The half-life of Zn-71 is 2.4 minutes. if one had 100.0 grams at the beginning, how many grams would be left after 7.2 minutes has elapsed?

Compound X has the molecular formula C3H6, and Compound Y has the molecular formula C6H12. How are the two compounds related? A. They are made of the same elements, but are different compounds B.

Methane, CH4, can be used as fuel in an automobile to reduce pollution. What is the coefficient of oxygen in the balanced equation for the reaction? __CH4 (g) + __O2 (g) __CO2 (g) + __H2O (g)

What is the mass of 3.0 x 1023 atoms of neon

How are lunar and solar eclipse created?

Ingle-replacement reactions can take place with nonmetals. For this question, assume that A and C are nonmetals and B is a metal. Which general equation shows one nonmetal replacing another nonmetal in a compound?

Carbon monoxide reacts with oxygen to form carbon dioxide. 2 CO (g) + O2 (g) → 2C02 (8) In a 1.00 L flask, 3.40 atm of CO reacts with 2.60 atm of O2. Assuming that the temperature remains constant, what is the final pressure in the flask? 4.30 atm 2.

The nerves that Branch out from the spinal cord and connect to the body

The term southern oscillation most nearly refers to

Which kelvin temperature is equivalent to 20°C

When a piece of magnesium metal is added to hydrochloric acid, what gas is produced?