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4 years ago

HELP PlEASE

Chemistry

2 answers:

Sergeeva-Olga [200]4 years ago

6 0

Answer:

1 Polymer

2 Aluminum

3 Hydrocarbons

4 monomers

5 their functional group

6 polyethylene

Explanation:

i took the test

hoa [83]4 years ago

3 0

Answer:Question# 1) Polymer

Question # 2) Aluminum

Question #3) Hydrocarbons

Question # 4) monomers

Question # 5) their functional group

Question # 6) polyethylene

Explanation:

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Effectus [21]

4.7 is the answer!

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2 years ago

Recently you viewed a movie in which a spaceship blows up outside a space station. The people inside the space station jump with

Vlad1618 [11]

Answer:

Sound needs a medium through which to travel.

Explanation:

In space there is no air or medium. Sound waves need medium to travel. It cannot travel through vacuum. Sounds waves are mechanical waves unlike electromagnetic waves. Electromagnetic waves can travel through vacuum. But mechanical waves such as sound waves needs a medium to propagate the energy. So it is very unlikely that people inside the space station can hear the explosion that occurs in space outside the space station.

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4 years ago

Sort each characteristic according to whether it describes acid, bases, or both.

VARVARA [1.3K]

Answer:

Acids: react with metals, taste sour

Both: can cause burns, conduct electricity

Basis: react with nonmetals, taste bitter

Explanation:

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3 years ago

Which of the following redox reactions do you expect to occur spontaneously in the forward direction?

Leni [432]

Among the choices provide above the redox reactions do you expect to occur spontaneously in the forward direction is the below:

Fe2+(aq) + Zn(s) -> Fe(s) + Zn2+(aq)
 Al(s) + 3Ag+(aq) -> Al3+(aq) + 3Ag(s)

Those reactions will proceed when the metal that is a solid is higher up in the electromotive series than the metal that is an ion (dissolved).

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3 years ago

Read 2 more answers

For each of the following compounds, state whether it is ionic or covalent, and if it is ionic, write the symbols for the ions i

kupik [55]

Answer :

Covalent compound : It is defined as the compound which is formed by the sharing of electrons between the atoms forming a compound.

The covalent compound are usually formed when two non-metals react.

Ionic compound : It is defined as the compound which is formed when electron gets transferred from one atom to another atom.

All the polyatomic ions always form an ionic compound.

Polyatomic ions : It is a charged species that composed of two or more atoms and these charged species are bonded by the covalent bond.

For the given options:

Option A: $KClO_4$

This compound is formed by the combination of potassium, $K^+$ which is a metal and $ClO_4^-$ ion which is a polyatomic ion. Thus, it will form an ionic compound.

Option B: $Mg(C_2H_3O_2)_2$

This compound is formed by the combination of magnesium, $Mg^{2+}$ which is a metal and $C_2H_3O_2^{-}$ ion which is a polyatomic ion. Thus, it will form an ionic compound.

Option C: $H_2S$

Hydrogen and sulfur, both are non-metals and they will form a covalent compound.

Option D: $Ag_2S$

This compound is formed by the combination of silver, $Ag^{+}$ which is a metal and sulfur, $S^{2-}$ which is a non-metal. Thus, it will form an ionic compound.

Option E: $N_2Cl_4$

Nitrogen and chlorine, both are non-metals and they will form a covalent compound.

Option F: $Co(NO_3)_2$

This compound is formed by the combination of cobalt, $Co^{2+}$ which is a metal and $NO_3^{-}$ ion which is a polyatomic ion. Thus, it will form an ionic compound.

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3 years ago