CHEMISTRY MIDDLE SCHOOL

Which of these processes take place at the same temperature?freezing and condensation
melting and sublimation
condensation and vaporization
sublimation and boiling

Answers

Answer 1
Answer:

Answer:

Condensation and vaporization  

Explanation:

At a given temperature, molecules of a liquid move into the gas phase (vaporization) and the molecules of the vapour can move back into the liquid phase (condensation).
Answer 2
Answer:

Answer:

condensation and vaporization

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The body is a system of interacting subsystems composed of a group of specialized cells and tissues because....Can someone help fill in the rest? Thanks

Answers

In multicellular organisms, the body is a system of multiple interacting subsystems. These subsystems are groups of cells that work together to form tissues and organs that are specialized for particular body functions.

Hope This Helps!  Have A Nice Day!

Final answer:

The human body is a system of interacting subsystems composed of specialized cells and tissues, each performing a specific function. These subsystems, such as the circulatory and digestive systems, cooperate to maintain overall health and homeostasis.

Explanation:

The body is a system of interacting subsystems composed of a group of specialized cells and tissues. This is because each subsystem or organ system consists of particular types of cells and tissues that carry out specific functions. For instance, the circulatory system, made up of the heart, blood vessels, and blood cells, transports nutrients and oxygen throughout the body. The digestive system, including the stomach, small and large intestines, and other components, breaks down food and absorbs nutrients. These subsystems interact with each other to maintain the body's overall homeostasis and good health.

Learn more about Interacting Subsystems in the Body here:

brainly.com/question/33902341

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A sample of metal has a mass of 16.63 g, and a volume of 7.94 mL. What is the density of this metal?

Answers

Answer:

The density of the metal is 2.094 g/mL.

Explanation :

Given,

mass of metal sample = 16.63 grams

Volume = 7.94 mL.

Density = ?

Density of the metal can be found by using the formula

Density = Mass/Volume

Substituting the values we get,

density = 16.63/7.94

by solving,

density = 2.094 g/mL.

I don’t get it? haha

Answers

Hello,

A molecule is

a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

I hope this helps

PLEASE PLEASE HELP WITH THESE QUESTIONS PLEASE!!!!!!!!Is this statement true or false?

Living things are classified by the characteristics they have in common.
______________________________________________________________________________
There are seven major levels of classification. Kingdom and Phylum are just two of the levels. Which of the following are also major levels of classification?

Choose all answers that are correct.


A.
Class

B.
Order

C.
Family

D.
Level
______________________________________________________________________________
Which of the following are also major levels of classification?

Choose all answers that are correct.

A.
Genus

B.
Species

C.
Group
HELP

Answers

I learned this in grade 7 and we had to study an animal . The most important is genus, species, order, and family. I believe this is the answer but I am not 100% sure. Good Luck :D
Really all are important, but this should help.It goes,DOMAINKINGDOMPHYLUMCLASSORDERFAMILYGENUSSPECIESA good way to remember this is by thinking,DidKingPhilipCameOverForGoodSpeghettiHope this helps.

Which property is typical of a covalent compound?A. They are extremely hard solids.B. They have low melting and boiling points.C. They conduct electricity.D. They have rigid crystal structures.E. They exist only as gases and liquids.

Answers

Answer:  Option (B) is the correct answer.

Explanation:

A covalent compound is a compound whose atoms are bonded together by sharing of electrons.  

Also it is known that in covalent compounds weak inter molecular forces of attraction exists. Due to which it is easy to break the bond between atoms.

Hence, covalent compounds have low melting and boiling point .

Other properties of covalent compounds are as follows.

  • They are brittle in nature.
  • The do not have a rigid crystal structure.
  • They exist as solids, liquids and gases.
  • Covalent compounds do not conduct electricity.

Thus, we can conclude that out of the given options property that is typical of a covalent compound is that they have low melting and boiling points.

Answer: the correct option is (C).

Explanation:

Covalent compounds have lower melting and boiling points due to presence of weak inter-molecular forces by which molecules are weakly associated to each other. Hence, melting and boiling of covalent compounds occurs at low temperatures.

Usually, Covalents compounds have following properties:

  • They are brittle solids
  • They do not conduct electricity
  • They do not have rigid crystal structure.
  • They exist in all states: solids, liquids and gases.

Which of these is metamorphic rock formed from limestone? A.sandstone B.clay C.shale D.marble

Answers

D. Marble caused by heat and lots of pressure.

Answer:

Heres proof the first anwser is correct <3

Explanation:
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