Cigarettes contain many chemicals. Which of the following chemicals is the addictive component to cigarettes?

a. tar

b. nicotine

c. carbon dioxide

d. carbon monoxide

What percentage of carbon's orbitals are spherical in conformation?

Chan has an ambition to use biodiversity as a tool to prevent particular diseases in humans. How can Chan use biodiversity in his work? 1. He can isolate species from their ideal ecosystems. 2. He can interbreed species to create the perfect hybrid.

Which of the following describes the characteristics of a solid? made up of particles packed closely together, having both definite shape and definite volume made up of particles packed relatively close together, having an indefinite shape but a

Which state of matter undergoes changes in volume most easily

Why Ammonia is nut dried by passing through concentrated H2SO4.

Which of the following has the greatest first ionization engergy li, be, b or c

If we know that 10.0 cm3 of ice has a mass of 9.19 g what is the density of ice

1. The is the particle in the nucleus of the atom that carries a positive charge and is counted to identify the atomic number. What's the answer

How many grams are there in 5.00 moles of lead Pb?

A large body in space that orbits a star and does not produce light of its own