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Phantasy [73]
3 years ago
10

Describe how changing the particles changed the atom

Chemistry
1 answer:
Zanzabum3 years ago
5 0
Bonds between atoms break and new ones form and energy is either given out or taken in
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Licemer1 [7]
4. density, temperature, surface tension.
7. extensive properties- uses mass and volume depends on tbe amount of substance present.
6 0
3 years ago
Which substance is a compound?
svetlana [45]
The answer for the first question would be water. It is the substance that is a compound since it is made up of different elements. For the second item, i think the best answer is phosphorus and nitrogen. They are the limiting nutrients. For the last item, the correct answer is reservoirs.
5 0
3 years ago
Read 2 more answers
Write the net ionic equation for the precipitation reaction that occurs when aqueous solutions of potassium sulfide and chromium
alexgriva [62]

Answer:

S²⁻(aq) + Cr²⁺(aq) ⇄ CrS(s)

Explanation:

The molecular equation includes all the species in the molecular form. Usually, it is useful to write this first to balance the equation. This is a double displacement reaction.

K₂S(aq) + Cr(NO₃)₂(aq) ⇄ 2 KNO₃(aq) + CrS(s)

The full ionic equation includes all ions and the species that no dot dissociate in water.

2 K⁺(aq) + S²⁻(aq) + Cr²⁺(aq) + 2 NO₃⁻(aq) ⇄ 2 K⁺(aq) + 2 NO₃⁻(aq) + CrS(s)

The net ionic equation includes only those ions that participate in the reaction and the species that do not dissociate in water.

S²⁻(aq) + Cr²⁺(aq) ⇄ CrS(s)

7 0
3 years ago
Carbon dioxide is a molecule made up of a single carbon atom double bonded to two oxygen atoms. The electrons are shared equally
wolverine [178]

Answer:

The type of bonding does carbon dioxide have is covalent bonding.

Explanation:

There are 2 broadly types of chemical bonds present:

1. <u>Covalent bond:</u> This bond is present when there is sharing of electrons between two elements.

2.<u> Ionic bond:</u> This type of bond is formed when there is a complete transfer of electrons from one element to another element. In this bonding one element is always a metal and another is a non-metal.

We are given that a carbon atom is double bonded to two oxygen atoms. <u>Carbon and oxygen both are non-metals and hence, the bonds between them will be purely covalent in nature. </u>

Also, the valency of the carbon atom is 4. Thus, in the given case, the carbon atom is bonded to 2 oxygen atoms via double bonds. Thus, they all complete their octet by sharing the electrons.

<u>Hence, the type of bonding does carbon dioxide have is covalent bonding.</u>

3 0
3 years ago
Read 2 more answers
An unopened 350 mL can of diet Dr. Pepper will float in a lake. However, it’s also true that an unopened 350 mL can f regular Dr
iren [92.7K]

Answer:

Diet Dr. Pepper

Explanation:

The density of an object and the liquid involved determines if that particular object will float or sink in the particular liquid. An object will FLOAT if its density is lower than that of the liquid substance while it will SINK if its density is higher than that of the liquid substance.

In this case, water (lake) is the liquid substance. According to the question, an unopened 350 mL can of DIET Dr. Pepper will float in a lake because it is less dense than the water while an unopened 350 mL can of REGULAR Dr. Pepper will sink because it is more dense than water.

Hence, the DIET type of soda is the least dense

7 0
3 years ago
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