for a heavy element to be stable the number of protons typically equals the number of neutrons

the faster a boiling uncovered pot of water boils the hotter the water becomes

cellulose is an example of a natural polymer

the speed of light is always the same

rare earth metals are also known as alkali metals

a combustion reaction releases heat

noble gases are very reactive elements

a reaction in equilibrium cannot move forward or backward

the sum of the 3 angles is greater than 180º

the sum of the 3 angles is equal to 180º

the sum of the 3 angles is less than 180º

the triangle has negative curvature and is not considered a triangle

white is dominant to red

white is recessive to red

white flowers are dominant in all flowering plants

red flowers are recessive in all flowering plants