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siniylev [52]
2 years ago
6

Which of the following are observations? If a person walks by, then the dog will bark. The candle floats. The tire is flat becau

se of a decrease in temperature. The tires are flat. The dog is barking.
Chemistry
1 answer:
Softa [21]2 years ago
5 0

Answer:

hello, There!

I'll~ be ~Glad~to~help~you!

<h2>Your Question↓</h2><h3>Which of the following are observations?</h3><h2>Answer↓</h2>

❄ the candle floats, the tires are flat, and the dog is barking are observations.❄

Explanation:

↠ the three given statements are examples of observations, while the last two statements imply the concept of cause-effect relationships. ⬽

Have a great day! ⬽

Therefore, I hope this helps!

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What % of the earth's freshwater is found in glaciers and ice packs? 0.03% 0.03% 3% 3% 24.9% 24.9% 75%
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Answer:

En verdad solo el 0,025% del agua de la tierra es dulce

Explanation:

7 0
3 years ago
What do astronomers use to calculate the age of the universe? Select three options.
sasho [114]

The answers are

The age of the oldest stars

How fast distant galaxies are moving away from us

Patterns of background radiation.

Explanation:

The Astronomers calculate the age of the universe by looking for oldest stars, and by measuring the rate of expansion of the universe and back to big bang.

The Astronomers used the techniques like the age of oldest stars, how fast the distant galaxies are moving away from us, patterns of background radiation and along with the Big Bang as reference point, they estimate that the universe may be approximately 12 billion years old.

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3 years ago
How does the polarity of water make water more cohesive than other liquids?
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Cohesion holds hydrogen bonds together to create surface tension on water. Since water is attracted to other molecules, adhesive forces pull the water toward other molecules.
3 0
3 years ago
Which of the following is a nonrenewable resource?
Studentka2010 [4]

The answer is C) Nuclear.

The answer is C because, Renewable resources are something that can be re-used over and over again. Then Nonrenewable resources can't be made right away once it's been used. That being said, the answer is C.

A) Geothermal can be reused, which makes it renewable.

B) Solar can also be reused, which makes it renewable.

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8 0
3 years ago
Using the balanced equation N2+O2=2NO, how many grams of NO can be produced when 25.0 grams of N react?
Oxana [17]

Answer:

53.55gNO

Explanation:

Hello there!

In this case, according to the given chemical reaction, it is possible for us to calculate the produced grams of nitrogen monoxide by starting with 25.0 g of nitrogen via their 1:2 mole ratio and the molar masses of 30.1 g/mol and 28.02 g/mol, respectively and by some stoichiometry:

=25.0gN_2*\frac{1molN_2}{28.02gN_2}*\frac{2molNO}{1molN_2}*\frac{30.01 gNO}{1molNO}\\\\=53.55gNO

Best regards!

8 0
3 years ago
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