HEY GUYS I NEED HELP WITH THIS PROBLEM I WILL GIVE BRAINLIEST TO SOMEONE IF THEY SHOWED ALL THEIR WORK. 1. Cu (s)  + 2 AgNO3 (aq)   →   Cu(NO3)2 (aq)  + 2 Ag (s)

Based on the reaction you want to produce 68.7 grams of silver, however you actually produce 60.5 grams, what is the percent yield? (4pts)
 
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What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?