What wavelength of light would you report in units of nm, if the light had a of

Question

What wavelength of light would you report in units of nm, if the light had a of 7.60 times 10^-10 m? Read the length of the metal bar with the correct number of significant figure 20 cm 15 cm 15.0 cm 15.00 cm 15.000 cm Which of the following are examples of physical change? dew forms on a blade of grass a halloween light stick glows after shaking an egg solidifies during cooking a hydrogen balloon explodes when contacted with a flame None of the above are physical changes. Which of the following statements does not describe a physical property of chlorine? The freezing point of chlorine is -101 degree C. The color of chlorine gas is green. The density of chlorine gas at standard temperature and pressure is 3.17 g/L. Chlorine combines with sodium to form table salt.

Explanation / Answer

2) 96nm as 1nm = 10-9m

3) answer: c

15.0cm

4) answer: a

Dew formation on grass is due to physical change i.e. condensation. composition of water doesn't change

5) answer: d

Chlorine combines with sodium to form table salt is a chemical property not physical.

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