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ycow [4]
3 years ago
14

NaOH + HCl → NaCl + H2O

Chemistry
1 answer:
bearhunter [10]3 years ago
7 0

Answer:

0.00496 g H2O

Explanation:

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The oythagorean theroem
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What must occur in order for a chemical reaction to be specifically classified as endothermic instead of exothermic?
Alla [95]

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Explanation: I hoped that helped !

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What happens when magnesium reacts with dilute acid?
iogann1982 [59]

The magnesium dissolves to form magnesium chloride and hydrogen gas is released.

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Phosphorus-32 is radioactive and has a half life of 14.3 days. What percentage of a sample would be left after 12.6 days
nadya68 [22]

Answer:

There is 54.29 % sample left after 12.6 days

Explanation:

Step 1: Data given

Half life time = 14.3 days

Time left = 12.6 days

Suppose the original amount is 100.00 grams

Step 2: Calculate the percentage left

X = 100 / 2^n

⇒ with X = The amount of sample after 12.6 days

⇒ with n = (time passed / half-life time) = (12.6/14.3)

X = 100 / 2^(12.6/14.3)

X = 54.29

There is 54.29 % sample left after 12.6 days

8 0
2 years ago
The attractions that allow molecules of krypton to exist in the solid phase are due to:
OLga [1]

Answer:

4) Van der waals forces

Explanation:

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Intermolecular forces of attraction from the strongest to the weakest include:

Ionic > hydrogen bonding > dipole-dipole > london dispersion

Kr is monoatomic and non-polar. When fully filled (stable) valence orbitals of 2 Kr atoms approach each other in close proximity they experience a repulsive force which prevents the formation of strong bonds. Thus, the only force of attraction in Kr is the long range weak Van Der Waals force also known as the london dispersion force.

7 0
3 years ago
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