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alina1380 [7]
3 years ago
5

Plz HELP I NEED THIS NOW!!!!!!!!! What landscape region is Long Island located on?

Chemistry
2 answers:
frosja888 [35]3 years ago
8 0

Answer:

The Atlantic coastal plain.

Explanation:

Kobotan [32]3 years ago
4 0

The landscape region  of Long Island is the Atlantic coastal plain.

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Find the density of an object that has a mass of 5 kg and a volume of 50 cm3?
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Density = mass / volume

Mass = 5 kg

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Suppose there are two known compounds containing the generic elements X and Y. You have a 1.00-g sample of each compound. One sa
Lapatulllka [165]

I think the correct answers are X2Y and X3Y, X2Y5 and X3Y5, and X4Y2 and X3Y, for the following reason: 

If you look at the combining masses of X and Y in each of the two compounds, 

The first compound contains 0.25g of X combined with 0.75g of Y 
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The second compound contains 0.33 g of X combined with 0.67 g of Y 
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Now, you suppose to prepare each of these two compounds, starting with the same fixed mass of element Y ( I will choose 12g of Y for an easy calculation!) 

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<span>The ratio which combined the masses of X and the fixed mass (12g) of Y
= 4 : 6 
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So, the ratio of MOLES of X which combined with the fixed amount of Y in the two compounds is also = 2 : 3 </span>

The two compounds given with the plausible formula must therefore contain the same ratio.

8 0
3 years ago
If a balloon at 10 oC goes from 30L to 2L, what is the final temperature?
ICE Princess25 [194]
I think its the 3rd one 0.21
8 0
3 years ago
When a solution of an acid reacts with a solution of a base, hydrogen ions react with hydroxide ions to form?
svetoff [14.1K]
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3 0
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never [62]

Answer:

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Explanation:

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