Which quantity is equivalent to 50 kilocalories?

What is the radioactivity of the sample of sodium - 24 after 30h?

Chlorine and element X have similar chemical properties. An atom of element X could have an electron configuration of (1) 2-2 (2) 2-8-1 (3) 2-8-8 (4) 2-8-18-7

Propane burns in oxygen to produce carbon dioxide and steam. The unbalanced equation for this reaction is: C3H8 + O2 → CO2 + H2O

Why is carbon ideal for making different compounds?

How do you determine the percent yield of a product when given all reactant amounts?

In a zero order reaction, it takes 342 seconds for 75% of a hypothetical reactant to decompose. Determine the half-life t_{1/2} in units of seconds. Do not enter units with your numerical answer. Numeric Answer:

Choose one of the statements below that would best complete the following sentence. Carbenium ions are made by ... 1. adding protons to olefins. 2. abstracting protons from olefins. 3. adding hydride ions to naphthenes. 4.

Describe one main use for each fuel:coal, oil, and natural gas

The Carbon family element in period 4

Generally speaking, which group would have the lowest electronegativity values in a period? Group 1 Group 3 Group 14 Group 17