Need to know how to do chemical reactions

Describe how physical and chemical change may have affected by temperature

Object A at 40ºC and object B at 80ºC are placed in contact with each other. Which statement describes the heat flow between the objects? A) Heat flows from object A to object B. B) Heat flows from object B to object A.

All radioactive nuclides undergo what

7. What is the prefix value for 100X?

What type of wave DOES NOT require a medium? Electromagnetic wave or Mechanical wave?

Type of ion formed by group 2A elements

When comparing the two elements P and I, the element with the higher first ionization energy is PP When comparing the two elements P and I, the element with the higher first ionization energy is blank based on periodic trends alone.

Internal respiration is the transfer of oxygen and carbon dioxide from the lungs to the tissue cells of the body. True or False

Which element is a metalloid? 1. Al 2. Ar 3. As 4. Aa

You move a 25N object 4 meters. Find the work you did