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Chemistry

2 answers:

Sophie [7]2 years ago

5 0

Answer: B) The fireworks give off heat

pantera1 [17]2 years ago

4 0

The answer is, the fireworks give off heat. which is exothermic

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Hows everyone doing? tell me about your day in the comments thingy. mine aint going so great :/

GarryVolchara [31]

Answer:

Mine is doing good since I dont have any school today it makes it better. Im listening to scary stories on YT right now which always makes my day better so Im having a really good day today!

What about you? Why isn't your day doing so great?

6 0

3 years ago

Why are lonic Compounds brittle?

Kruka [31]

Ionic crystals are hard because of tight packing lattices, say, the positive and negative ions are strongly attached among themselves.

3 0

3 years ago

Do you think sexual reproduction or mutations are more important to increasing biodiversity?

tamaranim1 [39]

Answer:

Sexual Reproduction

Explanation:

With sexual reproduction biodiversity increases slightly every time that a new child is created. However mutations can be more drastic, the chances of it happening are very seldom.

8 0

3 years ago

Group 8A of the periodic table contains the A. most reactive nonmetals. B. least reactive nonmetals. C. most reactive metals. D.

aivan3 [116]

Answer: The correct answer is option B.

Explanation: There are 7 elements in group VIII-A. They are Helium (He), Neon(Ne), Argon(Ar), Krypton (Kr), Xenon (Xe), Radon (Rn) and Ununoctium (Uuo). They are considered as a part of group 18.

Metals are shown in purple color in the periodic table. Metalloids as blue color and Non-metals are shown in green color.

Group VIII-A elements have fully filled orbitals and hence are most stable amongst all the elements in the periodic table. They are considered as least reactive elements and as they are categorized as non-metals. So, they are the least reactive non-metals.

Therefore, the correct option is B.

7 0

3 years ago

Read 2 more answers

What is the individual ions for ZnCO3

mamaluj [8]

<span>ZnCO3 is an inorganic compound and it contains two parts; one is cation(positive part of compound) whereas other is anion(negative part of compound). Here, </span> $Zn ^{+2}$ <span> is cation and </span> $CO3 ^{-2}$ is anion. Hope this helps.

5 0

3 years ago