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Liono4ka [1.6K]
3 years ago
12

There are 4 types of biomes. FALSE

Chemistry
2 answers:
Rzqust [24]3 years ago
6 0
False there are actually 5 types of biomes
a_sh-v [17]3 years ago
6 0

There are four types of biomes. Just took this quiz on e2020. environmental science.

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2al2o3 4al 3o2 what is the mole ra#tio of aluminum to oxygen is 4:3
erik [133]
In the reaction represented by the equation 2Al2O3-->4Al+3O2, what is the mole ratio of aluminum to oxygen?

4:3

8 0
3 years ago
If 8.500 g CH is burned and the heat produced from the burning is added to 5691 g of water at 21 °C, what is the final
mojhsa [17]

The final temperature = 36 °C

<h3>Further explanation</h3>

The balanced combustion reaction for C₆H₆

2C₆H₆(l)+15O₂(g)⇒ 12CO₂(g)+6H₂O(l)  +6542 kJ

MW C₆H₆ : 78.11 g/mol

mol C₆H₆ :

\tt \dfrac{8.5}{78.11}=0.109

Heat released for 2 mol C₆H₆ =6542 kJ, so for 1 mol

\tt \dfrac{0.109}{2}\times 6542=356.539~kJ/mol

Heat transferred to water :

Q=m.c.ΔT

\tt 356.539=5.691~kg\times 4.18~kj/kg^oC\times (t_2-21)\\\\t_2-21=15\rightarrow t_2=36^oC

3 0
3 years ago
What do you already know about the role of water within your body?
Fudgin [204]

Answer:

it helps us with our blood (Little)

7 0
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Describe the heart and it’s function
AnnZ [28]

Answer:

The human heart is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes.

Explanation:

Hope this helped! Good luck on whatever it is you're working on!

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Yurr wussup can someone help me with my questions on for science if nayones down put in the cmts . :)
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Sure

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