How can scientists determine when a radioactive substance will no longer be dangerous

How do particles in a solid differ from particles in a liquid? A) the liquid particles move at the same rate as solid particles. B) the liquid particles move faster than solid particles. C) the liquid particles move slower than solid particles.

0.005 mg/l is the maximum concentration of cadmium allowed in drinking water. what is the molarity of the water that contains the maximum concentration of Cadmium allowed?

When the oxidation number of an element decreases over the course of a reaction, that element has been ... A ionized. B. Oxidized. C. redoxed, D. reduced

How is the number of valence electrons in an atom related to its tendency to gain or lose electrons during compound formation?

Carbon tetrachloride (ccl4) may be produced when reacting excess chlorine with methane in the presence of light. truefalse

how do geologists use seismic waves to locate an earthquakes epicenter

Which formula id correctly paired with its name? A. MgSO↓ = magnesium chlorine B. FeO = iron (|||) oxide C. K↓2O = Phosphorus dioxide D. CuCI↓2 = copper (||) chloride

Suppose you find a rock that contains some potassium-40 (half-life of 1.3 billion years). you measure the amount and determine that there are 5 grams of potassium-40 in the rock.

What are some positive and negative effects of the production of maple syrup on society and the environment?

Describe and give an example of parasitism.