CHEMISTRY MIDDLE SCHOOL

What are genes carbohydrates,lipids,porteins or nucleic

Answers

Answer 1
Answer:

Answer:

i think it is nucleic

Explanation:

because that is what i think

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explain the difference of valence electron behavior between ionic bonds and covalent bonds. Give an example of each type of bond using the three main groups from the periodic table.

Answers

Ionic bonds are typically weak, non-directional primary bonds between atoms, where one cation donates its valence electrons to one or more anions. They often occur between a metal and a non-metal such as table salt (NaCl). Materials made from ionic bonds tend to be more ductile than covalent ones but are still more brittle than metallic bonded ones.
Covalent bonding is a strong type of primary bond that is highly directional as the atoms share their valence electrons. This makes the material less ductile. An example of this is carbon-carbon bonds in diamond.

Which of the following descriptionsbest describes a solid substance?
A. The volume of the substance depends on the
container it is in.
B. Volume of the substance changes depending on its
location.
C. The shape of the substance changes often.
D. The shape of the substance is fixed and volume is
constant.

Answers

Answer:

D

Explanation:

depending on the solid the shape will not change.

How do machines transfer and convert energy

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Energy transformation or energy conversion is the process of changing one form of energy to another. In physics, the term energy describes the capacity to produce certain changes within a system, without regards to limitations in transformation imposed.

During a chemical reaction can only 1 substance be produced? Why or why not

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The chemical reaction produces a new substance with new and different physical and chemical properties. Matter is never destroyed or created in chemical reactions. The particles of one substance are rearranged to form a new substance. .

Describe two ways that thermal energy transfer in earth changes the land

Answers

There are three methods of thermal energy transfer: conduction, convection, and radiation. Air molecules that come into contact with the warmer land and surface of the oceans and lakes increase their thermal energy through conduction.

Combine the words volume and meniscus in one sentence.PLEASE HELP... need within 20 min.

THANKS!!!

Answers

To measure volume, measure the lowest part of the meniscus
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