All atoms of an element always have the same number of

a protons

b neutrons

c electrons

d electrons

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

What material does not melt at any temperature

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon