Reaction of halide salt with silver nitrate salt reaction with agno3 naf clear liquid nacl white solid kbr yellow solid kl tan solid during chemistry lab, carl and his lab partner, mary, mixed four halide salts, one at a time, with silver nitrate. mary commented that all but one salt reacted chemically with the silver nitrate. carl asked her how she knew that a chemical reaction had occurred. what was mary's response based on evidence in this activity? a) a gas formed. b) a precipitate formed. c) the silver nitrate disappeared. d) an exothermic reaction took place.

Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?