Look at the data in Figure 1. A sample of potassium-40 has decayed for 2.6 billion years. What is the ratio of potassium-40 to argon-40 in the sample?

8. what happens to matter during a chemical reaction

Which statement justifies that hydrogen peroxide (h2o2) is a polar molecule? the o – h bond is nonpolar and the molecule is asymmetric. the o – h bond is nonpolar and the molecule is symmetric. the o – h bond is polar and the molecule is asymmetric. the o – h bond is polar and the molecule is symmetric.

How many distinct monochlorinated products, including stereoisomers, can result when the alkane below is heated in the presence of cl2? 3 4 5 6 7?