3 years ago

Which statement correctly describes extreme weather?

Chemistry

1 answer:

sveta [45]3 years ago

5 0

Answer: A

Explanation:

Extreme weather events follow normal climate patterns.

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Construct a flow chart to demonstrate how you could separate a mixture of 1,4- dichlorobenzene, 4-chlorobenzoic acid, and 4-chlo

notsponge [240]

Hey there!:

Attached response

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4 years ago

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When NH3(g) reacts with O2(g), the products of the combustion are NO(g) and H2O(g). What volume of O2(g) is required to react wi

arlik [135]

Answer: The volume of oxygen gas required is 3.75 mL

Explanation:

STP conditions:

1 mole of a gas occupies 22.4 L of volume.

We are given:

Volume of ammonia reacted = 3.00 mL = 0.003 L (Conversion factor: 1 L = 1000 mL)

The chemical equation for the reaction of ammonia with oxygen follows:

$4NH_3(g)+5O_2\rightarrow 4NO(g)+6H_2O(g)$

By Stoichiometry of the reaction:

(4 × 22.4) L of ammonia reacts with (5 × 22.4) L of oxygen gas

So, 0.003 L of ammonia will react with = $\frac{(5\times 22.4)}{(4\times 22.4)}\times 0.003=0.00375L=3.75mL$ of oxygen gas

Hence, the volume of oxygen gas required is 3.75 mL

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3 years ago

10 POINTS

Snowcat [4.5K]

E=hc/λ =6.626×10^-34×3 ×10^8 / 3×10^7 × 10^-9 = 6.626×10 ^-24J.

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3 years ago

3.00 moles of gas are pumped into a 1.00L rigid container with a pressure of 1.98 atm. The gas is released from the container un

guajiro [1.7K]

Answer:

1.18 moles of gas

Explanation:

3.00 moles of gas are pumped into a 1.00L rigid container with a pressure of 1.98 atm. The gas is released from the container until the pressure is 0.78 atm, how many moles of gas remain in the container?

for the sealed rigid container, the pressure is directly proportional to the amount of gas

3.00moles/1.98 atm = ? moles/0.78 atm

? = 3.00 X 0.78/1.98 =1.18 moles of gas

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3 years ago

Which is a perfect square? 6’1 6’2 6’3 6’5

natta225 [31]

Answer:

6^3 I believe.

Explanation:

If it's wrong it may be 6^2 because you should square it, but I think it's 6^3

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4 years ago