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ikadub [295]
3 years ago
8

Pls hellpppppp!!!!!!!!!!!!!!!!

Chemistry
2 answers:
Musya8 [376]3 years ago
5 0

Answer:

→ I am sorry i do not see the question, you are able to edit the answer to add the answer . (i hope youHave a great day or night!!! :)))).

sleet_krkn [62]3 years ago
3 0

Answer:

what is it I don't see anything

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Why does platinum metal make a good catalytic surface for reactant molecules?
d1i1m1o1n [39]

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it holds reactant molecules in a good position for then to react

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3 years ago
ITS TIMED ANSWER QUICKLY PLSSS!!Which spheres of Earth are directly influenced when human-caused air pollution leads to acid rai
bagirrra123 [75]
<h3>Answer:</h3>
  • Atmosphere
  • Geosphere
  • Hydrosphere
<h3>Explanation:</h3>
  • Humans impact the spheres of the earth negatively through pollution and deposition of waste products from industries and factories.
  • The release of waste gases from factories and chemical industries pollutes the atmosphere which is composed of the gases used by animals and plants.
  • Waste products and toxic materials from factories that are released to rivers, oceans, and lakes affect the hydrosphere by destroying the aquatic organisms.
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3 years ago
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Calculate the net force on the object below.
Anastaziya [24]

Answer:

first we add the same direction. 12N + 32 N=44N .

then we add the forces. 54 up + 44N down= 10N up

8 0
3 years ago
A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over the next fe
Agata [3.3K]

Answer:

not goin to be rude but I don't even get the question??

5 0
3 years ago
How many hydrogen molecules are in 1.2 moles of hydrogen?
nalin [4]

Answer:

7.22 x 10²³molecules

Explanation:

Given parameters:

Number of moles of hydrogen  = 1.2moles

Unknown:

Number of molecules of hydrogen  = ?

Solution:

From the concept of moles, a mole of a substance contains the Avogadro's number of particles.

       1 mole of a substance  = 6.02 x 10²³ molecules;

So;  1.2 moles of hydrogen  = 1.2 x  6.02 x 10²³ molecules;

                                               = 7.22 x 10²³molecules

6 0
3 years ago
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