CHEMISTRY HIGH SCHOOL

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Answers

Answer 1
Answer:

Answer: The pH of the solution is 13.

Explanation:

pOH is defined as the negative logarithm of hydroxide ion concentration present in the solution.

pOH=-\log [OH^-]

We are given:

Concentration of Ca(OH)_2=0.05mol/dm^3=0.5mol/L          (Conversion factor: 1L = 1dm^3 )

1 mole of calcium hydroxide produces 1 mole of calcium ions and 2 moles of hydroxide ions

Concentration of OH^-=(2* 0.05)=0.1mol/L

Putting values in above equation, we get:

pOH=-\log (0.1)\n\npOH=1

We know:

pH+pOH=14\n\npH=14-1\n\npH=13

Hence, the pH of the solution is 13.

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The usual units of density are :
cm3/ g
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Answers

The usual units of density are g/cm.

You may have also seen g/mL used for density. Keep in mind that 1 cm = 1 mL.

g/cm^3

To answer directly its g/cm with the little three on top.

:)

WILL GIVE BRAINLEST!!Question 5
Coastal flooding occurs when_

A. Rocks or debris block rivers causing them to overflow

B. Severe weather occurs causing large waves to hit the coast

C. Huge amounts of snow and ice melt due to sudden temperature variations

D. Colossal amounts of rain fall in a short period of time​

Answers

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The point at which a substance is at complete equilibrium is called? User: a hydrogen bond is a special form of what type of bond

Answers

I don't know what the answer to your first question is. All of my teachers have only called it the equilibrium point.  However for your second question, a hydrogen bond is a special type of dipole-dipole attraction.  Only oxygen, nitrogen, and fluorine are able to make them when bonded with hydrogen.  Hydrogen bonding is what makes water have such a high boiling point considering how light the molecule is.

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Answers

Answer:

OBSERVING AND QUESTIONING

Explanation:

when you use the scienfic method the first thing you have to do is question you theory and coming up with a hypothesis which is what you expect to happen

Answer:

make an observation

Explanation:

Don’t understand this science Question.

Answers

What is the question?

Answer:

I got you..you need help but with which question?

Explanation:

Have a great day!

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Answers

Answer: With a positively charged nucleus.

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