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gulaghasi [49]
2 years ago
15

Mandy made the following table describing the conditions required to form sleet and snow, but left something out. Which word sho

uld replace the X in the left column?
Temperature in the cloud Below freezing Below freezing

Temperature X Above freezing Below freezing

State of water Mix of solid and liquid Solid
above cloud

below cloud

on the ground

in the soil​
Chemistry
1 answer:
MakcuM [25]2 years ago
7 0

I am not the best at this, but im pretty sure its below cloud

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What is the pH of a 4.7 x 10-9 M HCl solution? *
ValentinkaMS [17]
11.21 or 2.93 I think
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3 years ago
In cells, the role of the mitochondrion is to:
denis-greek [22]

Answer:

D produce energy

Explanation:

Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions.

7 0
2 years ago
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A student performs the reduction of 4-nitrobenzaldehyde (151.12 g/mol) with sodium borohydride (37.83 g/mol) in the presence of
Leviafan [203]

Answer:

65.4%

Explanation:

The redox reaction is a 1:1:1 reaction because the reagents suffer a double displacement reaction, and the substance that is substituted have the same charge (H+ and Br-), thus, we first need to know which of the reagents is the limiting.

Let's test the 4-nitrobenzaldehyde as the limiting. The mass needed for sodium borohydride (m) is the mass given of 4-nitrobenzaldehyde multiplied by the stoichiometric mass of sodium borohydride divided by the stoichiometric mass of 4-nitrobenzaldehyde. The stoichiometric mass is the number of moles in the stoichiometric representation (1:1:1) multiplied by the molar mass, so:

m = (4.13 * 37.83*1)/(151.12*1)

m = 1.034 g

So, the mass needed of the other reagent is larger than the mass that was given, so, it will be the limiting, and the stoichiometric calculus must be done with it.

The mass of the product that was expected is then:

m = (0.700*153.14*1)/(37.83*1)

m = 2.83 g

The percent yield is the mass that was formed divided by the expected mass, and then multiplied by 100%:

%yield = (1.85/2.83)*100%

%yield = 65.4%

8 0
3 years ago
How many molecules are in 3.5 moles of water? Fill in the chart to show your work. Then, solve the problem and answer the questi
MariettaO [177]

Answer:

There are 6.022 * 10(23 as a power) water molecules.

Explanation:

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Hope it helps!

8 0
3 years ago
Select all the correct answers.
larisa86 [58]

<em><u>I believe that the answer are 3, 4, and possibly 5 </u></em>because the 1st question says, ''Where on earth''. It should have been, ''When on Earth''. The others make sense because the scientist or your teacher can test it. Their has to be evidence to support it.

#1 can't be tested because it was in the last decade (which was 10 years ago). Also, it says in #1 that, Where on Earth had a population decrease.

Hope this helps... :)

-Justin0208

3 0
3 years ago
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