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sashaice [31]
3 years ago
12

Which substance can be broken down by chemical means?

Chemistry
2 answers:
zepelin [54]3 years ago
4 0
Methanol is the substance that can be broken down by chemical means, the remaining ones are elements.
bearhunter [10]3 years ago
4 0
4. Methanol

Methanol is a compoud. The rest of the choices are elements. Elements can't be broken down, and compounds can.
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Is iornIInitrate ionic or covalent
kondaur [170]

Answer:

Iron (II) nitrate is ionic compound

Explanation:

Formula:

Fe(NO₃)₂

Iron (II) nitrate is ionic compound.

Its molecular mass is 179.85 g/mol.

NO⁻₃ is anion while Fe⁺² is cation.

Iron loses its two electron which is accepted by nitrate.

Its molecular formula can be written as FeN₂O₆.

Its color is pale green.

Its melting point is 333.65 K.

It is para magnetic compound.

it is mostly present in non hydrated form.

It is also known as ferric nitrate.

It is used to form sodium amide.

Its is also used catalyst.

7 0
3 years ago
Which change does an increase in heat energy cause?
Bumek [7]

Answer:

C more collision between molecules

Explanation:

increase in heat causes increase in kinetic energy of the particles

5 0
2 years ago
Describe a sigma bond.A) overlap of two f orbitalsB) end to end overlap of p orbitalsC) s orbital overlapping with the side of a
lyudmila [28]

Answer:

B - End to end overlap of p overlap

Explanation:

Sigma bonds (σ bonds) are the strongest type of covalent chemical bondSigma bonds are formed by end-to-end overlapping. Sigma bonds can occur between any kind of atomic orbitals;The combination of overlapping orbitals can be s-s, s-pz or pz-pz.                              

8 0
3 years ago
What is a common use of bases?
Fittoniya [83]

A common use of bases is to reduce indigestion. Hence, option D is correct.

<h3>What is the base?</h3>

A base is a substance that can neutralize the acid by reacting with hydrogen ions.

Bases are substances whose solutions have a pH value of more than 7. Bases are bitter in taste.

Whereas acids are the substances whose solutions have a pH value of less than 7. Acids are sour in taste.

When an excess of acid is formed in the human stomach then an antacid tablet which is basically a base is consumed that helps in reducing indigestion.

Therefore, we can conclude that the common use of bases is to reduce indigestion.

Learn more about the base here:

brainly.com/question/1432645

#SPJ1

3 0
2 years ago
Someone please answer i’ll give brainliest
Viktor [21]

Answer:

A) wrong. The molar is same so A is hevier

B)

Explanation:

Xg/mol × (same molar)= g

→ bigger molar bigger mass

8 0
2 years ago
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