When a bimetallic bar made of copper and iron strips is heated, the bar bends toward the iron strip. the reason for this is?

Match these items. 1. first nuclear reactor fission 2. neutron 3. decaying nuclei curie 4. number of neutrons and protons Fermi 5. builds heavier elements atomic mass 6. discovered radioactivity fusion 7. unit of radiation Becquerel

1. Given the following equation: 2C4H10 + 13O2 - -->8CO2 + 10H2O Show what the following molar ratios should be. a. C4H10 / O2 2:13 (example) b. O2 / CO2 c. O2 / H2O d. C4H10 / CO2 e. C4H10 / H2O

A piece of metal ore weighs 8.50 g. when a student places it into a graduated cylinder containing water, the liquid level rises from 21.25 ml to 26.47 ml. what is the density of the ore?

A 1.00 L flask was filled with 2.00 mol gaseous SO2 and 2.00 mol gaseous NO2 and heated. After equilibrium was reached, it was found that 1.30 mol gaseous NO was present. Assume that the reaction occurs under these conditions.

H2 (g) + I2 (g) ⇌2HI (g) Initially, only H2 and I2 were present at concentrations of [H2]=3.65M and [I2]=2.70M. The equilibrium concentration of I2 is 0.0100 M. What is the equilibrium constant, Kc, for the reaction at this temperature?

In a closed system, if a gas is transported to a container with double the volume of the previous container, gas was held in, What is the gases' new volume?

Rebekah is studying a molecule and trying to determine if it is DNA or RNA. Which kind of molecule is she studying? carbohydrate protein nucleic acid lipid

The function of most proteins depends primarily on the

Compare the temperature of water as ice begins to form with the temperature of ice as it begins to melt?

Which elements are present in sugars?