Question 13 Which of the following states the law of conservation of mass?
A
In a chemical reaction, two compounds combine to form a new compound,
Ов
In a chemical reaction, atoms ars rearranged, and some join new molecules,
С
Mass cannot be created or destroyed in a chemical reaction,
D
Energy is neither created nor destroyed in a chemical reaction.
K

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.

Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=

What is the role of lenses in microscopy?