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SCORPION-xisa [38]
3 years ago
7

Describe the structure of an atom.

Chemistry
1 answer:
pochemuha3 years ago
5 0
The answer would be A
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What about 50 g of water?<br> I need help what this
ELEN [110]

Answer:

3.38  Tablespoons

10.14 Teaspoons

0.21 U.S. Cups

0.18 Imperial Cups

0.20 Metric Cups

50.00 Milliliters

Explanation:

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How do I calculate the moles consumed in a vinegar titration?
Shtirlitz [24]

Answer: Use the titration formula

Explanation:

8 0
4 years ago
A 50.0 mL sample of 1.54×10−2 M NaSO4 is added to 50.0 mL of 1.28×10−2 Ca(NO3)2. What percentage of the Ca2+ remains unprecipita
Gwar [14]
The reaction would be as shown below;
Na2SO4 + Ca(NO3)2 = CaSO4 + 2 NaNO3
The moles of NaSO4 will be;
   = 0.05 × 0.0154 = 0.00077 moles
While the number of moles of Ca(NO3)2
   = 0.05 × 0.0128 = 0.00064 moles
The mole ratio of sodium sulfate and calcium nitrate is 1:1
Ca(NO3)2 is the limiting reactant, so ignoring the Ksp of CaSO4, zero percent of the Ca^2+ ions remain unprecipitated.
3 0
3 years ago
If the Sun were much smaller than its current size, what effect would this have on eclipses?
sergiy2304 [10]
Total solar eclipses would be more common, because it would be easier for the moon to cover it, which is a solar eclipse.
8 0
3 years ago
Which of the following substances could the unknown be: KOH, NH3, HNO3, KClO2, H3PO3, CH3COCH3 (acetone)?
valkas [14]

Answer:

CH3COCH3

Explanation:

Acetone is an organic compound belonging to the organic ketone function.

To recognize which function a compound belongs to, we must analyze its functional group. For example, hydroxyl (OH) is characteristic of alcohols. For ketones, the functional group is carbonyl, which is represented below.

Analyzing the options, we can notice that NH3, HNO3, KClO2 and H3PO3 are inorganic compunds, because they don't have carbon in their structures. KOH has the hydroxyl, so it's a alchol, and CH3COCH3 may be writing as a ketone.

6 0
3 years ago
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