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iren2701 [21]
3 years ago
10

Which of the following does NOT involve a physical change?

Chemistry
1 answer:
jasenka [17]3 years ago
4 0

Answer:mixing decomposing

Explanation:

Melting and grinding changes the physical form and mixing decomposing doesn’t

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What mass of barium chloride, BaCL2, is required to completely precipitate the barium sulfate from 35.0 ml of 0.200 m h2so4?
faltersainse [42]
The balanced equation would be (1)BaCl2 + (1)H2SO4 --> (1)BaSO4 + (2)HCl2
Then you should know that the coefficients stand for moles.
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3 years ago
A balloon inflated in a room at 25oC has a volume of 3.00 L. If the balloon is heated at a constant pressure, at what temperatur
Alexeev081 [22]

Answer:

596K

Explanation:

Using Charles law equation;

V1/T1 = V2/T2

Where;

V1 = initial volume (L)

V2 = final volume (L)

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T2 = final temperature (K)

According to the information provided in this question,

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Cross multiply

298 × 6 = 3 × T2

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8 0
3 years ago
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Kobotan [32]

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8 0
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