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Alik [6]
2 years ago
13

Please help me I need these answers

Chemistry
1 answer:
Vladimir [108]2 years ago
7 0

Answer:

i am rrly bad at chemistry srry fffdfhdhdgduehgfhfhdhhfhdhdhdhdhdudhd

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Can you help me on this since im struggling on this since day 1
emmasim [6.3K]
Of Ok here is what I am thinking.

Simple replacement means when one element or compound moves out of another element and is replaced by this compound.

For example if you have A+BC ----- AC + B

Most of the time the one which is replaced is found on the right and the left one is going be only one element or compound.

Double replacement means when the two compounds exchange the positive and negative ions. Ok let see this example:


AB+ CD------- AD+ BC
this means if A have  + sign and D has - sign they will share to form new compound the same is true for DC. Don't forget that all compounds are formed from positive and negative ions. 

                                 QUESTIONS
CUSO4 + NA2S---- CUS + Naso4[ double replacement]
KBR +Pb[CLO3]2------K[clo3]2 +PbBr [ double replacement]
I do not  think these questions can be single replacement.
I hope this may helps you.

3 0
2 years ago
A student performing this experiment weights out 0.6680 grams of an antacid tablet. It is was determined that this tablet contai
Rufina [12.5K]

Answer:

63 wt%

Explanation:

0.4210/0.6680

3 0
2 years ago
What type of reaction occurs when potassium iodide is combined with lead (II) nitrate?
VARVARA [1.3K]

Answer:

double replacement occurs

8 0
2 years ago
How do you build a machine dealing with nucleous
Liono4ka [1.6K]
You use a nucleus with inflection on the arm processor.
5 0
3 years ago
Hypothesize How much do you think an apple weighs?
umka2103 [35]

Answer: 3 pounds

Explanation:

8 0
2 years ago
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