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svetlana [45]
3 years ago
13

A chemical change always involves...

Chemistry
1 answer:
maw [93]3 years ago
4 0
D- a new substance forming
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Why can water dissolve many substances
leva [86]

Answer:

a substance that can dissolve other molecules and compounds, which are known as solutesBecause of its ability to form hydrogen bonds, , meaning that it can dissolve many different kinds of molecules.

Explanation:

6 0
3 years ago
When aqueous solutions of HCl and NaOH are mixed together in a calorimeter, the temperature of the solution increases. The react
yarga [219]
This reaction is exothermic because the system (the aqueoud solution) is transferring heat to its surroundings (the calorimeter) so this eliminates two responses. Since the heat is being transferred to the surroundings, the water that's in the calorimeter in this case, it is causing the water molecules to heat up and thus an increase in the kinetic energy of the water molecules since temperature affects kinetic energy
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Compound X has a molar mass of 283.89 mol^-1 and the following composition:
olchik [2.2K]

Explanation:

the above process is done in very detail .

hope this is helpful.

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3 years ago
20 cubic inches of a gas with an absolute pressure of 5 psi is compressed until its pressure reaches 10 psi. What's the new volu
belka [17]
10 cubic inches
We will use Boyle's law that states that for a fixed amount of an ideal gas kept at a fixed temperature, pressure and volume are inversely proportional. 
P1 V1 = P2 V2
Where
 P1 is initial pressure = 5 psi
V1 is initial volume = 20 cubic inch
P2 is final pressure = 10 psi
V2 is final volume = unknown
V2 = P1,V1 / P2
V2 = 20 × 5 / 10
V2 = 100/10
V2 = 10 cubic inches


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3 years ago
Which property of metals allows aluminum to be flattened into thin sheets of aluminum foil?
Gnoma [55]

Answer:

malleability

Explanation:

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3 years ago
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