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likoan [24]
3 years ago
11

HEELP PLEASE Any change that alters a substance without changing it into another substance is a(n)________change.

Chemistry
1 answer:
Trava [24]3 years ago
8 0
Sounds like a physical change.
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Sulfur dioxide is a compound used to preserve grapes. What volume would a 23.8 g sample of sulfur dioxide take up if it were sto
AVprozaik [17]

Answer:

A . 8.32 L

Explanation:

Got it right on my test lol.

5 0
3 years ago
What is the molarity of solution containing 1.5 mol NaOH and 0.25 kg of water?
sladkih [1.3K]

Answer:

Molarity= 6M

Explanation:

Volume= 0.25L

Applying

n= CV

1.5= C×0.25

C= 6M

8 0
3 years ago
Which non-metal have lustre in the following 1. Iodine 2. Chlorine 3. Carbon 4. Silicon
Taya2010 [7]

Answer:

Iodine

Explanation:

I hope this answer will help you

6 0
3 years ago
Read 2 more answers
The value of the equilibrium constant K depends on: I. the initial concentrations of the reactants. II. the initial concentratio
Elden [556K]

Answer:

None of these

Explanation:

For a reaction;

aA + bB ------>cC + dD

The equilibrium constant K is given as;

K = [C]^c [D]^d/[A]^a [B]^b

The equilibrium constant neither depends on the concentrations of the reactants nor on that of the products.

Let us recall that at equilibrium, the concentrations of reactants and products remain largely constant. This implies that, concentration of species do not appreciably change at equilibrium because the rates of forward and reverse reactions are equal.

Hence, the equilibrium constant neither depends on the initial/final concentrations of the reactants nor on the initial/final concentrations of the products.

4 0
3 years ago
1.
fgiga [73]

Answer:

THE PRESSURE OF THE TIRE ON THE TRIP HOME AT THE ROAD SURFACE TEMPERATURE OF 32°C IS 160 kPa.

Explanation:

Initial Pressure = 75 kPa

Initial temperature = 15 °C

Final temperature = 32 °C

Final pressure = unknown

Using the combined equation of gases;

P1V1/T1 = P2V2/ T2

Since the tire will have the same volume of air in it showing that volume of constant both at the repair shop and on the road surface.

The relationship between pressure and temperature is used with constant volume.

P1/T1 = P2/ T2

75 kPa / 15 °C = P2 / 32 °C

P2 = 75 kPa * 32 °C / 15 °C

P2 = 2400 kPa °C / 15 °C

P2 = 160 kPa.

So therefore, the pressure of the tire on the trip home when the temperature of the road surface is 32°C is 160 kPa.

5 0
4 years ago
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