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dangina [55]
3 years ago
5

Of the groups below, which are the least chemically reactive?

Chemistry
1 answer:
seropon [69]3 years ago
8 0

It is actually Group 3A elements. I just took the test.

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What is silicone used for
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sealants, adhesives, lubricants, medicine, cooking utensils, and thermal and electrical insulation

Explanation:

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3 years ago
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A chemical change in which an ion of one compound replaces an ion of another compound is which of the following?
butalik [34]

Pick C Because it's

Explanation:

a chemical reaction in which one element replaces another in a compound. F₂ + 2NaCl → 2NaF + Cl₂, where F replaces Cl in NaCl. A double-replacement reaction is a reaction in which the metals in two ionic compounds exchange partners.

6 0
3 years ago
Darryl finds a bottle of what looks like clear water, with dirt settled at the bottom. When he shakes the bottle, the water gets
Mazyrski [523]

Answer: The correct answer is Heterogeneous mixture

Explanation:

Heterogeneous mixture are those mixture in which:

  • Substance is distributed in non uniform manner.
  • Two distinct layers are formed

Thus when water and dirt are mixed together it results in the formation of  a heterogeneous mixture and after sometimes two different layers will be observed.

Hence, in the bottle there is a heterogeneous mixture of water and dirt.


3 0
3 years ago
a nuclide of 64/29 cu absorbs a positron. witch is the resulting atom? (A) 65/29Cu (B) 63/29 CU (C) 64/28Ni (D) 64/30 Zn
Nesterboy [21]

Answer : Option D) Zn^{64}_{30}

Explanation : When a positron is getting absorbed it means it will be e^{+1}_{0} so, the Cu^{64}_{29} will get converted;

So, the whole reaction will be;

Cu^{64}_{29} + e^{+1}_{0} ----> Zn^{64}_{30}.

This will convert the whole element of Cu will get changed into Zn. As, it absorbs by the positron, the atomic number gets increased from 29 to 30.

4 0
3 years ago
What are you measuring when
wariber [46]

Answer:

B. the amount of atoms you contain

3 0
2 years ago
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