A scientist makes several observations about a chemical reaction and records them in the table shown. Which observation contains an error based on the Law of Conservation of Mass? o 1
o 2
o 3
o 4

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?

Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride

Compare and contrast refraction of light and sound will give brainliest