CHEMISTRY MIDDLE SCHOOL

An ionic compound is formed whenA a metal bonds with another metal
B a nonmetal bonds with another nonmetal
C a metal bonds with a nonmetal
D three nonmetals bond together

Answers

Answer 1
Answer: metal bonds with nonmetal
Answer 2
Answer: well, ionic compounds are formed when positive and negative ions are formed so i would say A.

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What does the atomic numbrr represent on the periodic table?​

Answers

Answer:

Explanation:

The atomic number tell us the number of protons and neutrons in the nucleus of an atom. in other words ,each element has a unique number that identifies how many protons are in one atom of that element example, all hydrogen atoms, and only hydrogen atoms, contain one proton and have an atomic number of 1.

What would be an example of a land form from magma?A.Hot springs
B.Lava Plateau
C.Dome Mountains
D.Shield Mountains

Answers

An example of a land form from magma is B. Lava Plateau.

10 compounds that use the following elements

Answers

Sodium Hydroxide: NaHO

Calcium Chloride: CaCl2

Methane: CH4

Ethanol: C2H5OH

Calcium Sulfate: CaSO4

Calcium Nitrate: Ca(NO3)2

Carbon Monoxide: CO

Ammonia: NH3

Water: H2O

Carbon Dioxide: CO2

What is the name of the body part that passes messagesfrom the sensory neurons to the brain?
o Lungs
O Nerve Cells
o Brain
o Stimulus please help me thanks

Answers

The answer would be nerve cells. Hope that helps you!

What is special about nitrogen,and what is its main function in the atmosphere

Answers

the important thing about Nitrogen is that it provides air for humans to breathe in, 78% of the air we breathe in is Nitrogen and only 21% is oxygen, 1% is other gases. If the air was pure oxygen then everything would be extremely flammable, and it would also be harmful to humans. Nitrogen plays a very important role in our lives. Oxygen can be poisonous if it was the only gas in the air... we would initially all die if nitrogen wasn't in our atmosphere  

What are the three forms of water and what are the scientific names when they change into each other

Answers

solid liquid and gas

when it changes from a:
solid
  to a
     liquid: melting, fusion
     gas: sublimation
liquid
   to a
       solid:freezing
       gas:vaporization
gas
   to a
       solid:condensation, deposition
       liquid: condensation, liquefacation
gas liquid and solid   gas is when the water evaporates.  liquid when thew water is at room temp and solid when it is cooled below 32 degrees farenheit 
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