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marysya [2.9K]
3 years ago
15

What are cells and how are they important to maintaining life?

Chemistry
1 answer:
devlian [24]3 years ago
3 0

Answer:

Cells are the "building blocks for all living things." Without cells, we couldn't survive. Cells do many important things. Some of the things they can do are taking in food nutrients, frame our bodies, and change the food nutrients into energy.

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A student with a body temperature of 37°C holds a piece of ice that has a temperature of –8°C.
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Answer:

B

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Predict what would happen if plants disappear?
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All secondary consumers will die because they will lose their food source

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2 years ago
In the writing of ionic chemical formulas, what factor is "crossed over" in the crossover rule?
Levart [38]

Ionic compounds are formed by the complete transfer of electrons between the atoms.  The atom which gains electron(s) forms anion whereas loss of electron(s) results in the formation of cation.  They are bonded to each other by electrostatic force of attraction between the negatively and positively charged atoms.


While writing the ionic chemical formula for binary ionic compound the rules are:

  • Writing the chemical symbol of the metals and non-metals involved in the compound formation.
  • The charge i.e. the absolute value of oxidation number of each metal is written on respective atoms.
  • The charge i.e. the absolute value of oxidation number are cross-multiplied that is the charge of first ion becomes the subscript of second ion and vice versa.

Hence, in the writing of ionic chemical formulas, the value of each ion's charge is "crossed over" in the crossover rule.

5 0
3 years ago
Chemicals that cause cancer or called
Tpy6a [65]
They are called carcinogens
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3 years ago
Boiling occurs when molecules being changed from liquid to gas plz tell me the answer true or false
Valentin [98]

Answer:

Liquid to Gas

Explanation:

The particles need energy to rise and over come the attractions between them as the liquid gets warmer more particles have sufficient, energy to escape from liquid. eventually even particles in the middle of the liquid form bubbles of gas in the liquid At this point the liquid is boiliing and turning into gas.

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