Which of the following is a mixture?

a - milk

b - salt

c - crude petroleum

d - sea water

Select all that apply. Based on the properties that change in a chemical reaction, which are examples of chemical changes? baking a cake burning firewood leaf color from summer to fall shredding paper

Erica is working in the lab. She wants to remove the fine dust particles suspended in a sample of oil. Which method is she most likely to use? A reverse osmosis B osmosis C filtration D dilution

A balloon contains 1.00 mol helium gas at STP. What will the volume of the balloon be if the pressure increases to 2.00 atm? 11.2 A syringe contains 0.10 mol neon gas at STP. What volume does the syringe indicate? 2.24 A chemist adds 0.

If 4.1 L of gas at 22 degrees celsius is heated to 52 degrees celsius, what would the final volume be?

According to the experiments of Ernest Rutherford, where can a majority of a given atom's mass be found?

7. If you fill a balloon with 5.2 moles of gas and it creates a balloon with a volume of 23.5 liters, how many moles are in a balloon at the same temperature and pressure that has a volume of 14.9 liters

Which compound is formed from its elements by an exothermic reaction at 298 K and 101.3 kPa?

State one major difference between having a nitrogen atom in a ring structure and having an oxygen atom in that structure

Can dowels be chopsticks, since both of them are wood?

Which electron configuration represents the electrons in an atom of Ga in an excited state?