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sergey [27]
3 years ago
15

What changes as you descend through the water column

Chemistry
1 answer:
nikklg [1K]3 years ago
4 0
As someone descends through a water column, the pressure increases. This happens because water at higher levels exerts weight on the lower layers of water.
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A fruit and oatmeal bar contains 142 nutritional calories. Convert this energy to calories
Alekssandra [29.7K]
Answer is: a<span> fruit and oatmeal bar contains 142000 calories.
</span>A nutritional calorie<span>, or kilocalorie, is equal to 1000 calories.
</span>E = 142 kcal · 1000 cal/kcal.
E = 142 000 cal.
Calorie (cal)<span>, or small calorie, is the amount of energy needed to heat one gram of water by one degree Celsius.
</span><span>One small calorie is approximately 4.2 joules.
</span>A calorie is a unit of energy.
8 0
3 years ago
How many particles are in 4g of NaCl? (1mol of NaCl = 58g) – 2 step conversion
oksian1 [2.3K]

Answer:

4.16 * 10²⁴ particles

Explanation:

1. We convert from grams to moles

4 g NaCl / 58 g of NaCl = 0.0689655172 moles

-> 0.0690 moles

2. Now we will convert from moles to particles by multiplying by avogadro's number..

0.0690 * 6.022 *10²³ = 4.15518 * 10²⁴ particles or 4.16 * 10²⁴ particles

4 0
3 years ago
Please help it’s a test due in five minutes! I’ll give 10 points
barxatty [35]

Answer: negative acellaration or mass.

Explanation:

the first reason why is that i got that quistion right. and when objects are unbalanced it gives negative acellaration

3 0
3 years ago
The mass in grams of 6.0 mol hydrogen gas (contains h2) is
Flura [38]
Mass = moles x molar mass
so mass of 6 moles of h2 is: 6×1×2 = 12g
4 0
3 years ago
Read 2 more answers
Which of the following could be said about ecological footprints?
Thepotemich [5.8K]
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</span>Which of the following could be said about ecological footprints? <u /> <u>Exact ecological footprints are often difficult to calculate, but estimates can be useful in comparing populations.</u><u />


NOT:
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C. Ecological footprints don't take into account resources needed to absorb and manage wastes.
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3 years ago
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