Exam 2: Life's Chemical Bases

Classification. The following are types of chemical bonds. Answer the questions below by matching the descriptions with the most appropriate bond type. -A bond in which connected atoms share electrons

The radioisotope ¹⁴C can be used as a research tracer because it ____.  

Which statement is false?  

Classification. The following are important terms relating to acids and bases. Answer the questions below by matching the descriptions with the most appropriate word. -Substance that accepts,but does not release,H⁺

Classification. The following are types of chemical bonds. Answer the questions below by matching the descriptions with the most appropriate bond type. -A bond in which connected atoms unequally share electrons

Classification. The following are important terms relating to water's special properties. Answer the questions below by matching the descriptions with the most appropriate word. -Property of NaCl that enables it to dissolve in water

All isotopes of an element have a different number of ____.  

"Acidic" is an appropriate description for four of the following.Which one is the exception?  

A solution with a pH of 9 has ____ times fewer hydrogen ions than a solution with a pH of 6.  

Which substance is not an element?  

Classification. The various energy levels in an atom of magnesium (²⁴Mg) have different numbers of electrons. Use the numbers below to answer the following questions. -The number of electrons in the first energy level

The most likely reason that glucose dissolves in water is that it is ____.  

What is the smallest unit of an element that retains the properties of that element?  

A molecule consists of ____.  

Isotopes of an element are differentiated by their ____.  

A salt will dissolve in water to form ____.  

Classification. The following are important terms relating to acids and bases. Answer the questions below by matching the descriptions with the most appropriate word. -Lemon juice

What is a buffer?  

Nitrogen,with an atomic number of 7,has ____ electron(s)in the first energy level and ____ electrons in the second energy level.  

Classification. The following are important terms relating to water's special properties. Answer the questions below by matching the descriptions with the most appropriate word. -A compound that releases ions when dissolved in water