Tritium (half life = 12.3 y) is used to verify the age of expensive brandies. If an old brandy contains 1/16 of the tritium present in the new brandy, then how long ago was it produced

Use basic in a sentence

Ions that are made of more than one atom are examples of a. polyatomic ions. b. negative ions. c. positive ions. d. neutral ions.

The density of aluminum is 2.70g/mL. What is the volume in mL of 74.5 grams of aluminum?

Describe the electrodes in this iron-copper galvanic cell.

Scientists who do carbon 14 dating use 5700 years for its half life. find the age of a sample in which 10% of the radioactive nuclei originally present have decayed

State one qualitative and one quantitative statement of the following : water, sodium hydroxide, air, gold, mercury, carbon, iron and hydrogen gas

Why radiation is dangerous to people?

12. What volume of carbon dioxide contains the same number of molecules as 20.0 mL of oxygen at the same conditions?

The enthalpy of a system is the same as its: A. specific heat. B. heat of reaction. C. heat of combustion. D. heat content.

Carry out the following operations as if they were calculations of experimental results, and express each answer in the correct units with the correct number of significant figures: (a) 5.6792 m + 0.6 m + 4.33 m (b) 3.70 g - 2.9133 g (c) 4.51 cm x 3.