A 133.8-gram sample of bronze was 10.3% tin by mass. Determine the total mass of tin in the sample.

What is the minimum number of nucleobase "digits" required to code for the 20 different amino acids? (Groups of nucleotides, each coding for a single amino acid in a protein chain, are called "codons" by biologists.

On a flight to Europe, you notice that the packages of peanuts are puffed up. Why? 1. The jet is over-pressurized at high altitudes, thus causing the gas inside the packages to expand. 2.

Beaker A contains 100.0 g of water initially at 10EC. Beaker B contains 100.0 g of water initially at 20°C. The contents of the two beakers are mixed.

The component which dissolves in a solution is called the ...

What does the frequency of a wave represent

What force (in newtons) is required to accelerate a body with a mass of 32 kilograms at a rate of 12 m/s2? If a body with a mass of 4 kg is moved by a force of 20 N, what is the rate of its acceleration?

A. draw the structure of the tetrahedral intermediate initially-formed in the reaction shown. reactions of esters with

The water level in a graduated cylinder stands at 20.0 ml before and at 26.2 ml after a 16.74 g metal sample is lowered into the cylinder. what is the density of the sample. what metal is the sample most likely to be

What are the tube feet on a star fish

What kingdom is humans in!