An arctic weather balloon is filled with 34.8L of helium gas inside a prep shed. The temperature is inside the shed is11 . C The balloon is then taken outside, where the temperature is -40 c . Calculate the new volume of the balloon. You may assume the pressure on the balloon stays constant at exactly 1 atm . Round your answer to significant 3 digits.

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted

Maya wrote if you step to describe how carbon circulates between the atmosphere and living organisms