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agasfer [191]
2 years ago
15

Someone please help me dont scroll i need help

Chemistry
1 answer:
Diano4ka-milaya [45]2 years ago
8 0
A line that stay s straight across the graph
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How is a pure substance different from other substances?
iren [92.7K]

Answer:

Explanation:

A pure substance is made up solely of that substance and can't be separated into any other substances. A mixture can be separated into two or more pure substances

7 0
3 years ago
The elements lithium and oxygen react explosively to from lithium oxide (Li2O). How much lithium oxide will form if 3.03 mol of
lianna [129]
The reaction equation:
2Li + O → Li₂O

Molar ratio of Li to Li₂O is:
2 : 1
So if 3.03 moles of Li are present:
2/1 = 3.03 / x
x = 1.515 moles of Li₂O will be produced.
7 0
3 years ago
NEED HELP ASAP
Thepotemich [5.8K]

I'll see what I can do here...

1) Nonmetal

2) Calcium (Ca), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table.

3) Hafnium

4) 204.3833 u

5) Not sure what you're asking, but oble gas, any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og)

6) The metalloids; boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te), polonium (Po) and astatine (At)

7) The Actinide series contains elements with atomic numbers 89 to 103 and is the third group in the periodic table.

8) 33

9) 88

10) 30

Hope this helps!

8 0
3 years ago
Read 2 more answers
The community of a pond is made up of all the...
madam [21]
The surrounding ecosystem in and around the water
3 0
3 years ago
Which of the following is an accurate example of how the water cycle can influence local weather? A. An increase in evaporation
irina1246 [14]

The answer is; A

During a hot day, the land heats up faster than the waters. The air on land becomes warm and less dense fast and begin to rise in the atmosphere. The air on the ocean with is still cooler and denser moves in to replace the rising on land air. This causes a sea breeze. The sea breeze carries with it, moisture. The hotter the day the higher the humidity. When the air goes inland, it causes precipitation when it rises,  cool, and condenses.


3 0
3 years ago
Read 2 more answers
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