Choose the response that includes all the following combinations that are buffer solutions and none that are not buffer solutions. All components are present in 0.10 M concentrations. I. HCl and NH3 II. HIO3 and KOH III. HNO3 and NH4NO3 IV. H2SO4 and Na2SO4 V. HNO2 and LiNO2 VI. CH3NH2 and CH3NH3NO3 Group of answer choices II, III, and IV I, III, and VI I, II, V, and VI II and VI III and IV

Express the following number in scientific notation. 0.026890 =

How does concentration affect reaction rate

Read the claim. breakfast is an important meal. it jump starts the body’s process of using calories to break down food. appetite can decrease with age, but going too long without eating causes metabolism to slow down. current research shows that incorporating legumes such as lentils and chickpeas into meals boosts metabolism for twenty-four hours. who might benefit from this claim? people who have a fast metabolism stores that sell exercise equipment people who take vitamin supplements grocery stores that sell legumes