< Question 9

Element Q is a theoretical nonmetal with atomic number 57. Consider the isotope: Q-110. How

many electrons are in an atom of Q-110 if the atom has a charge of -2?

Describe in detail the melting point behavior of the 80: 20 benzoic acid-mandelic acid mixture

What is the mass of 0.46 mol of mgcl2

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.