The element gold has a consistent melting point and color regardless of the physical
changes that it goes through. This identifies gold as what type of substance?

A. A mixture
B. A compound
C. A pure substance
D. A physical property

Is this a single replacement reaction or there is no

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1