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Cerrena [4.2K]
3 years ago
11

This chart shows the global temperature anomaly (the difference of the expected temperature and the actual temperature) over a s

pan of 130 years. Which facts related to climate change does the chart reveal? !THERE IS MORE THAN ONE ANSWER! (Earth science) 20 points.
a. From 1975 to 2010, temperatures on Earth were higher than normal.
b. From 1880 to 1940, temperatures on Earth were higher than normal.
c. The 10 warmest years in the time span all occurred in the 2000s.
d. The coolest year in the time span occurred in 1945.
e.Temperatures on Earth do not fluctuate from year to year.

Chemistry
2 answers:
aliina [53]3 years ago
4 0

Answer:

a. From 1975 to 2010, temperatures on Earth were higher than normal.

Explanation:

Hello,

Based on the graph's tendency and behavior, an evident outgrowth in temperature is shown from 1975 to 2010 since the temperature anomaly passed from 0°C to more than 0.5 °C during this time span.

Best regards.

Vaselesa [24]3 years ago
3 0
I think a and c. Let me know if I am wrong.
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3 years ago
What is the empirical formula of an oxide of nitrogen containing 63.61% by mass of nitrogen and 36.69% by mass of oxygen?
ioda

N₂O is the empirical formula of an oxide of nitrogen containing 63.61% by mass of nitrogen and 36.69% by mass of oxygen.

Empirical formula can be calculated by

Suppose we have 100 g of the substance. That indicates that it has 36.69 grams of oxygen and 63.61 grams of nitrogen.

Masses transformed into moles:

Formula used

Given mass/ Molar mass

14.01 g contains 1 mol of N

So 63.61 g of N contains moles is equals to

(1 mol N / 14.01 g N) 63.61 g N = 4.540 mol N

Similarly

16 g of O contains 1 mole of O

36.69 g of O contains moles is equals to

(1 mol O / 16.00 g O) 36.69 g O = 2.293 mol O

Divide by the smallest to normalize:

4.540 / 2.293 = 1.980 mol N

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Therefore, there are roughly twice as many N as O atoms. N2O is the empirical formula as a result.

Ratio is basically 2:1

Hence, N₂O is the empirical formula of an oxide of nitrogen

Learn more about Empirical Formula here brainly.com/question/27873410

#SPJ4

7 0
2 years ago
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