Answer:
The correct option is B.
Explanation:
Ionic bond are usually formed between a metal and a non metal. The metal usually acts as the electron donor while the non metal acts as the electron acceptor, that is, the metal give away electrons while the non metal accept the electrons. In the options given in this question, it is only the pairs in option B, that is qualify for ionic bond, this is because it consist of a metal and a non metal.
48.60g Mg x (1 mol Mg /24.3g Mg) x (6.02x10^23) = 1.20x10^24
Answer:
B
Explanation:
She is unsure of which soil would allow the flowers to grow best so the soil that allows the flower to grow the most is the best soil.
Answer: 2232 torr
Explanation:
Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.
The combined gas equation is,
where,
= initial pressure of gas = 750 torr
= final pressure of gas = ?
= initial volume of gas = 36.0 L
= final volume of gas = 15.0 L
= initial temperature of gas =
= final temperature of gas =
Now put all the given values in the above equation, we get:
The pressure will be 2232 torr if the volume changes to 15.0 L and the temperature changes to 78 °C, if the amount of gas stays the same.