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ahrayia [7]
3 years ago
12

In a ________ change, such as a change of state, the substance as a whole changes, but its underlying structure remain the same.

Chemistry
1 answer:
pav-90 [236]3 years ago
4 0

Answer:

Im pretty sure it is chemical change

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calculate the water potential of a solution of 0.15m sucrose. the solution is at standard temperature.
Mrac [35]

Answer:

The water potential of a solution of 0.15 M sucrose solution is -3.406 bar.

Explanation:

Water potential = Pressure potential + solute potential

P_w=P_p+P_s

P_w=P_p+(-iCRT)

We have :

C = 0.15 M, T = 273.15 K

i = 1

The water potential of a solution of 0.15 m sucrose= P_w

P_p=0 bar (At standard temperature)

P_s=-iCRT=-\times 1\times 8.314\times 10^{-2}bar L/mol K\times 273.15 K=-3.406 bar

P_w=0 bar+(-3.406 ) bar

The water potential of a solution of 0.15 M sucrose solution is -3.406 bar.

7 0
3 years ago
If a helium filled ballon has a volume of 3.4l at 25°c and 1.18atm., what is its volume at STP?​
vladimir2022 [97]

Answer:

3.711 L

Explanation:

The formula you need to use is the following:

\frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}\\

3.4L / 298 K = V2 / 273 K

V2 = 3.711 L

5 0
3 years ago
The formation of a gas in a chemical reaction, due to ions changing places, often indicates that the reaction is which type?
Gelneren [198K]
A single-displacement reaction, also known as asingle-replacement reaction, is a type of chemicalreaction<span> where an element reacts with a compound and takes the place of another element in that compound. This type of </span>reaction<span> is typically pictured like this: Here, A replaces B in the compound BC.</span>
6 0
3 years ago
Read 2 more answers
Which force saves the atom by emitting particles from the nucleus
mash [69]

Answer:

nuclear force

Explanation:

3 0
3 years ago
7 Which phrase describes the molecular structure and properties of two solid forms of carbon, diamond and graphite?(1) the same
kirza4 [7]
2) is the answer. graphite and diamonds possess the same molecular structes however the bonds and structures of diamonds are considerably stronger and more tightly packed respectively
8 0
3 years ago
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