A river flows from approximately 45° north latitude toward the equator, as shown in the diagram below. As the water molecules in the river approach the equator the next to be happen is t<span>he molecules heat up and eventually form water vapor.
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Answer:
Matter is classified into two broad categories, namely, pure substances and mixtures. Mixtures can be separated into pure substances by physical methods. Pure substances are further divided into categories as elements and compounds. ... A pure substance can be either an element or a compound.
Explanation:
Answer:
None of the Above
Explanation:
The Athenosphere is able to flow but is also part of the UPPER LAYER meaning none of these choices are correct
Answer:
B?
Explanation:
In the example, the amount of hydrogen is 202,650 x 0.025 / 293.15 x 8.314472 = 2.078 moles. Use the mass of the hydrogen gas to calculate the gas moles directly; divide the hydrogen weight by its molar mass of 2 g/mole. For example, 250 grams (g) of the hydrogen gas corresponds to 250 g / 2 g/mole = 125 moles.
When it comes to addition of numbers the final answer should have the same number of decimal places as the least precise value or in other words the number with least number of decimal places
10.5 - has 1 decimal place
11.62 has 2 decimal places
add 10.5 + 11.62 = 22.12
the number with least number of decimal places is 10.5 with only 1 decimal place
therefore answer too should have 1 decimal place
22.12 rounded off to 1 decimal place is 22.1
answer is 22.1