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damaskus [11]
2 years ago
11

Fill in the blank

Chemistry
1 answer:
Elena-2011 [213]2 years ago
7 0

Answer:

1. plasma; 2. qualitative; 3. matter;

Explanation:

<em><u>PLASMA </u></em>is a gaseous state of matter that contains appreciable numbers of electrically charged particles.

Diamond is harder than graphite. This is a <em><u>QUALITATIVE </u></em>observation.

Chemistry is defined as the study of <em><u>MATTER</u></em>.

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erastova [34]
  
<span>As we know that
1 cu cm H2O = 1 mL H2O = 1g H2O 
now

Heat of fusion of water = 79.8 cal/g 
and

Heat of vaporization of water = 540 cal/g 

Atomic weight of water : H=1 O=16 H2O=18 
now by calculating and putting values

65.5gH2O x 79.8cal/gH2O x 1gH2O/540cal = 9.68g H2O (steam) 

9.68gH2O x 1molH2O/18gH2O x 22.4LH2O/1molH2O = 12.0 L H2O
hope it helps</span>
3 0
3 years ago
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Which of the following would be SI unit to use in measuring the temperature of hot liquid
Vinil7 [7]

The unit is the Kelvin, but most of the time 273 is subtracted from the Kelvin temperature and the new number is called "degrees Celsius".

4 0
3 years ago
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Which of the following pairs consists of a weak acid and a strong base? (1 point)
notka56 [123]

Answer:

acetic acid, sodium hydroxide

Explanation:

A strong acid is an acid that ionizes in water to give all its hydrogen ion. Weak acid only ionize to a certain degree. Acetic acid (CH3COOH) only ionize to give one hydrogen ion despite having other hydrogen atom. This account for its weak nature as an acid as shown below:

CH3COOH <=> H^+ + CH3COO^-

A strong base is a base that ionizes in water to give all it hydroxide ion. Sodium hydroxide(NaOH) ionizes to give all its hydroxide ions. This make it a strong base as shown below;

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8 0
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3

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