Which of these molecules has the same number of shared electron pairs as unshared electron pairs? (a) hcl, (b) h2s, (c) pf3, (d) ccl2f2 (e) br2?

What is the order of decreasing atomic radius? 1. antimony, bismuth, phosphorus 2. bismuth, phosphorus, antimony 3. antimony, phosphorus, bismuth 4. phosphorus, antimony, bismuth 5. bismuth, antimony, phosphorus 6. phohshorus, bismuth, antimony

Which of the following is true of evaporation? A. It is considered a cooling process and it raises the average kinetic energy of the liquid because the higher energy molecules turn to vapor. B.

Whitch rock types tend to the weather in rounded shapes

There are many, many stars in our Universe. In which of the following do all stars appear to be quite similar? A. Temperature B. Chemical Composition C. Distance from Our Solar System D. Age

Why does a metal lawn chair get hot in the sun when the grass sitting in the same sunlight remains cool, to the touch? 1. Heat travels easily through plants but not metals. 2. Heat travels easily through both plants and metals. 3.

During a nuclear reaction, mass is converted into (1) charge (2) energy (3) isomers (4) volume

The temperature reading of - 14°C corresponds to a Kelvin reading of: -287 K. 287 K. 297.6 K 259 K.

If element X consists of 64.6% of atoms with a mass of 34.0 u, 18.2% of atoms with a mass of 35.0 u, and 17.2% of atoms with a mass of 36.0 u, what is the average atomic mass of element X to the nearest hundredth?

Water has a K, value of 1x 10-13 1x 10-10 1x 10-15 1x 10-14

What evidence do scientists use to explain how the solar system formed? A) All the planets were a result of solar flares from the sun. B) All the planets are made of the same material, mainly helium.