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Orlov [11]
3 years ago
5

What is the best option?

Chemistry
1 answer:
tatuchka [14]3 years ago
4 0
5 is the correct answer
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Which metal ion was green when placed in the fire?
Debora [2.8K]

Answer:

Barium Ba2+

Explanation:

Potassium lilac

Calcium orange red

Copeer blue green

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3 years ago
Greg and Shawn are studying for a physical science test. Greg thinks that the kinetic energy of an object depends on the height
Ludmilka [50]
It should be mass and speed so they are both incorrect because the height doesn’t mean much, but what matters is how heavy the object is, and how fast it’s going to go.
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3 years ago
What is the molarity of 2.00 L of a solution that contains 14.6 g NaCl?
White raven [17]

Answer: The molarity of the solution is 0.125 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n}{V_s}

where,

n = moles of solute

V_s = volume of solution in L

moles of NaCl = \frac{\text {given mass}}{\text {Molar mass}}=\frac{14.6g}{58.5g/mol}=0.250mol

Now put all the given values in the formula of molality, we get

Molarity=\frac{0.250mol}{2.00L}=0.125M

Therefore, the molarity of the solution is 0.125 M

8 0
3 years ago
Which characteristic is not used to categorize different types of landforms?
Oduvanchick [21]
It seems that you have not added the necessary options for us to answer this question so I had to look for it. But anyway, here is the answer. The characteristic that is NOT used <span>to categorize different types of landforms is this: a natural physical feature of the Earth's surface. Hope this answer helps.</span>
8 0
3 years ago
Early man discovered it and used it with wood. When I use it on this thing it smells so very good.
Hoochie [10]

Answer:

Fire was found by early man and used with wood, and it is used on a candle to smell good.

3 0
3 years ago
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