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Firdavs [7]
2 years ago
7

Which is not true about the upper paleolithic period?.

Chemistry
1 answer:
jok3333 [9.3K]2 years ago
5 0

Answer:The Upper Paleolithic period started about 40,000 years BC and ended about 10,000 years BC. So it took place between 40,000 and 10,000 BC. After that started the Mesolithic Era ( 10,000 to 4,000 BC ). Stone tools in the Upper Paleolithic period were primarly blade-based technology. Also this period is well known for the cave art and paintings of animals. Answer: C ) The period took place between 40,000 and 4,000 BC ( not true ).

Explanation:

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A student collects 629ml of oxygen at 0.500at, the student collected 0.0337 moles. At what temperature did the student collect t
VashaNatasha [74]

Answer:

114 K

Explanation:

Given data

  • Volume of oxygen (V): 629 mL = 0.629 L
  • Pressure of oxygen (P): 0.500 atm
  • Moles of oxygen (n): 0.0337 mol
  • Temperature (T): ?

We can calculate the temperature at which the student collected the oxygen using the ideal gas equation.

P \times V = n \times R \times T\\T = \frac{P \times V}{n \times R}  = \frac{0.500atm \times 0.629L}{0.0337mol \times 0.0821atm.L/mol.K} = 114 K

The oxygen gas was collected at 114 K.

4 0
2 years ago
Read 2 more answers
Why is sugar soluble in water while oil cannot form a solution?​
Viefleur [7K]

Answer:

the water and alcohol interact, which means the water doesn't even dissolve the sugar or color as well as it normally would. Oil molecules are not polar so they cannot dissolve either the coloring or the sugar.

Explanation:

4 0
3 years ago
Read 2 more answers
What is the most poisonous animal?
astraxan [27]

Answer:

That depends on what species it is

Explanation:

Like reptiles it is rattlesnakes

Spiders would be black widow

So it depends on the what species you what.

5 0
3 years ago
How do you use pedigrees to determine and explain the inheritance of traits?
Firdavs [7]
We know that organisms inherit their traits from their parents, and these traits are a combination of the traits their parents possessed. Therefore, by using a pedigree to map the ancestry of an organism, we may evaluate the propagation of a specific trait through the organism's family. An example of this is when people are assessed for the risk of diseases like breast cancer and sickle cell anemia.
5 0
2 years ago
What name is given to the amount of substance in an object?
STatiana [176]

Answer:

mole

Explanation:

is a unit of amount of substance in the International System of Units, defined (since 2019) by fixing the Avogadro constant at the given value. Sometimes, the amount of substance is referred to as the chemical amount

6 0
2 years ago
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