a 10kg quantity of radioactive isotope decays to 5kg after 17 years. Find the decay constant of the isotope

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

Given the following reaction: c3h8+5o2=3co2+4h20 how many grams of co2 will be produced 7 g of c3h8 and 98 g of o2