LOTS OF POINTS!!!!!!!! What is a Physical and Chemical Reaction?

Answers

Answer 1

Answer:

See explanation.

Explanation:

In a chemical reaction, the substances change. Put hydrogen and oxygen together and the chemical reaction results in water.

A physical reaction there is a change in form, but the chemical composition remains the same. Take water below freezing, and ice forms - a physical reaction.

Answer 2

Answer:

Answer:

Explanation:

In a chemical reaction, the substances change all together and there is no going back you cant take them apart.

A physical reaction there is a changes, but the chemical composition dosnt. this one you can go back from it becuse the chemical reaction didnt change.

Related Questions

Biology and geology are two different sciences ,but biologists and geologists are scientific knowledge in the same way.these scientists both use scientific knowledge to?
2.Patsy is studying different kinds of weathering. She has four pans full of dried modeling clay. Some she adds water to. Some she freezes overnight, then lets thaw, as summarized in the table below: PanAdded Water?Froze the pan?1yesyes2yesno3noyes4nono Then she compares the clay in all four of her pans. The clay in pan #4 was the same at the end of the experiment as it has been at the beginning. The clay in pan #1 had changed and broken up more than the others. Which of the following conclusions could Patsy have made? Frozen clay takes up more space than thawed clay does. Adding water to clay and then freezing it breaks the clay apart more than either freezing it or adding water to it alone. Adding water to clay and then freezing it helps plants to grow in the clay more than either freezing it or adding water to it alone. Wet clay takes up more space than dry clay does.
Which explains how the Great Lakes cause excess snow on the eastern edges during the winters? A. As the winds blow west over the lakes, they release heat and moisture from the lakes, thereby cooling and dropping snow on the eastern shores. B. As the winds blow west over the lakes, they warm, thereby leaving the cooler air mass to drop snow on the eastern shores. C. As the winds blow east over the lakes, they cool and drop snow on the eastern shores. D. As the winds blow east over the lakes, they pick up heat and moisture from the lakes. When they reach land, they cool and drop snow on the eastern shores.
The base of the pyramid is built from organisms that are primarily
3. Why is relying on a short list of major food crops a concern?

Can bacteria undergo mitosis? Why or why not?

Answers

Answer:No

Explanation:

They do not have a nuclear membrane surrounding their cellular DNA

Answer:

Prokaryotes, such as bacteria, do not have a nuclear membrane surrounding their cellular DNA, so cell division is happens differently than in eukaryotes. Even though the cell does not undergo mitosis, the end result is the same.

How does earth's atmosphere support life? ?and I want to know my
answer is correct or no and why?

Ans : 1) earth atmosphere contains nitrogen and oxygen which is necessary in our life .

2) it contains gases that insulate earth.

3) it has ozone layer that protect earth from ultraviolet radiation which can damage genetic organisms. .

Answers

I believe that the answer would be either 1: earth atmosphere contains nitrogen and oxygen which is necessary in our life. 2: it has the ozone layer that protect earth from ultraviolet radiation which can damage genetic organisms.

HHELLPP PLEASE
BIG DDOUDT

Answers

Answer:

I can help but

Explanation:

Can you also show the options in the picture?

The correct answer will be option D. Owl. Among the given animals, only the owl has both eyes in front of its face and it comes under the category "Animals that only eat other animals".

In this problem, Joy had first created a list of animals who had " EYES IN FRONT " of their face. From the given options, owls have eyes in front of their face and thus can be included in the list. The other animals, like pigeons, deer and sharks, have eyes on the sides of their face.

Owls are carnivores, meaning they eat mostly meat from other animals. They are not known for their great predatory skills and prefer to chase smaller animals, as they have difficulty catching and killing larger prey. These nocturnal raptors are only occasional omnivores.

Learn more about carnivores here:

brainly.com/question/1214500

Please help ill mark brainly thingyWhich of the following is NOT an example of a constructive interference of light?

a)Car headlights shining down the highway at night.

b)Taking a photo of someone with the sun behind them

c)Shining two flashlights in the same direction

D)Stage lights shining on the actors.

Answers

Answer:

Explanation:

Please help me!!!A boater is floating 1060 meters down a river. The person takes 40 minutes. At what speed is the boat moving?

Answers

theAnswer is :

it is moving at 26.5 mph

Explanation

26.5 meters per minute

The Gulf Stream is characterized by warm, high-salinity water that moves very rapidly in an ocean surface current. True
False

Answers

I believe the answer is true plz mark brainliest if correct

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