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Minchanka [31]
3 years ago
15

The purpose of an indicator is to

Chemistry
2 answers:
Grace [21]3 years ago
8 0

Chemical indicators are used to identify when a reaction has undergone a chemical change or if it has reached completion.

Korvikt [17]3 years ago
8 0

Test and determine the pH values of unknown solutions


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aleksley [76]

Answer:

yes water boils at 100 degree Celsius but the boiling point water is different at different place because of the altitude of that place. For example boiling point of water is 96 decree Celsius.

No the 2 solutions don't boils at same time. it's because of their volume.

if the volume is more then it takes more time to boli. and vice versa

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3 years ago
Which process is a chemical change?
Vinvika [58]
A. is the correct answer.
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A 3.00 L flexible container holds a sample of hydrogen gas at 153 kPa. If the pressure increases to 203 kPa and the temperature
dybincka [34]

To solve this we assume that the gas is an ideal gas. Then, we can use the ideal gas equation which is expressed as PV = nRT. At a constant temperature and number of moles of the gas the product of PV is equal to some constant. At another set of condition of temperature, the constant is still the same. Calculations are as follows:

 

P1V1 =P2V2

V2 = P1 V1 / P2

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<span>V2 = 2.26 L</span>

3 0
2 years ago
Ca(OH)2 + HCl CaCl2 + H2O Choose the acidic and basic radical a) H,O b) Ca,H c) Cl,O d) Ca,Cl​
Snowcat [4.5K]

Answer:

Answer is Option A

Explanation:

it's the correct answer

5 0
3 years ago
What is the process of gas changes to a solid
igor_vitrenko [27]

Answer:

Deposition is the phase transition in which gas transforms into solid

Explanation:

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