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2 years ago

How many moles are in 63 grams of water (H2O)?

Chemistry

1 answer:

sweet-ann [11.9K]2 years ago

8 0

Answer: 3.496 mol of H2O

Explanation:

63 g H2O x __1 mol__ = 3.496 mol of H2O

18.016 g

Round to however many significant figures are asked for.

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NH4Cl + AgNO3 → AgCl + NH4NO3

iVinArrow [24]

It's a balanced equation!
This is a precipitation reaction.
AgCl is the formed precipitate.

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1 year ago

In which of the following cases will the LEAST time be required to arrive at equilibrium? K below refers to the equilibrium cons

mylen [45]

Answer: Option (4) is the correct answer.

Explanation:

It is known that equilibrium constant is represented as follows for any general reaction.

$A + B \rightarrow C + D$

K = $\frac{[C][D]}{[A][B]}$

As equilibrium constant is directly proportional to the concentration of products so more is the value of equilibrium constant more will be the number of products formed.

As a result, more is the time taken by the reaction to reach towards equilibrium. Whereas smaller is the value of equilibrium constant more rapidly it will reach towards the equilibrium.

Thus, we can conclude that cases where K is a very small number will require the LEAST time to arrive at equilibrium.

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2 years ago

ʕ•ᴥ•ʔ Which type of reaction occurs between an acid and a base and results in the formation of a salt and water? ʕ•ᴥ•ʔ

Nataliya [291]

The answer would be D. because when an acid and base mix the start to cancel each other out causing it to neutralize

3 0

3 years ago

Read 2 more answers

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AnnyKZ [126]

Answer:

Already answered brainly.com/question/845321563

Explanation:

8 0

2 years ago

Given any two elements within a group, is the element with the larger atomic number likely to have a larger or smaller atomic ra

zhenek [66]

Answer:

Atomic radius of sodium = 227 pm

Atomic radius of potassium = 280 pm

Explanation:

Atomic radii trend along group:

As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

Consider the example of sodium and potassium.

Sodium is present above the potassium with in same group i.e, group one.

The atomic number of sodium is 11 and potassium 19.

So potassium will have larger atomic radius as compared to sodium.

Atomic radius of sodium = 227 pm

Atomic radius of potassium = 280 pm

3 0

3 years ago