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pav-90 [236]
2 years ago
15

Please help! 20 Points!!!

Chemistry
2 answers:
-BARSIC- [3]2 years ago
8 0

Answer:

ag+ and zn2+

Explanation:

second question is A

lorasvet [3.4K]2 years ago
7 0

Answer:

I just did it home slice the first one's Ag+ and Zn2+ and the second one is A

Explanation:

I just did the assignment

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How many grams of solute are needed to order to prepare 100.00 mL of a 0.1000 M solution of a compound with a molecular weight o
Troyanec [42]

The grams of solute are required.

The mass of solute is 3.5 g

c =  Molarity = 0.1 M

M = Molar mass = 350 g/mol

V = Volume of solution = 100 mL = 0.1 L

n = Number of moles

m = Mass of solute

Molarity is given by

c=\dfrac{n}{V}\\\Rightarrow n=cV\\\Rightarrow n=0.1\times 0.1\\\Rightarrow n=0.01\ \text{moles}

Molar mass is given by

M=\dfrac{m}{n}\\\Rightarrow m=Mn\\\Rightarrow m=350\times 0.01\\\Rightarrow m=3.5\ \text{g}

The mass of solute is 3.5 g

Learn more:

brainly.com/question/16633651?referrer=searchResults

7 0
2 years ago
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11. What is the concentration (in M) of an ammonia (NH3) solution if 12.23 grams of ammonia are
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Answer:  1.284M NH3

Explanation:  (12.23 grams)/(17.0 gramms/mole) = 0.7191 moles

Dissolved in 560.0 ml (=0.5600L)

(0.7191 moles)/(0.560L) = 1.284M  (4 sig figs)

5 0
3 years ago
I give brainliest help pls
ivann1987 [24]
I believe the answer is a compound because compounds can be separated when put together while mixtures can not.
4 0
3 years ago
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some places such as caves and sinkholes have lower elevations than surrounding areas infer how a sink might be shown on a topogr
Andreyy89

Answer:

By closed contours with hachures

Explanation:

A sinkhole is a depression in the ground that forms when water erodes an underlying rock layer.

Sinkholes are denoted by closed contours with tick marks (hachures) that point towards lower ground.

The topographical map below shows the difference between the contours of a hill and those of a sinkhole.

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3 years ago
What happens to a glucose molecule when it loses a hydrogen atom as the result of an oxidation-reduction reaction?
OLEGan [10]

Answer:  oxidized

Explanation:

When a glucose molecule loses a hydrogen atom as the result of an oxidation-reduction reaction, the molecule becomes

oxidized.

Good luck! and sorry if is not the answer ur looking 4!

7 0
3 years ago
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