1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Firdavs [7]
1 year ago
7

Which is not true about the upper paleolithic period?.

Chemistry
1 answer:
jok3333 [9.3K]1 year 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:

You might be interested in
Does an astronaut have more mass on earth then space? why or why not?
katovenus [111]

Answer:

No

Explanation:

No, his mass remains the same no matter where he is in the universe.

But then again the moon has less gravitational pull, therefore your weight and mass will be smaller in space and on the moon than on earth

I hope this was helpful! ;)

3 0
3 years ago
The distance between two points on a map is 0.704 kilometers. What is the distance in meters?
loris [4]
704 meters is the answer
6 0
3 years ago
Read 2 more answers
Klklklkllkllklkklkllkl
Svetradugi [14.3K]

Answer:

klklklkllkllklkklkllkl

Explanation:

Cuz thats what you said.. and why not :)

5 0
2 years ago
In a lab experiment 80.0 g of ammonia [NH3] and 120 g of oxygen are placed in a reaction vessel. At the end of the reaction 72.2
valentinak56 [21]

The percent yield of the reaction : 89.14%

<h3>Further explanation</h3>

Reaction of Ammonia and Oxygen in a lab :

<em>4 NH₃ (g) + 5 O₂ (g) ⇒ 4 NO(g)+ 6 H₂O(g)</em>

mass NH₃ = 80 g

mol NH₃ (MW=17 g/mol):

\dfrac{80}{17}=4.706

mass O₂ = 120 g

mol O₂(MW=32 g/mol) :

\tt \dfrac{120}{32}=3.75

Mol ratio of reactants(to find limiting reatants) :

\tt \dfrac{4.706}{4}\div \dfrac{3.75}{5}=1.1765\div 0.75\rightarrow O_2~limiting~reactant(smaller~ratio)

mol of H₂O based on O₂ as limiting reactants :

mol H₂O :

\tt \dfrac{6}{5}\times 3.75=4.5

mass H₂O :

4.5 x 18 g/mol = 81 g

The percent yield :

\tt \%yield=\dfrac{actual}{theoretical}\times 100\%\\\\\%yield=\dfrac{72.2}{81}\times 100\%=89.14\%

6 0
3 years ago
What is the answer slam sms
Musya8 [376]
The answer is C
wood isn't a conductor but metal is


4 0
3 years ago
Read 2 more answers
Other questions:
  • Consider a solution that contains 60.0% r isomer and 40.0% s isomer. if the observed specific rotation of the mixture is –43.0°,
    5·1 answer
  • A sample of vinegar has a pH of 5, and a sample of rainwater has a pH of 6. Which of the following statements best describes the
    13·2 answers
  • Which of the following combines with harmful gases to create air pollution?
    11·1 answer
  • Agree or disagree? Explain (2 ideas, 2 examples)
    15·1 answer
  • Can our bodies produce salt also is it possible to use our body oil to cook
    13·1 answer
  • Gold atoms can be identified based on the number of which subatomic particles?
    12·2 answers
  • Someone sprays perfume in another room. It can be smelled a few minutes later.
    9·2 answers
  • I JUST NEED HELP!!!!
    15·1 answer
  • Is this answer right ?
    10·2 answers
  • How many moles of phosphoric acid would be needed to produce 15 grams of water?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!