Fires in forests can sometimes be stopped by cutting down trees to make a gap (called a 'fire break'). Which part of the fire triangle does this remove?

How do you know if a reaction is exothermic

Geologist know that potassium 40 decays to argon 40, with a half life of 1.3 billion years. analysis of a hypothetical sample of granite reveals that 75 percent of the potassium 40 atoms have decyaed to form argon 40.

What determines a liquid's shape? What determines a gas's volume?

How does chemistry contribute to energy research

Based on the location of nitrogen (N) on the periodic table how many additional electrons does a nitrogen atom need in its valence shell to satisfy the octect rule when it forms bonds

Which pack has the greatest change in enthalpy, warm packs (such as hand warmers) or cold packs (such as an ice pack) ?

A gay cylinder what are the variables in gay-lussacs law

What is the cosmic address of earth in the cosmos?

What values do we plot on the y-axis of a graph

What is the n factor of Ba (MnO4) 2 in acidic medium when it reacts with H2O2?