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3 years ago

What is the a property of a base

2 answers:

8 0

1 ) Bases conduct an electric current. 
2 ) Bases have Usually no smell (except NH3! ) 
3 ) Bases are substances which will restore the original blue color of the most of the acids

Savatey [412]3 years ago

5 0

Bases have a Ph do gretater than 7
They are bitter in taste
They are soapy texture

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What do we call compounds that will not dissolve in water

denis-greek [22]

Answer:

covalent compounds

Explanation:

8 0

3 years ago

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Using the molarity equation, calculate how many grams of salt you need in order to make 80ml of a 2M solution (MW = 58.44g/mole)

ollegr [7]

Answer:

9.35g

Explanation:

The molarity equation establishes that:

$\textrm{molarity}=\frac{\textrm{moles of solute}}{\textrm{liters of solution}}$

So, we have information about molarity (2M) and volume (80 ml=0.08 l), with that, we can find the moles of solute:

$\textrm{moles of solute}=\textrm{molarity}*\textrm{liters of solution}$

$\textrm{moles of solute}= 0.08 \textrm{ l} *2\textrm{ M} = 0.16 \textrm{ mol}$

The mathematical equation that establishes the relationship between molar weight, mass and moles is:

$\textrm{molar weight}= \frac{\textrm{mass}}{\textrm{moles}}$

$\textrm{MW}= \frac{\textrm{m}}{\textrm{n}}$

We have MW (58.44g/mole) and n (0.16 mol), and we need to find m (grams of salt needed) to solve the problem:

$\textrm{m} = \textrm{MW * n}= 58.44\frac{\textrm{g}}{\textrm{mol}} * 0.16 \textrm{ mol} = 9.35 \textrm{ g}$

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3 years ago

In the analysis of hair and fiber samples, which does a compound comparison microscope allow for that a conventional compound mi

Alex777 [14]

I believe it would be D. Higher magnification

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3 years ago

How many moles of carbon are in the sample? 0.500 1.00 6.00 12.0

DedPeter [7]

The answer is A.) 0.500

6 0

3 years ago

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Hello people ~

pochemuha

Answer:

H²O is dissociated in water into H³O+ (hydronium ions) and OH- (hydroxide) given by;

2H²O <-----> H³O+ + OH-

If you notice initially we have 4 hydrogen atoms and 2 oxygen atoms. And similarly after the reaction we have 4 hydrogen atoms and 2 oxygen atoms.

Ratio of H to O is 4:2

or 2:1

This is very intuitive as we have 2 hydrogen atoms and 1 oxygen atom in a water molecule.

8 0

2 years ago

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