What is the mass of a sample of glass (specific heat = 0.50 J/g C) if it requires 490 J of heat to raise the temperature from -18.0 C to 0.0 C?

What does standard deviation reveal about data? a. the average of all the data points b. which of the data points is most reliable c. how spread out the data points are d. the percent error included in the data

Element before carbon on the periodic table

Draw the lewis structure for the trisulfur s3 molecule. be sure to include all resonance structures that satisfy the octet rule.