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Olegator [25]
2 years ago
6

According to the big bang theory, which statement is accurate about how the universe came to be?

Chemistry
1 answer:
Lady bird [3.3K]2 years ago
8 0

Answer:

Stars and Galaxies formed

Explanation:

I'm pretty sure that this is the answer

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The rate of decomposition of acetaldehyde, CH_3 CHO(g), into CH_4(g) and CO(g) in the presence of I_2(g) at 800 K follows the ra
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Answer:

Explanation:

Catalyst is I2 . Because I2 is reacted with starting material in step 1 and generated in second step

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Question 8 Saved Which of the following energy transformations occurs when you eat a hamburger? Question 8 options: The chemical
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The flame in a torch used to cut metal is produced by burning acetylene (C2H2) in pure oxygen. Assuming the combustion of 1 mole
Nookie1986 [14]

Answer:

19.8 kg of C₂H₂ is needed

Explanation:

We solve this by a rule of three:

If 1251 kJ of heat are relased in the combustion of 1 mol of acetylene

95.5×10⁴ kJ of heat may be released by the combustion of

(95.5×10⁴ kJ . 1) /1251kJ = 763.4 moles of C₂H₂

Let's convert the moles to mass → 763.4 mol . 26 g/1 mol = 19848 g

If we convert the mass from g to kg →  19848 g . 1kg / 1000g = 19.8 kg

7 0
3 years ago
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What are prevailing winds?
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D) winds that blow in the same direction at a consistent speed

Explanation:

i took the quiz got it right so i know the answer please trust me i know this is right i promise with all my heart

7 0
3 years ago
How does energy flow through the food chain?
yuradex [85]

Answer:

2nd order.

Explanation:

gras, grasshopper, frog, snake, eagle

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