What is the freezing point of water in °C?

Which one of the following statements describing the general properties of liquids is false?

Balance the equation below by placing the correct coefficients in the blanks. Your response should list the coefficients in order from left to right, separated only by commas; no spaces. If no coefficient belongs in a blank, represent it with a “1”. For example the equation 2 H2O →  2 H2+O2 would be represented as 2,2,1.    ____H2(SO4) +____Cr   →  ____Cr2(SO4)3 + ____H2  

Which of the following choices best classifies the following reaction:  Na2(SO4)   +   Pb(NO3)2    Pb(SO4)  +  2 Na(NO3) a. combination b. single replacement c. decomposition d. double replacement  e. redox f.  nonredox

The change from the liquid state to the vapor state that occurs only at the surface of the liquid is called ____.

Look at the heating/cooling curve for water diagrammed below. Between which two letters is the phase changing of boiling taking place? Response should be in the form “x and y”. 

Which element is reduced in the following reaction?  Zn  +   2 HCl   →  ZnCl2   +  H2

The correct name for the molecular compound N2O3 is

Which of the following choices best classifies the following reaction: NaHCO3 → Na2CO3 + H2O + CO a. combination b. single replacement c. decomposition d. double replacement 

In a oxidation-reduction reaction, the reducing agent is: