Describe at least two differences between ionic and covalent bonds.

1. Name three alkanes and state a use for each. 2. (a) Explain what is meant by (i) a saturated hydrocarbon (ii) an unsaturated hydrocarbon.

Sound is energy moving in

Several narrow linear bloodstain patterns are found on a wall adjacent to one where a body was found the droplets were elongated and about 1-4 mm in diameter which weapon most likely caused this blood spatter pattern A) Brass knckles on a fist B)

A gas at 255 kilopascals and 45°C has an initial volume of 2.00L. The pressure of the gas increases to 805 kilopascals as the temperature is raised to 255°C. What will be the new volume? 1.05 liters 2.28 liters 1.25 liters 0.44 liters 1.50 liters

What are two traits that make up an organism?

Compare and contrast steak and juice

Which of the following laboratory tools would be most appropriate for determining the volume of and irregular shape A) ruler B) triple beam balance C) graduated cylinder D) answers b and c

What type of change is the process of photosynthesis

A graduated cylinder is filled to the 40.00-mL mark with a mineral oil. The masses of the cylinder before and after the addition of the mineral oil are 124.966 g and 159.446 g, respectively. In a separate experiment, a metal ball bearing of mass 18.

Which element in Group 15 has the greatest metallic character? 1) N 2) P 3) Sb 4) Bi