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Anni [7]
3 years ago
15

Không tính toán cụ thể mà lý luận để :

Chemistry
1 answer:
kotykmax [81]3 years ago
3 0

Answer:

c) Tìm những chất có hàm lượng đồng bằng nhau trong 4 chất : CuO, Cu2O, CuS, Cu2S.

Explanation:

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Which of the following would represent a single displacement reaction between Potassium Bromide (K^+Br^-) and Iodine (I), which
ra1l [238]

Answer:

Option : KBr + I -> KBr+I

Explanation:

Single-replacement reaction or single displacement reactions are a type of chemical reactions in which a whole compound reacts with an element in such a way that the element takes place of one of the compound's own elements and sets it free.

If we talk about KBr and I displacement reaction is not possible among these because Iodine is less reactive than Bromine that is why it will not react with KBr or replace Br.

                       KBr + I -> KBr+ I


Potassium Bromide + Iodine -> Potassium bromide + Iodine


Hope it help!

5 0
3 years ago
What two-step process separated the cans into aluminum, steel, and tin?
Liono4ka [1.6K]

Answer:

Magnetivity and melting point.

Explanation:

Aluminum, steel and tin cans can be separated by two step process of magnetisation and melting point, because the three cans have different magnetic properties.

Steel attract to magnet easily because of it's has magnetic properties and these separate steel from aluminum.

Neither steel and aluminum melted at 300°C but Tin melt at that temperature.

3 0
3 years ago
31 Which ion has the smallest radius?<br> (1) O2-(2) S2-(3) Se2-<br> (4) Te2-
bearhunter [10]
The answer 1) Oxygen. And another smallest radius is fluorine, because it is the first in the periodic table.
6 0
3 years ago
Calculate relative mass of chlorine and boron by the help of given data Only 30 mins are left
bazaltina [42]
35.453 (chlorine) + 10.811 (boron) = 46.264
4 0
3 years ago
WHO KNOWS HOW TO DO THISSS NEED HELP RN PLS<br><br> Li PO4 + AlF →
Alecsey [184]

Explanation:

Your chemical equation should look like this:

Li3PO4 + AlF3 --> 3LiF + AlPO4

This is the balanced equation for a double-displacement reaction

4 0
3 years ago
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