You did 3) wrong. Using your method..
3)6.5x10^-3 - 3.5x10^-9
0.006 5-0.000 000 003 5=0.0059999965
5.9999965 x 10^-3
Let me show you an easier way. Convert both numbers to the same power.
6.5E-3 - 3.5E-9
6.5E-3 - 3.5E-3E-6
(6.5- .000 0035 )E-3
6.499 99965 E-3
5.2x10^6 + 3x10^5
55E5 or 5.5E6
what does E stand for?
E means x 10^ It is often used in computers, calculators, and in ASCII chat as here. It is easier.
Answer this Question
chemistry - 1. (3.0x10^4) divided by (6.2x10^1) = 5x10^2? 2. (4.7x10^-3) divided...
Math - Name the property that justifies each step. [(2x100)+(3x10)]+[(1x100)+(...
AP Chem - MnS(s) + 2 H+ --> Mn2+ + H2S(g) At 25 C the solubility product ...
Chemistry - In an experiment, 0.0300 moles each of SO3(g), S02(g), and O2(g) ...
multiplying and diving scientific notation - 1)(2.3x10^2)(4.5x10^-7)= 1.035x10...
math - (3.5x10^-3)(4.2x10^7)
Chemistry - H3PO4 Ka1= 7.5x10^-3 Ka2= 6.2x10^-8 Ka3=4.2x10-^13 Explain how you ...
Chemistry - 4. 5.6 x 10-6 mol of A and 5 x 10-5 mol of B are mixed in a 200 mL ...
Physics - 4th order dark fringe and 2nd order bright fring spaced 2.5cm apart ...
Chemistry - 32.0=5.5x10^2(1/T)+14.2 Solve for T I am confused about what the ...