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kodGreya [7K]
3 years ago
7

When a popsicle melts, the particles

Chemistry
1 answer:
lina2011 [118]3 years ago
7 0

Answer:

I think the answer is b but I could be wrong. but I believe the answer is b.

Explanation:

because As the popsicle melts, it goes through a change of state or phase change. A change of state when a substance changes physical form but not in molecule make up. The molecules do not change into something different they just gain or lose energy and movement.

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A substance that produces hydroxide ions when placed in water is a(n) _____.
bekas [8.4K]

Answer: A substance that produces hydroxide ions when placed in water is base.

Explanation:

Bases are the substance:

  • Which gives negatively charged hydroxide(OH^-) ions in aqueous solution.
  • Which have pH value ranging from 7 to 14.
  • BOH(aq)\rightarrow B^+(aq)+OH^-(aq)

Where as acid gives positively charged hydronium ion(H^+) in aqueous solution.

7 0
3 years ago
Read 2 more answers
Which of the following is true for the theoretical yield of a reaction? (1 point)
just olya [345]

Answer:

It is always twice the value of the actual yield.

Explanation:

3 0
3 years ago
Please help!!!
UNO [17]

The name of the compound Pb(NO3)2 is Lead(II)Nitrate. The bond type can be determined by finding the group in which the elements in the compound are placed in the periodic table.

The compound Pb(NO3)2 is Lead(II)Nitrate. The bond type in  Pb(NO3)2  is an ionic bond. The reaction between Lead(Pb) and Nitrogen with oxygen which are nonmetals is ionic in nature.

Naming a compound involves taking the charge of the valence electrons into consideration. The charge on the lead(Pb) is 2+ and the charge on NO3 is NO₃⁻. That is why the name of the compound is called Lead(II)Nitrate.

Therefore, we can conclude that the name of the compound Pb(NO3)2 is Lead(II)Nitrate. The bond type of the compound is ionic bonding and the convention for naming the compound requires taking the valence electrons of the elements participating in the compound into consideration.

Learn more about bond types here:

brainly.com/question/5201359?referrer=searchResults

5 0
3 years ago
Is boiling water until salt remainds a chemical or physical?
Alex17521 [72]
The answer is physical as neither component changes chemically.
3 0
4 years ago
While coming back from school, Seema noticed some cattle grazing in the field near his school. But one thing fascinated her was
Airida [17]

Answer:

Explanation:

These are normal field cows. When they are resting they are not chewing food but are actually chewing their cuds. By doing so they generate saliva which helps them properly digest all of the food that they have eaten and protect their stomach from any harmful chemicals that they may have ingested. A secondary benefit is also that it helps them produce milk more often. This is why you see these cows chewing at all times of the day even when they are not currently eating.

8 0
3 years ago
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