Which of the following has the smallest first ionization energy: F, Be, Sr or Ra?

F

Be

Sr

Ra

Sugar is composed of chemically bonded carbon, hydrogen, and oxygen. Sugar is an example of which of the following? A. An atom B. A compound C. an electron

Which place would have a mild climate

Boron exists in two isotopes, boron-10 and boron-11. based on the atomic mass, which isotope should be more abundant

Which of the following types of radiation is composed of particles with a charge and mass identical to that of an electron? a. alpha particles b. beta particles c. gamma radiation d. X-rays

In the explosion of a hydrogen-filled balloon, 0.40 g of hydrogen reacted with 3.2 g of oxygen. How many grams of water vapor are formed? (water vapor is the only product.) express your answer using two significant figures.

Can you zooley answers.

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

Chemistry is the study of matter true or false

Which of the following reactions are redox reactions? a. Al (s) + 3Ag + (aq) →Al3 + (aq) + 3Ag (s) b. SO3 (g) + H2O (l) →H2SO4 (aq) c. Ba (s) + Cl2 (g) →BaCl2 (s) d. Mg (s) + Br2 (l) →MgBr2 (s)

How many liters of water are required to dissolve 1.00 g of barium chromate? express your answer in liters to three significant figures?