Draw a dot and cross diagram to show the bonding in CH2F2. Your diagram only needs to show the outer shell electrons.
which crystallizes in a metallic latticeNaMnO4KCLiClO4K2Cr2O7
The distances from the Sun at perihelion and aphelion forMars are 2050·105 km and 2490·105 km, respectively. What isthe ratio of Mars’ orbital speed around the Sun at perihelionto that at aphelion?
(z)-1,3,5-tribromo-2-pentenehow does the structure look?
A professor’s office door is 0.95 wide, 2.2 high, 4.0 thick; has a mass of 22 , and pivots on frictionless hinges. A “door closer” is attached to door and the top of the door frame. When the door is open and at rest, the door closer exerts a torque of 5.8 .
The density of lead is 11.3 g/ml . The water level in a graduated cylinder initially at 217 ml rises to 286 ml after a piece of lead is submerged. What is the mass in grams of the lead?
you find out that 5.00ml of a solution of H3PO4 takes 7.85ml of 0.18 M Ba(OH)2 to reach the equivalence point. What is the molarity of the H3PO4 solution
At room temperature (20), milk turns sour in about 65 hours. In a refrigerator at 3, milk can be stored three times as long before it sours. What is the activation energy of the reaction tht causes the souring of milk?
The wheels on a particular moving car rotate 486 times per minute. Find the rotational period of the tires.
Find the frequency of small oscillations for a thin homogeneous plate if the motion takesplace in the plane of the plate and if the plate has the shape of an equilateral triangle andis suspended (a) from the midpoint of one side and (b) from the apex.
