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Sergeeva-Olga [200]
3 years ago
7

Solids , liquids are the three different states of matter However , they show some similarities of their properties

Chemistry
1 answer:
frozen [14]3 years ago
6 0

Answer:

1 may is the answer for the question

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2 years ago
Examples s name of thosse food items we can store for a month?​
choli [55]

Answer:

1. Nuts

2. Canned meats and seafood

3. Dried grains

4. Dark chocolate

5. Protein powders

3 0
3 years ago
Empirical formula of a compound is CH3. If the molar mass of the
Nonamiya [84]

Answer:

Explanation:

                             HERE WE TAKE CH3,

                      C = 1 × 12 = 12g

                      <u> H₃= 3 × 1  = + 3g</u>

                          CH3       =15 g ans  

7 0
3 years ago
A common laboratory reaction is the neutralization of an acid with a base. When 31.8 mL of 0.500 M HCl at 25.0°C is added to 68.
lord [1]

Answer:

The correct answer to the following question will be "90.6 kJ/mol".

Explanation:

The total reactant solution will be:

(31.8 \ mL+68.9 \ mL)\times 1.07\ g/mL = 107.74 \ g

The produced energy will be:

=4.18 \ J/(gK)\times 107.74 \ g\times (28.2-25.0)K

=450.35\times 3.2

=1441.12 \ J

The reaction will be:

⇒  HCl+NaOH \rightarrow NaCl+H_{2}O

Going to look at just the amounts of reactions with the same concentrations, we notice that they're really comparable.  

Therefore, the moles generated by NaCl will indeed be:

=  (\frac{31.8}{1000} \ L)\times (0.500 \ M \ HCl/L)\times \frac{1 \ mol \ NaCl}{1 \ mol \ HCl}

=  0.0318\times 0.500

=  0.0159 \ mole  \ of \ NaCl

Now,

=  \frac{1441.12 \ J}{0.0159 \ moles \ NaCl}

=  906364.7

=  90.6 \ KJ/mol \ NaCl

7 0
3 years ago
What is not true of a strong base? A. It must have a concentration above 1.0 M. B. It is always a strong electrolyte in water. C
Rashid [163]
The choices are true about the characteristic of a strong base, except for it having a concentration of above 1.0 M. Therefore, the answer is letter A. The concentration of the base is not a very important as to how strong really the base is. 
4 0
3 years ago
Read 2 more answers
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