An ostrich can run at an average speed of 50 km/h. How long would it take an ostrich running at this speed to travel from Seattle, WA to Portland, OR (assuming the two cities are about 230 km apart) ?

A. 3.3 h

B. 4.1 h

C. 4.3 h

D. 4.6 h

Which list of elements is arranged in order of increasing atomic radii? (1) Li, Be, B, C (3) Sc, Ti, V, Cr (2) Sr, Ca, Mg, Be (4) F, Cl, Br, I

Identify factors that affect the ratio when substances combine to form compounds

88 g of the strontium reacts with 160 g bromine to produce how many strontium bromide

If you put a straw into a glass of water, the straw looks to be bent, although nothing has physically happened to the straw. The term that describes this property of light is A) absorption. B) diffraction. C) reflection. D) refraction.

It is thought that bonding of adhesives occurs at the molecular level. what is the technical name of the force which holds glue to its bonding materials?

What would happen if you tried to sqeeze a gas into a smaller container?

Paint, paint thinners and some cleaning agents can weaken the shell of a hard hat and may eliminate

A 10 chunk of metal has a specific heat of 0.25 J/g ºC. The temperature is changed from 10ºC to 45ºC. How much heat is required?

In this reaction what is the correct coefficient for sodium chloride? pb (no3) 2? nacl → pbcl2? nano3

Classify each of the following as a path function or a state function. work energy distance traveled enthalpy heat