Chemistry
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Chemistry
I have a Chemistry question which should be very simple but I do not know what significant figures are. Assuming the following numbers are measurements and using the rules for significant figures, determine the answer for the following calculation. (15.5/42)*219.5= 1. 81.0059 ...
Algebra2
Write the standard form of the equation of the circle with the given center and radius. 1. center (-2, 0) and r = 3
Algebra2
Write an equation for the line in point/slope form and slope/intercept form that has the given condition. 1. Passes through (3, 2) and is parallel to 2x-y=4 2. Passes through (-1, -1) and is perpendicular to y = 5/2x + 3
Science
Chemistry Enthalpy Calculations? Given the equation: CaO + H2O ----> Ca(OH)2 A 1 g sample of CaO is dissolved in 100 ml water with density 1.00g/ml. The temperature rise is 3.7 degrees C. The specific heat is 4.00 J/g*deg. 1. Calculate the heat (in J) absorbed/given off by ...
Math
find all the numbers less then 100 that are the product of exactly three different prime numbers.
Forensics, Accounting
Confirming inventory
physics
what potential difference is required to pass 3.0 A through 28 ohm's
chemistry
The volume of a gas at 20 C and 0.4 atm is 10 mL. What volume will the same gas sample occupy at standard conditions?
Physics
Two electrostatic point charges of +60.0 uC and +50.c uC exert a repulsive force on each other of 175 N. What is the distance between the two charges? So let's say I use Coulomb's law would the repulsion of 175 N be considered the equivalent of the electric force? Can ...
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