The correct answer among the choices given above is the last option. When an acid reacts with an active metal, hydrogen gas is produced. The hydrogen in acid is displaced by the metal yielding hydrogen gas.
Mg + 2HCl = MgCl2 + H2
Kilograms and grams. They're both commonly used to measure mass.
Answer:
The battery of a phone contains stores chemical energy. This energy is converted into electrical energy primarily when the phone is turned on. The chemical energy is also converted into light energy, sound energy and heat energy. With the passage of time, the energy will be changed back into the chemical energy when we will charge the phone again.
Answer:
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Explanation:
The given data is as follows.
= 1.50 L,
= 159 K,
= 5.00 atm,
= 0.2 L,
= ?,
= 50.0 atm
And, according to ideal gas equation,
Hence, putting the given values into the above formula to calculate the value of final temperature as follows.
= 21.27 K
Thus, we can conclude that the final temperature is 21.27 K
.