Chemistry Middle School

HELP PLS THIS IS DUE IN 15 MINUTES PLS PLS PLS!!! I WILL MARK BRAINLIEST IWTH THE BEST ANSWER!!!
List 2 Physical Changes & 2 Chemical Changes and explain why.

Answers

Answer 1

Answer:

A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding.

Explanation:

Answer 2

Answer:

A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity.

physical changes are boiling, melting, freezing, and shredding.

Explanation:

Related Questions

Help asap plz! Actual answers plz!

Describe an example of an action and reaction. Identify the forces and their directions.

Answers

Answer:

An example of action is there is a fire and reaction is you running

Explanation:

A example of an action is that she left in a hurry and a reaction iron and oxygen combining to make rust

What is the largest contributor to the greenhouse effect?

Answers

Answer:

burning of fossil fuels

Explanation:

Science
The theory of continental drift states that the land masses called continents were once closer together and have drifted apart over time. Which circumstance is the strongest evidence in support of this theory?
Select one:

the periodic climate changes of Earth

the migration patterns of birds

the large variety of animals on each continent

the similarity of fossils on different continents

Answers

Answer:

D or the fourth choice.

Explanation:

4 the similarity of fossils on different continents. I hope this helps you.

Which biome has the greatest biodiversity, and why?
MY TEACHER ASKED ME THIS AND WE HAVEN'T EVEN LEARNED ABT THIS!!! PLS HELP I WON'T ACCEPT FAKE ANSWERS I WILL FLAG THEM AS FAKE :

Answers

rainforest as I contains, caves, caverns, semi-tropical, subtropical, and temperate areas.
rainforest have the greatest biodiversity because they are abundant in nutrients and energy.

How do matter and energy move through an ecosystem?

My scientific explanation is:

Your answer should include at least 1-2 complete sentences to explain the claim, evidence and reasoning.
Be sure to check your grammar and spelling.
Use the Sentence Starter to help you:

Matter and energy move through an ecosystem by...

Answers

Answer:

Decomposers (organisms that break down dead producers and consumers and organic waste) obtain the energy they need to live from chemical bonds of the dead and waste-matter. The energy is transferred both to the decomposer (for growth and development) and to the ecosystem (as heat energy)

Explanation:

Yea he’s right he got the answer

What is an important characteristic for chemicals released into the environment used to seed clouds?

Answers

Answer:

the rain

Explanation:

WILL GIVE BRAINLIEST! What greenhouse gas most controls the temperature? And when is it released?

Answers

Answer:

1: carbon dioxide

2: As hydrocarbon fuels (i.e. wood, coal, natural gas, petrol and oil) are burnt, carbon dioxide is released. During combustion or burning, fossil fuel carbon mixes with oxygen in the air to create carbon dioxide and water vapor.

Explanation: hope it helps

Choose all the answers that apply.

The sun _____.

a. creates energy from fission reactions
b. creates energy through fusion reactions
c. transfers heat through radiation
d. is made of hydrogen and helium
e. uses its own mass to create energy

Answers

B:Creates energy through fusion reactions
b it creates energy through fusion reactions and d
Other Questions
what is the median for 9, 1, 9, 6, 5 and for 2, 10, 7, 1 What is the value of f(4)?f(4)=_______ 6 (6 + 7) = show work Point P(-5.15, -7.05) is a reflection across the x-axis of which of the following points?(-5.15, 7.05)(-7.05, -5.15)(5.15. -7.05)(7.05.5.15) plz help i need the answer quick Which equation is the result of solving y-p=m(x-q) for x ? Between 1820 and 1850, some Americans discriminated against German immigrants because theyA. were protestantB. did not speak englishC. were hired as skilled workers D. wanted to become farmers((please help quickly ;-; I'm doing a final and it's being timed I thought my neighbours were lovely people. Then they went and put a password on their wi-fi. $2.99 toy ; 30% discount Which situation represents a proportional relationship? WWI emerged from "oldagreements" betweenvarious European Nationstrue or false 18 POINTS AND BRAINLIEST A system of equations is shown.What is the value of x in the solution to the system?4x + 2y = 102x - 2y = 8 3. What is the value of x?x = 41x = 43x = 47x = 135 in the debate over the ratification of the U.S. Constitution, which point would have been made by a Federalist? Hello pls answer i reposted cus it flopped The volume of this pyramid is 351 m3. If the area of thebase is 81 m how high is the pyramid? Three salesmen work for the same company, selling the same product. And, although they are all paid on a weekly basis, each salesman earns his paycheck differently. Salesman A works strictly on commission. He earns $65 per sale, with a maximum weekly commission of $1,300. Salesman B earns a weekly base salary of $300, plus a commission of $40 per sale. There are no limits on the amount of commission he can earn. Salesman C does not earn any commission. His weekly salary is $900.If Salesman A has exactly sales, he will reach his maximum weekly commission. how did medieval people view and respond to the black death? #3-60 Simplify the following expressions. Which expressions have a value of 128 when x=4?