A person walks 5km north then turns around and walks 3 km south. What is the total distance?

A solution a) has a heterogeneous composition and is able to be separated by physical means b) has a uniform composition and is only able to be separated by chemical means c) has a uniform composition and is able to be separated by physical means d)

Earthworms are classified as what type of worm

Why are results that do not confirm a hypothesis important?

In the reaction: cl2 + h2o? hclo + hcl, the hydrogen is

Write the name for the following compound that contain polyatomic ions

A material has a density of 8.9 g/cm3 you have six cubic centimeters of the substance what is the materials mass in grams

Not enough air is pumped into an inflatable life raft to make completely filled out the atm pressure is 14.7psi what is the pressure inside the raft explain

Water flows at the rate of 0.5 kg/s in a 2.5-cm-diameter tube having a length of 4 m. A constant heat flux is imposed at the tube wall so that the tube wall temperature is always 50°C higher than the water temperature.

Which of the following equations represents a double-displacement reaction? A. FeS (s) + 2HCl (aq) ® H2S (g) + FeCl2 (aq) B. 2Sb (s) + 3I2 (g) ® 2SbI3 (s) C. Zn (s) + H2SO4 (aq) ® ZnSO4 (aq) + H2 (g) D. 2HgO (s) ® 2Hg (l) + O2 (g)

Consider the Williamson ether synthesis between 2-naphthol and 1-bromobutane in strong base. A reaction was performed in which 0.51 g of 2-naphthol was reacted with a slight excess of 1-bromobutane to make 0.29 g of 2-butoxynaphthalene.