Calculate the temperature of a gas when it is expanded to 5.25L. The gas originally occupies 3.45L of spave at 282K.

Which of the following is a ectothermic vertebrate a. butterfly b. lizard c. eagle d. dog

Which actions would increase the rate at salt dissolves in water □ stir the water □ crush the salt □ use less water □ heat the water □cool the salt

Which statement about surfactant molecules is correct? A) The head is hydrophilic and the tail is lipophilic. B) The head is lipophilic and the tail is hydrophilic. C) The head and tail are both hydrophilic D) The head and tail are both lipophilic.

A student mixes baking soda and vinegar in a glass. Are there any new substances created from this mixture?

What evidence from today's experiment supports the idea that exhaled air contains more co2 than room air

Explain why a balloon filled with O2 at room temperature collapses when cooled in liquid nitrogen where as balloon filled with He does not

Which mixture can be separated by using the equipment shown below?

El agua de Mar es una mezcla homogenea o disolucion Y El agua corriente Y El aire Y LA lejia Y Los refrescos con gas Y El suero fisiologico Y Las monedas Y LA leche Y LA gelatina Y Los productos de higiene Y El merengue

The component which dissolves in a solution is called the ...

If this fossil is 65 million years old, what could this fossil suggest about organisms alive today? A. If it is similar to any two modern species, it could be a common ancestor of these species. B.