Compound: ________________. Found In Apatite Soil, Contain Phosphorus (P) (2024)

Chemistry Middle School

Which observation shows that a substance is malleable?

O A. The substance can be stretched easily into wires.

O B. The substance flattens out when struck with a hammer

O C. The substance breaks apart when stretched.

O D. The substance shatters when struck with a hammer.

there's a total of five atoms

Which option is an example of a physical change?
iron rusting
metal denting
silver tarnishing
gasoline burning

please hurry!!!!!
Brainliest if right!​

Choose all the answers that apply.

Which of the following are physical properties?

flammability
hardness
magnetism
boiling point
density

Physical properties are boiling point, density, hardness,and magnetism.

Physical properties on your list would include hardness, magnetism, boiling point, and density.

Agree. This is true because you’re technically destroying atoms

PLEASE HELP ME!!
What happens at the borders of major tectonic plates?

Radioactivity is very high and large amounts of uranium are found.

Earthquake and volcanic activity is evident.

The edges of plates break apart due to the crushing that occurs.

The borders are calm and free of plate movement activity.

What can the student conclude about the experiments? (Attachment)
I WILL MAKE YOU BRAINLIEST

A. Experiments 1 and 2 show chemical changes because bubbles were produced.

B. Experiment 1 shows a physical change because no new substances were produced, and experiment 2 shows a chemical change because a new substance was produced.

C. Experiment 1 shows a chemical change because bubbles were produced, and experiment 2 shows a physical change because a liquid turned into a solid.

D. Experiments 1 and 2 show physical changes because no new substances were produced.

What type of energy transformation is happening?

a boy sliding his foot across the floor

A Electrical energy is created by friction when his foot slides across the floor.
B The mechanical energy of his foot moving across the floor is transformed into chemical energy.
C When his foot is sliding across the floor, it creates heat energy through friction.
D When his foot rubs against the floor, the energy of motion changes into light energy.

B Should be right :))

It’s B hope you get a good grade !!!! :)

Steps of Cellular Respiration:

___ Carbon dioxide molecules form.
___ Sugar molecules are broken down.
___ A flow of electrons produces chemical energy and water.

so the first one is sugar molecules are broken down then it's carbon dioxide molecules form then a flow of electrons produces chemical energy water

The answer goes 2,1,3

The correct answer is bounced

The movement of rocks and soil is an example of

erosion

weathering

deposition

2.

How does alternate freezing and thawing of water cause weathering to occur?

Freezing chemically alters the rock surfaces

Water expands when it freezes and cracks rocks open

Thawing causes rock particles to move from place to place

3.

How can you determine if a mountain valley has been created by a glacier?

It is V-shaped

It is U-shaped

It is irregularly shaped

I think that the answer is oxygen, oxygen plays a huge role in the evolution of organisms.

Oxygen. You need it to survive.

Sugar, C6H12O6, is made of carbon, hydrogen, and oxygen atoms. Sugar is — (I WILL MAKE U BRAINLIEST

A. a compound because it is made of two or more atoms chemically combined and its parts cannot be separated by physical means

B. a mixture because it is made of different kinds of atoms but they are not chemically combined

C. a solution because it dissolves when mixed with water

D.an element because it is a pure substance whose parts cannot be separated

why wouldn’t that make a difference, hola mi, polo el coron

the get the carbon dioxide they need for photosynthesis from the composition of CO2 in the air

Which shows the correct order of steps in the formation of coal?

Layers of dead plants pile up → plant matter is buried by rocks and dirt → dead plants fall in swamp → plant matter is compressed and is exposed to heat → coal forms
Plant matter is compressed and is exposed to heat → dead plants fall in swamp → layers of dead plants pile up → plant matter is buried by rocks and dirt → coal forms
Plant matter is buried by rocks and dirt → dead plants fall in swamp → layers of dead plants pile up → plant matter is compressed and is exposed to heat → coal forms
Dead plants fall in swamp → layers of dead plants pile up → plant matter is buried by rocks and dirt → plant matter is compressed and is exposed to heat → coal forms
I WILL GIVE BRAINLIEST TO BEST ANSWER PLEASE HURRY

The answer to it is T

chemical reactions cannot be reversed and are visible

Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

How do you enter the density into the calculator?

A. volume (cm3) / mass (g) =
B.mass (cm3) / volume (g) =
C.mass (g) / volume (cm3) =
D.mass (g) X volume (cm3) =

Mass (cm3)/Volume (g)

Pls help this is due in 5 mins!!!! Brainlest to the best answer and 20 points

Every Cell in the body requires oxygen for respiration so that sufficient energy can be produced. Carbon dioxide, a waste product, is also produced and needs to be removed.
Therefore, the levels of both gases must be regulated. How does this explain the changes in our pulse rates

Which shows the correct order of steps when using natural gas to generate electricity?

Energy is converted → gas is burned → boiling water makes steam → steam turns turbines
Gas is burned → boiling water makes steam → steam turns turbines → energy is converted
Boiling water makes steam → steam turns turbines → energy is converted → gas is burned
Steam turns turbines → gas is burned → energy is converted → boiling water makes steam i will give brainliest

The second answer o think

Carbon monoxide is the compound found in air that contains carbon and oxygen

most of them explode is the answer to that question

one or more substances are converted to a different substance. an example could be ( iron + oxygen = rust

Which of the following represents two molecules of carbon dioxide?

C 2O 2
CO 2
2C 2O 2
2CO 2

The answer is most likely B

In two or more complete sentences explain how to balance the chemical equation,

Ca + N2 ⟶ Ca3 + N2 and include all steps.