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jok3333 [9.3K]
3 years ago
11

SCIENCE HELP !!!! 10 POINTS

Chemistry
1 answer:
stich3 [128]3 years ago
5 0
Im working on science too!! I would help you but the attachment isn't pulling up..
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HELP PLEASE WITH 1 QUESTION.
Nata [24]
The activity series goes top to bottom, most active to least active elements, going: Li, K, Ba, Sr, Ca, Na, Mg, Mn, Zn, Fe, Cd, Co, Ni, Sn, Pb, H, Cu, Ag, Hg, Au. 

Thus, your list of metals would go from most reactive to least reactive: Li, K, Mg, Zn, Fe, Cu, Au
8 0
4 years ago
Which energy levels in the atom is the valence shell?
docker41 [41]
The electrons are what determines the energy level and reaction of the valence shell, hope it helps ❤️✌️
8 0
4 years ago
Which outcome occurs when bonds between atoms are broken or formed? A. a physical change B. an element increasing in size C. a c
snow_tiger [21]
The answer is C. Chemical change.
5 0
3 years ago
Read 2 more answers
If 225 cal of heat is added to 15.0 g of 2-propanol at room temperature, 25ºC, the alcohol will reach a final temperature of ___
natima [27]

Explanation:

I have no idea about this

6 0
3 years ago
Propanoic acid, ch3ch2cooh, has a pka =4.9. draw the structure of the conjugate base of propanoic acid and give the ph above whi
xenn [34]

Conjugate base of Propanoic acid (CH_{3}CH_{2}COOH is propanoate where -COOH group gets converted to -COO^{1-}. The structure of conjugate base of Propanoic acid is shown in the diagram.

The p^{H} above which 90% of the compound will be in this conjugate base form can be determined using Henderson's equation as propanoic acid is weak acid and it can form buffer solution on reaction with strong base.

p^{H}= p^{k_{a}+ log\frac{[Conjugate base]}{[acid]}=4.9+log\frac{90}{10}=5.85

As 90% conjugate base is present, so propanoic acid present 10%.

8 0
4 years ago
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