? Question Аа
Which statements about oxygen and nitrogen are true?
Select all the correct answers.
Hola
They are both normally found as gases in the atmosphere.
They can be either liquids or gases.
They turn from gas to liquid at the same temperature.
They can be changed from gases to liquids by heating them.
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Answerit curves up and levels out.explanationwe assume that the container contains absolutely no ammonia to begin with as it states that "nitrogen gas and hydrogen gas" react to "produce ammonia."at dynamic equilibrium, the product and reactant concentrations are equal.this means that, starting from a concentration of zero, [nh₃] must curve "up" from zero and then level out to a constant concentration.

Ithink carbon dioxide, i am not completely sure.tell me if i am wrong.

Answer the molar mass of magnesium is 24.305g/mol.

The population of unionid mussels decreased after zebra mussels were introduced. zebra mussels competed with the unionid mussels for food. the zebra mussels were able to displace the unionid mussels, allowing the zebra mussel population to increase  over the years. the unionid mussel population decreased because  of lack of food.