2 years ago

What is one way to test whether an unknown solution is acidic or basic

1 answer:

4 0

A solution's pH will be a number between 0 and 14. A solution with a pH of 7 is classified as neutral. If the pH is lower than 7, the solution is acidic. When pH is higher than 7, the solution is basic. These numbers describe the concentration of hydrogen ions in the solution and increase on a negative logarithmic scale. For example, If Solution A has a pH of 3 and Solution B has a pH of 1, then Solution B has 100 times as many hydrogen ions than A and is therefore 100 times more acidic.

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What happens to the entropy in the reaction I^2(s) ►I^2(g)?

swat32

Answer:

D. Entropy increases in the reaction.

Explanation:

Entropy is the degree of randomness in a system. In the reaction given we go from a solid to a gas, therefore there is an increase in the randomness. This means there is an increase in entropy.

6 0

2 years ago

In a butane lighter 9.8g of butane combines with 35.1g of oxygen to form 29.6g carbon dioxide and how many grams of water

german

If the reacted oxygen is 35.1 g.
H2O mass= (35.1+9.8)-29.6
= 19.3g

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2 years ago

What is the phase change in which<br> a substance changes from a gas to<br> liquid?<br> a

Irina-Kira [14]

Answer:

Usually the answer to this kind of question would be Condensation

Explanation: