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ArbitrLikvidat [17]
2 years ago
15

Which skill involves creating representations of complex objects or processes? A. classifying B. predicting C. making models D.

evaluating (this is probably really easy, but my mind is going blank)
Chemistry
1 answer:
Murljashka [212]2 years ago
8 0

Answer:

C. making models

Explanation:

Making models facilitates constructing depictions of complex objects or practices that enable students to practice and understand how things work which can not be observed and measured directly. Model making needs abstract thinking about the tools and material used, spatial thinking, and well-organized idea of the project to create complex objects.

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What characteristic of the light is affected by the amplitude of the light
Vadim26 [7]

Answer:

I think B but I'm not sure.

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2 years ago
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When 32 grams of aluminum react, the actual yield is 105.5 grams, what is the percent yield?
user100 [1]

Answer:

329.7%

Explanation:

Percent Yield = Actual Yield/ Theoretical Yield x 100%

Percent Yield = 105.5g/32 x 100% = 329.69 ≈ 329.7 %

5 0
3 years ago
What is the best description of what Becquerel observed in his experiment?
myrzilka [38]

The answer is: D.unstable nuclei emitting high-energy particles as they formed more stable compositions.

Those high-energy particles are alpha particles , beta particles , gamma radiation.

For example, the decay chain of ²³⁸U is called the uranium series.

Decay start with U-238 and ends with Pb-206. There are several alpha and beta minus decays.

Antoine Henri Becquerel (1852 – 1908) was a French physicist and the first person to discover evidence of radioactivity.

Becquerel wrapped fluorescing crystal (uranium salt potassium uranyl sulfate) in a cloth, along with the photographic plate and a copper Maltese cross.

Several days later, he discovered that a image of the cross appeared on the plate.

The uranium salt was emitting radiation.

Because of this discovery, Becquerel won a Nobel Prize for Physics in 1903, which he shared with Marie Curie and Pierre Curie.


5 0
2 years ago
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The graph shows the consumption of gasoline and diesel fuels by vehicles in the United States for a period of 40 years.
grigory [225]

Answer:

B. It would lead to an increase of global temperatures.

Explanation:

Gas burns when it is hot. Therefore the more gas that our cars consume, the hotter the air will be when the car releases those gas vapors. Causing the air to become hotter.

Hope this helped <3 :) brainliest?

5 0
2 years ago
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Now that you have exercised, walked your
ASHA 777 [7]

Answer: The moles of melatonin are 0.000043

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to its molecular mass and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

Given mass of melatonin = 0.01 g

Molar mass of melatonin (C_{13}H_{16}N_2O_2) = 232.28 g/mol

\text{Number of moles of melatonin}=\frac{0.01 g}{232.28g/mol}=0.000043mol

Thus the moles of melatonin in 0.01 g are 0.000043

4 0
2 years ago
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