2 years ago

A biologist explored a remote island and discovered a new living organism. After several observations were made of the

Chemistry

1 answer:

IrinaK [193]2 years ago

6 0

D) The organism was able to transport water through specialized veins

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Which of the following will have the slowest rate of diffusion at a given temperature?

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So diffusion is inversely proportional to mass !
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3 years ago

Consider the following reaction

Fynjy0 [20]

Answer:

92.72 kJ

Explanation:

2 N₂ (g) + O₂ (g) —-> 2 N₂O

According to question , one mole of N₂O requires 163.2 kJ of heat

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25 g N₂O = 25 / 44 mole

25 / 44 mole will require 163.2 x 25 / 44 kJ

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2 years ago

as 100 milliliters of 0.10 molar KOH is added to 100 milliliters of 0.10 molar HCL at 298 K, the pH of the res?A. decrease to 3B

Mila [183]

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C. increase to 7.

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

$KOH+HCl\rightarrow KCl+H_2O$

Thus, the molar relationship is 1 to 1, therefore, the moles are:

$n_{HCl}=0.1mol/L*0.1L=0.01molHCl\\n_{KOH}=0.1mol/L*0.1L=0.01molKOH\\$

Thus, since the entire hydrogen ions are neutralized, the pH C. increase to 7.

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2 years ago

Sodium atoms differ from sodium ions in that sodium atom contains

Olenka [21]

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sodium atom is neutral while sodium ion is a charged specie with a charge of +1

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2 years ago

How is a forest fire considered a chemical change?

MArishka [77]

A forest fire is considered a chemical change because of the changing of the wood by combustion, which is not a physical change.

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3 years ago

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