If 1 g of radium-226 has an activity of 1 curie, what is the activity of 2 g of radium-226?

1 curie

2 curies

4 curies

10 curies

Explain the effects of human activity on groundwater and surface water in a watershed

What is the difference between a solution and a heterogeneous mixture?

How does the tilt of earths axis affect the number of daylight hours and the temperature of a location on earth?

Which are assumed to be constant while using the combined gas law? pressure number of moles volume and moles of gas pressure and temperature

Explain how the mass of a single atom in an element (in amu), the mass of one mole of that element, and Avogadro's number are related.

When magma intrudes parallel to another rock layer, the formation is called a (n) A. sill. B. dike. C. extrusion. D. unconformity.

What is the net amount of energy released when 1 mole of H2O is produced

Why is Sn (SO4) 2 named Tin (IV) Sulfate and not Tin (II) Sulfate?

An element x forms an iodide (xi3) and a chloride (xcl3). the iodide is quantitatively converted to the chloride when it is heated in a stream of chlorine: 2xi3+3cl2â2xcl3+3i2 if 0.5500 g of xi3 is treated, 0.2596 g of xcl3 is obtained.

When you kick a soccer ball across a field it will eventually come to a stop. Does this prove or disprove Newton's first law of motion? It disproves Newton's first law of motion because gravity is stronger than friction.