320.93 - (6109.7/2.3)

Express your answer to the appropriate number of significant digits.

1. What is light energy converted from in the bulb of a lamp? electric energy sound energy heat energy 2. Which is the best example of an object that converts electric energy to heat energy? lamp toaster radio 3.

If a wave is traveling at a certain speed and its frequency is doubled, what happens to the wavelength

Name 3 sets of elements that have been added to the periodic table since mendeleev's time

After a hypothesis is tested a scientist must do what next?

What are examples of a Theory?

If you walk toward a Van der Graaff generator, the effect of its electric field would get weaker as you got closer to it, true or false.

The volume of a single nickel atom is 8.10*10-24 cm3. what is the volume of a nickel atom in microliters?

A college student driving to classes produces 8000 kg of carbon dioxide (CO2) in a year, contributing to global warming. What volume of CO2 is produced? (The density of carbon dioxide is 2.0 g/L.)

For the first five steps of glycolysis, the appropriate sequence of enzymes is: A. phosphofructokinase-1 (PFK-1). B. hexokinase / glucokinase. C. fructose bisphosphate aldolase. D. Phosphoglucoisomerase. E. triose phosphate isomerase (TPI). a.

2NO + O2 → 2NO2 What type of chemical reaction is shown above? a combustion reaction b double displacement C synthesis d decomposition e single displacement