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Burka [1]
3 years ago
10

Please help science question ! thank you have a great day​

Chemistry
2 answers:
jolli1 [7]3 years ago
6 0

Answer:

The particle theory states that the particles of a substance spread out as they gain energy when heated. Thus, the particles take up more space, which means that the density of the substance decreases. It is almost always true that, for each pure sub­ stance (for example, gold), the density of its solid state is greater than the density

Explanation:

puteri [66]3 years ago
4 0

Answer:

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.

#kpop

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How many milliliters of 0.130 M HCl are needed to completely neutralize 41.0 mL of 0.107 M Ba(OH)2 solution?
Anvisha [2.4K]

54 mL Ba(OH)2x(0.101 mol Ba(OH)2/1000 mL) x (2 mol OH-/ 1 mol Ba(OH)2 )  = 0.0109 mol OH-

                                 

0.0109 mol OH-x (1mol HCl/ 1 mol OH- ) = 0.0109 mol HCl

                                                     

0.109 mol HCl/(0.130 mol/L HCl) =  0.0839 L HCl

0.0839 L HCl * 1000mL = 83.9 mL of 0.130 M HCl

3 0
3 years ago
According to the VSEPR theory, a molecule or ion of NH₃ will have a _____ shape.
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4 0
3 years ago
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4.8 moles of Kl are dissolved in 850 mL of water. What is the molarity of the solutions?
AURORKA [14]
Hey there!

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Hope this helps you dear :)
Have a good day :)
4 0
2 years ago
Explain what might happen to tundra animals, such as polar bears, as earth's climate warms. pls explain
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Answer: I would go with B

Explanation: The motor in a circuit isn't moving. That's very vague, but it doesn't show any evidence that an electrical current is going through it, likewise it doesn't show that an electrical current ISN'T going through it. However in regards to this question I would go with B.

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