Naturally occurring rubidium consists of about 73.2% rubidium-85 (atomic mass 84.9 u) and 27.8% rubidium-87 (atomic mass 86.9 u). calculate the average atomic mass of rubidium rounding your answer to 0.1 u

The law of conservation of energy states that momentum is conserved in a collision.

What is the color and temperature range of a star with the lowest temperature?

Suppose that you wanted to form baco3 as a precipitate in an aqueous reaction. what aqueous solutions would you choose as reactants? 1. not possible since baco3 is soluble 2. bacl2 and caco3 3. baso4 and na2co3 4. ba (no3) 2 and k2co3

What determines the exact temperature of the air

Letter flipper on a game show. Periodic table pun

Which combination of protons neutrons and electrons is correct for the isotope of copper - 63?

What is the purpose of a domain?

What is the ideal gas constant? A. It is a constant that applies only at STP. B. It is a specific constant for a particular gas. C. It is a universal constant used for all gases. D. It is a constant that depends on the conditions.

The greenhouse effect is a result of the Sun's energy being absorbed by objects on the Earth and converted into which type of radiation? A) Radio B) Visible C) Infrared D) Ultraviolet

Which was the limiting reactant: the zinc or the hydrochloric acid? Remember that the limiting reactant is completely consumed in a reaction and no new product is formed unless more of the limiting reactant is added.