( this is not a question) Drag the tiles to the correct boxes to complete the pairs.
A property of a substance can be measured or observed. Match each attribute of the substance with the property that describes it.

Which object forms when a supergiant runs out of fuel? a red giant a black hole a white dwarf a neutron star

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g

Which fact represents evidence for the big bang theory?