3 years ago

Is iced tea with no ice a homogenuous or a heterogenuous mixture? ...?

1 answer:

3 0

It is a homogeneous mixture because you cannot see the individual components that make up the iced tea (such as the water, the molecules found in the tea leaves, etc.). Iced tea with ice in it is considered a heterogeneous mixture because you can distinguish the tea from the ice.

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When aqueous solutions of Na2SO4 and Pb(NO3)2 are mixed, PbSO4 precipitates. Calculate the mass of PbSO4 formed when 1.25 L of 0

neonofarm [45]

Answer:

The mass of PbSO4 formed 15.163 gram

Explanation:

mole of Pb(NO₃)₂ = 1.25 x 0.05 = 0.0625

mole of Na₂SO₄ = 2 x 0.025 = 0.05

Pb(NO₃)₂ + Na₂SO₄ → PbSO₄ + 2 NaNO₃

( Mole/Stoichiometry ) $\frac{0.0625}{1}$ $\frac{0.05}{1}$

= 0.0625 = 0.05

From (Mole/ Stoichiometry ) we can conclude that Na₂SO₄ is limiting reagent.

Mass of PbSO₄ precipitate = 0.05 x Molecular mass of PbSO₄

= 0.05 x 303.26 g

= 15.163 g

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when washing soda is mixed with lemon juice, bubbles are formed with the evolution of gas. what type of change is it.

aleksandr82 [10.1K]

Answer:

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it is a chemical change since the lemon juice can not be returned to its original form some part of it had been converted to gas form

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During the apollo missions,an astronaut took a golf ball to the moon. He placed it on the moon’s surface and hit the ball with a

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Explanation:

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