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igomit [66]
3 years ago
11

HELP ME

Chemistry
1 answer:
krok68 [10]3 years ago
3 0

Answer:

D group

................

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Arrange the metals used in this experiment (including H2 and Ag) in order of decreasing reactivity (most reactive metal first).
jarptica [38.1K]

Answer:

Na, Ca, Mg, All, Zn, Fe, Sn, Pb, H2, Cu, Ag

Explanation:

This is how metals are arranged in the electrochemical series.

Use the following to remember the order:

King Nathan Can Manage All Zone Freely Since Probably He Can Handle All Ages

Each word represent the order

K, Na, Ca, Mg, All, Zn, Fe, Sn, Pb, H2, Cu, Hg, Ag, Au

6 0
4 years ago
How many kilograms of the rock must be processed to obtain 2.0 kg of Pb ?
Pepsi [2]
15 kilogram of the rock must be processed.
6 0
3 years ago
Jaina just got home from a difficult workout. She is complaining of muscle soreness and cramps. Which waste product of fermentat
sveticcg [70]
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8 0
3 years ago
Describe a method to calculate the average atomic mass of using only the atomic masses of
AnnZ [28]

Answer:

Average amu is 6.52556

Explanation:

Average the numbers

Add the two masses together.

6.01512+ 7.01600= 13.03112

Then divide by 2, we divide by 2 because that is how many #'s we are given.

13.03112/ 2= 6.52556

6 0
3 years ago
Lastly, Snape thinks we should try one more calculation.
EleoNora [17]

Answer:

E) 0.90

Explanation:

In TLC (Thin-Layer-Chromatography) retention factor RF is defined as the ratio between distance of the sample and the solvent front. RF is very important in chemistry to know the composition of any sample by comparison.

In the problem, as the sample has a distance of 0,20cm from the solvent front, the distance of the sample is:

2,0cm - 0,20 cm =<em> 1,8 cm</em>. Thus, RF is:

RF = 1,8cm / 2,0cm = 0,90

<em>E) 0,90</em>

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I hope it helps!

3 0
3 years ago
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