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Lubov Fominskaja [6]
3 years ago
12

Jkjkjkjkjkjkjkjkjkjkkkkkkkkk

Chemistry
2 answers:
musickatia [10]3 years ago
6 0
What does this mean!!!!!!!!
Hunter-Best [27]3 years ago
4 0
Hahahahahahahahah that was funny
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A pure compound is found to be 40.0% carbon by mass, 6.73% hydrogen by mass, and 53.3% oxygen by mass. determine the empirical f
ratelena [41]
Since there is no weight, I would assume that this is a 100g of pure compound.
Okay so I would be changing the percentage to gram to solve for the mole.
So
40.0g C (1 mol C/12.01 g C) = 3.33 mol C
6.73g H (1 mol H/1.01 g H ) = 6.66 mol H
53.3g O (1 mol O/16.00 g O) = 3.33 mol O

With that, two of our moles is 3.33, so we consider that are our 1, as it is also the lowest. Therefore the empirical formula is CH2O
3 0
3 years ago
What is reduction potential?​
Shtirlitz [24]

Answer:

A reduction potential measures the tendency of a molecule to be reduced by taking up new electrons. ... Standard reduction potentials can be useful in determining the directionality of a reaction. The reduction potential of a given species can be considered to be the negative of the oxidation potential.

Explanation:

8 0
3 years ago
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Find the new pressure of 5 L of a gas at STP that is cooled to 250 K and expanded to 6L
UNO [17]
I’m so sorry i have to do this 5L 24
5 0
3 years ago
PLSSS HELPPPPPPPP. I will give brainliest
nasty-shy [4]

Answer:

Ionic bond

Explanation:

Covalent bonds can only form between non-metals and copper is a metal so it would be an ionic bond.

6 0
3 years ago
Aballoon is filled with 3.60 L of H2 gas at STP. If the balloon is
AVprozaik [17]

Answer:

the new volume is 1.49 L

Explanation:

stp is 0 degrees C and 1 atm.

you need to use the combined gas law formula and solve for v2

i converted the C to Kelvin

v2=p1(v1)(t2)/p2(t1)

v2=1atm(3.6L)(283.15K)/2.5atm(273.15K)

v2=1.49

5 0
3 years ago
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