A student makes measurements to calculate the density of a rod of aluminum to be

3.26 g/cm3. If the actual density of the aluminum rod is 2.70 g/cm3, what is the

percent error?

15.5%

5.93%

94.41%

20.7%

Which of the following steps will speed up the reaction between coal and oxygen? Keep the coal in a wide dish Decrease the temperature of oxygen Increase the temperature of coal Keep the coal in a narrow test tube

If your studying cells and heredity you are most likely taking a chemistry class

Collect information and write how the coronavirus pandemic is affecting the carbon dioxide emission

What are compounds and how do they form

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Polar covalent bonds are formed when the electrons in the bond are not shared equally between the two nuclei. which one of these molecules contains polar bonds?

The flame from my candle gives off black smoke heat and light what type of changes do these indicate

Which one of the following processes results in a decrease in the number of neutrons? corrosion electron capture gamma emission positron emission alpha emission

Calculate the root mean square velocity of F2, Cl2, and Br2 at 304 K.

The total pressure inside a 1.62 cylinder kept at 35°C is 1.15 atm. If the volume of the cylinder drops to 0.74 L and the temperature remains the same, what is the new pressure inside the cylinder?