Describe the reactions of cis- and trans-K[Cr(C2O4)2(H2O)2] with NH3, and the reverse reactions with HCl using chemical equations. List any observations, such as color changes and apparent solubilities

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

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

Need asap question 1 minerals are organic compounds. true false question 2 what vitamin can be found in foods like oranges, grapefruits, and broccoli? a. vitamin a b. vitamin k c. vitamin c d. vitamin d question 3 what are minerals? a. chemical elements that are needed for body processes. b. organic compounds that the body needs in small amounts to function properly. c. small molecules used to build proteins. d. an organic compound that is insoluble in water and includes fats. question 4 how many types of vitamins does the human body need? a. 15 b. 11 c. 13 d. 17 question 5 vitamins are a good source of energy. true false