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Sloan [31]
3 years ago
7

Which two chemical substances are needed to begin the photosynthesis factory process?

Chemistry
1 answer:
Rudiy273 years ago
5 0
<span>Carbon dioxide CO2 and water H2O. Through photosynthesis makes sugar C6H12O6.</span>
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In the density of a liquid activity, the graph had an intercept. If you were to make a similar graph using metal blocks, would t
Alex17521 [72]

Answer:

NO

Explanation:

<u>It would be difficult to plot a line of best fit on the scattered graph of the activities of metal blocks as the activities would almost be the same horizontally on the graph</u> and an attempt to draw/determine an intercept will be almost impossible.  The line of best fit is usually drawn to determine the relatedness/correlation of the variables.

Drawing intercept for the activities of the liquid is easier because a line of best fit can be easily placed between the clustered liquid activities on the scattered plot.

8 0
3 years ago
WILL RECIEVE MEDAL!If 1.2 kilograms of rust form on a bridge in five days, what should be the rate of reaction in grams per hour
serious [3.7K]
<span>Since the answer is in grams, kilograms must first be converted to grams. A kilogram is equivalent to 1000 grams. Therefore, multiply 1.2 kilograms by 1000 and you get 1,200 grams. Then, calculate the number of hours in 5 days. Each day is 24 hours and 24 hours multiplied by 5 days equals 120 hours. Lastly, since the answer is in grams per hour, divide 1,200 grams by 120 hours and the resultant rate of reaction is 10 g/hr.</span>
8 0
3 years ago
If khp sample #1 requires 27.30 ml of naoh solution to reach an endpoint, what volume should be required for samples #2 and #3
Setler79 [48]
<span>Sample #2 and sample #3 must have the equal volume as sample #1 ,if the masses of the both samples are equal to mass of sample #1.
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3 0
3 years ago
Is air an element, compound or mixture? explain your answer
emmainna [20.7K]

It is a mixture because the compounds that make up air e.g. oxygen (o2), Carbon dioxide (co2) and the most important Nitrogen which is an element and makes up 78.09% of air are not chemically bound in the way that compounds are because they can be separated easily and there has been no change in state to any of the compounds or elements in air!hope this helpful!

3 0
3 years ago
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If you had a beaker full of black powder which of the following could you have?
Evgesh-ka [11]
A beaker of black powder can be a mixture with different substances (i.e gunpowder: a mixture of sulfur, charcoal, etc.), an element which can probably be carbon (known as black), and a compound as well which can be potassium nitrate. Hence, the answer is D. 
8 0
3 years ago
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