NEEDS TO BE ANSWERED TODAY 1. Write a balanced chemical equation for each double replacement reaction that occurs.

Note: Compounds with Na+, K+, and/or NO − are soluble.

2. How could you tell a Ca(NO3)2 solution from a Zn(NO3)2 solution?

3. How could you tell a Cu(NO3)2 solution from a Ni(NO3)2 solution?

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line