 1 - p , 2 - d, 3 - f, 4 -g

number of orbitals in subshell = (2l + 1) ( 2×4 + 1) = 9

Thus, The n and l values and the number of orbitals for sublevel 5g is :

5g shell , n= 5 subshell g , l = 4, Number of orbitals for sublevel = 9.

To learn more about quantum numbers here

brainly.com/question/14650894

#SPJ1

6 0

1 year ago

Are producers heterotrophs or autotrophs?

cupoosta [38]

Answer:

Autotrophs

Explanation:

Autotrophs make their own food, or produce food for themselves through the process of photosynthesis. Therefore, we can say that autotrophs are also producers. Some examples of producers are plants, algae, and some types of bacteria.

7 0

3 years ago

Some animals have an organ called the gizzard. The gizzard is muscular and helps to crush up hard food. Earthworms and many bird

fiasKO [112]

The gizzard body part is apart of the gastrointestinal system

5 0

3 years ago

Where does a wolf get energy from?

Setler79 [48]

Answer:

Check Explanation

Explanation:

In this case the Mushroom would get energy from decomposing dead plants and animals in the soil/ground

The plant would get energy from the sun (simplified)

the rabbit would get energy from eating the plant

in this case the wolf would energy from eating the rabbit but in a normal setting the wolf could get energy from eating any animal

4 0

3 years ago

Read 2 more answers

Why is it easy for archaeologists to find campsites of early explorer of over 200 years ago?

Ivenika [448]

Here's a website with the answer and some cool reading:
http://history-world.org/archeology.htm

5 0

3 years ago