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prohojiy [21]
3 years ago
11

Must new substances be formed when you observe a chemical property? Explain

Physics
1 answer:
castortr0y [4]3 years ago
5 0
Yes. It is rather a natural phenomenon. If you search and understand the process of chemical change or reaction that results to its chemical property outcome, it has a new formed substance. Unlike physical change or reaction it only changes in shape or form but the substance, compound or element in the matter is till the same. Furthermore, when chemical change is undergoing you notice the change in shape, size and from like the physical change but there is a change in the element, compound or substance. When you lit a fire on a paper the fire disorients, disorganizes and disturb the former positions of the atoms and because of the fire as catalyzer the atoms did its behavior –changing both intrinsic and extrinsic.



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I do not recall the answer to this question
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A diet is to contain at least 2400 mg vitamin C, 1800mg Calcium, and 1200 calories every day. Two foods, a dairy-based meal and
Kay [80]

Answer:

The answer is below

Explanation:

Let x represent the number of ounce of dairy based meal and let y represent the number of vegan option in ounce.

Since the diet must contain at least 2400 mg vitamin C, therefore:

50x + 20y ≥ 2400

Since the diet must contain at least 1800 mg Calcium, therefore:

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Since the diet must contain at least 1200 calories, therefore:

10x + 40y ≥ 1200

Therefore the constraints are:

50x + 20y ≥ 2400

30x + 20y ≥ 1200

10x + 40y ≥ 1200

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The graph was drawn using geogebra online graphing tool, and the solution to the problem is at:

C(30, 45) and D(48, 18)

dairy-based meal costs $0.042 per ounce and the vegan option costs $0.208 per ounce. The cost equation is:

Cost = 0.042x + 0.208y

At C(30, 45);  Cost = 0.042(30) + 0.208(45) = $10.62

At C(48, 18);  Cost = 0.042(48) + 0.208(18) = $5.76

The minimum cost is at (48, 18). That is 48 dairy based meal and 18 vegan

4 0
3 years ago
Suppose that the collector is held at a small negative voltage with respect to the grid. Will the accelerated electrons reach th
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Answer:

B) Yes, but only those electrons with energy greater than the potential difference established between the grid and the collector will reach the collector.

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so according to the given situation, the option b is correct

And, the rest of the options are wrong

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What is the slope of the line if the rise of a line on a distance versus-time graph is 900 meters and the run is 3 minutes?
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OR

600/ (3/60) =
600 x 60/3 =
600 x 20 = 12,000 meters per hour 

6 0
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