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Katarina [22]
3 years ago
5

Which choice is not true of a liquid in a glass capillary with a convex meniscus?

Chemistry
2 answers:
GalinKa [24]3 years ago
6 0
It's false that the liquid has strong cohesive forces (since cohesive forces mean the liquid is essentially attracted to itself, and that would result in a concave meniscus).
Mamont248 [21]3 years ago
5 0
I believe <span>The liquid has strong cohesive forces.</span>
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You purchase a bottle of concentrated sulfuric acid from a chemical supplier. The bottle reads Sulfuric acid (95% w/w) plastic c
My name is Ann [436]

Answer:

The molarity of the sulfuric acid is 0.018 M

Explanation:

The molarity of a solution is the number of moles of the solute (sulfuric acid in this case) in a 1-liter solution.

Every 100 g of the solution, we have 95 g sulfuric acid because its concentration is 95% w/w.

With the density, we can calculate how many liters are 100 g of solution:

density = mass / volume

1.85 g / ml = 100 g / volume

volume = 100 g / 1.85 g/ml

volume = 54.1 ml or 0.0541 l

Now, we know that we have 95 g sulfuric acid in 0.0541 l solution. In 1 l, we have then:

1 l * 95g / 0.0541 l = 1.756 g sulfuric acid.

But we want to know how many moles sulfuric acid we have per liter. Then, using the molar mass, we can calculate how many moles there are in 1.756 g sulfuric acid:

1.756 g * 1 mol / 98.08 g = 0.018 mol

The molarity is 0.018 M

4 0
3 years ago
Which statement correctly describes potassium iodide, KI? There is a one-to-one ratio of potassium ions to iodide ions. Potassiu
elena-14-01-66 [18.8K]

The answer is there is a one-to-one ratio of potassium ions to iodide ions.

Explanation :

- (K) belongs to Alkali metals in group (1A) that contains (1) electron in the outermost energy level, whereas, (I) is from halogens in group (7A) that contains (7) electron in the outermost energy level.

- To achieve stability, both atoms tend to reach the nearest noble state (outermost level occupies 8 electrons). Therefore, (K) loses its outer electron and gives it to (I) which now has a completely filled outer level and an ionic bond is formed between the two.

- The valency (number of electrons lost, gained or shared) of both atoms is equal ”monovalent” which means one-to-one ratio..


5 0
3 years ago
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Which direction does thermal energy flow in the following diagram? the picture is of someone holding an ice cream cone
Sliva [168]
The answer is B. Heat flows from the hand to the ice cream. The state of equilibrium won't occur for this since the only reactant is heat.
8 0
3 years ago
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The iupac name this compound​
MrRa [10]

Answer:

It's <em>HYDROXIDE</em><em> </em>

Explanation:

You do not call it as hydroxide <em>ion</em><em> </em>because ion always have + or -

I hope this helps

HAVE A GOOD DAY!

5 0
3 years ago
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Waves crash on a beach one after another. Why doesn't water pile up on the beach
Klio2033 [76]

sand

Explanation:

it is absorbing it

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3 years ago
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