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Allisa [31]
3 years ago
5

U peus

Chemistry
1 answer:
mote1985 [20]3 years ago
7 0

Gases

Explanation:

Gases are the highly compressible states of matter made up of tiny particles that are moving independently of one another and are present in large quantities on the earth surface.

There are three states of matter which are solid, liquid and gas.

  • The particles of a gas are very far apart and are held together by very weak attractive forces.
  • In a gas, the molecules are in continuous, random, straight -line motion
  • They are easily compressible due to the weak attraction between them.

Learn more:

State of matter brainly.com/question/10972073

#learnwithBrainly

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How will you recognize that a single replacement reaction has occured when you combine an active metal with 6m hcl?
frez [133]

A single replacement or displacement reaction occurs when one ingredient in a compound replaces another. Only another metal can replace a less active one; a metal can only displace another metal, and a non-metal can only displace another non-metal.

<h3>Displacement reaction:</h3>

The tendency of the element to lose electrons is what makes it metallic. Due to their bigger sizes and propensity to lose electrons as size, the number of shells, and nuclear force of attraction rise, the most active metals are found on the left side of the periodic table.

The reaction in which the more reactive element displaces the less reactive element is known as the displacement reaction.

When we combine an active metal with HCl, the reaction is as follows:

We are taking sodium, Na which is the most active metal. It will replace H in HCl because it is more reactive than H.

                       2Na + 2HCl → 2NaCl + H₂

Three ways to recognize if a single displacement reaction has taken place:

1. Color change

2. Formation of bubbles (a gas)

3. Formation of a precipitate

Learn more about displacement reaction here:

brainly.com/question/15343606

#SPJ4

8 0
2 years ago
Complete the sentences to identify the trend in first ionization energies as one proceeds down the group 7A elements and explain
Harrizon [31]

Answer:

a)decrease

b)increase

c)smaller

d)smaller

Explanation:

Ionization energy decreases down the group due to increase in the atomic radius. The distance between the outermost electron and the nucleus increases hence the nuclear attraction for the outermost electrons become smaller and the ionization energy also become smaller as electrons are now easily removed from the outermost shell.

Hence the group of answer choices provided above.

3 0
3 years ago
13. The type of chemical bond that forms between oppositely charged ions is aln) a. covalent bond.
Georgia [21]

Answer:

IONIC BOND

Explanation:

the force between oppositely charged IONS is and IONIC BOND

6 0
3 years ago
3. What causes the plates to be pulled apart?<br> PLEASE HELP
Tamiku [17]

Answer:

Hot magma rises from the mantle at mid-ocean ridges pushing the plates apart. Earthquakes occur along the fractures that appear as the plates move apart.:

6 0
3 years ago
Read 2 more answers
Can someone tell me if I did right?? Or if you have any ideas on what I should put it would be helpful
Lapatulllka [165]

Answer:

it looks good to me just pay attention to the subscriped, i always have trouble with that.

Explanation:

8 0
3 years ago
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