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Daniel [21]
3 years ago
7

Which BEST describes the difference between speed and velocity? A) Velocity is instantaneous.

Chemistry
2 answers:
photoshop1234 [79]3 years ago
4 0

Answer:

D.

Explanation:

Speed is a scalar which has  rate of change only . Velocity has rate of change and direction making it a vector.

aleksandrvk [35]3 years ago
3 0

Answer:

Option D describe the best this statement .

Explanation:

As velocity is the quantity which includes the rate of change as well as direction

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Name two metalloids that are semiconductors
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The Metalloids are:

Boron.

Silicon.

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3 years ago
if you take a dried out white rose and place the stem in food coloring, will the rose turn the color you put the stem in
cricket20 [7]

Answer:

Yes, this is true. The reason is that the flower transpires and sucks the water in and distributes it as much as it can. You can also flip it upside down and hang it with petals down , allowing the liquid to enter the flower and then retaining color for longer periods of time and having more color.

Explanation:

7 0
3 years ago
Which of the following solutions would have [Fe3+] = 0.020 M?
Shalnov [3]

Answer:

None of the given options

Explanation:

Let's go case by case:

A. No matter the volume, the concentration of Fe(NO₃)₃ (and thus of [Fe³⁺] as well) is 0.050 M.

B. We can calculate the moles of Fe₂(SO₄)₃:

  • 0.020 M * 0.80 L = 0.016 mol Fe₂(SO₄)₃

Given that there are two Fe⁺³ moles per Fe₂(SO₄)₃ mol, in the solution we have 0.032 moles of Fe⁺³. With that information in mind we <u>can calculate [Fe⁺³]</u>:

  • 0.032 mol Fe⁺³ / 0.80 L = 0.040 M

C. Analog to case A., the molar concentration of Fe⁺³ is 0.040 M.

D. Similar to cases A and C., [Fe⁺³] = 0.010 M.

Thus none of the given options would have [Fe⁺³] = 0.020 M.

7 0
2 years ago
Which of the following is the most likely impact of clearing natural landscape to construct high-rise buildings?
Salsk061 [2.6K]

Answer:

the abundance of non-native plants. this MAY be right.

Explanation:

i thought it would be an increase in pollution.

7 0
2 years ago
Is 2Zn + 2HCI = ZnCL2 + H2 balanced or unbalanced
riadik2000 [5.3K]
Unbalanced it should be 2Zn+2Hcl=2ZnCl2+H2
7 0
3 years ago
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