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Vesna [10]
3 years ago
7

Which of the following most likely happens during a chemical change?

Chemistry
2 answers:
mina [271]3 years ago
6 0

Answer:

D

Explanation:

Take for instance the reaction

2Mg(s) + O2(g) --------->MgO(s)

Initially, the isolated substances were atoms of magnesium and oxygen. A new combination of atoms must be formed in the chemical change known as combustion hence the answer.

miskamm [114]3 years ago
4 0

Answer:

Different atoms than before are introduced after the change

Explanation:

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Highlight the correct answer - polar or non polar
fgiga [73]

Answer:

1. Polar

2. Non-polar

3. Non-polar

4. Polar

5. Non-polar

6. Polar

Explanation:

Polar bonds are formed between molecules that share electrons unequally/unevenly. In a polar molecule, one atom is more electronegative than the other i.e it attracts/pulls more electrons than the other atom, hence, it ends up leaving the other atom with a positive charge i.e fewer electrons around its atom. Also, every molecule that has a symmetrical arrangement is NON-POLAR while the opposite is POLAR.

Based on this, the answers to the asked questions are in BOLD.

1. A POLAR bond is one where there are more shared electrons grouped around one atom than the other.

2. A NON-POLAR bond is one where the electrons are evenly distributed between the two atoms sharing electrons.

3. A molecule with symmetry is NON-POLAR

4. A molecule that does not have symmetry is POLAR.

5. A NON-POLAR molecule has its valence electrons evenly distributed around the molecule.

6. A POLAR molecule has one of its sides with more or fewer electrons than the other sides.

7 0
3 years ago
Am i adopted? and why​
vredina [299]

Answer:

because you are a living organism. you also have feeling.

6 0
3 years ago
Read 2 more answers
Which statement is accurate for these two sub-atomic particles.
krek1111 [17]

Answer:

The correct answer is "They are both located in the nucleus".

Explanation:

I had to look for the problem and found that the particles are a Proton and a Neutron.

The atomic nucleus is the central section of an atom, is positively charged and has almost the entire mass of the atom.

The nucleus is formed by protons and neutrons, which are held together by strong nuclear interaction, which allows the nucleus to be stable.

Have a nice day!

8 0
4 years ago
Does anyone know the answer???​
Dmitrij [34]
And Answer what answer would be 3.14
7 0
3 years ago
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How do you tell if a reaction is endothermic or exothermic using only the written formula
irina [24]
You know if it's endothermic or exothermic by doing the enthalpy reaction. If the change of temperature is negative then it is exothermic, while positive is endothermic. If you get -22K then its exothermic, but if you get +22 its endothermic.
6 0
3 years ago
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