April 29, 2016

Posts by lexa

Total # Posts: 6

to calculate your square feet, you multiply 24 by 19. You will get 456 sq ft.
May 18, 2015

if 6.5kJ of energy are added to 56.4g sample of iron at 24 degrees C what is the final temperature of the iron? The specific heat of iron is 0.449j/gC
May 18, 2015

The reaction of fluorine with ammonia produces dinitrogen tetra fluoride and hydrogen fluorida. 5F2(g)+2NH(g)---> N2F4(g)+6HF(g) A. If you have 66.6gNH3, how many grams of F2 are required for a complete reaction? B. how many grams of NH3 are required to produce 4.65g HFCS? ...
February 20, 2014

September 10, 2012

7th grade Science
Early Earth was a Open System because energy and matter (light energy) and meteors where bombing the Earth
September 24, 2011

How many grams of Mg are needed to react completely with 3.80 L of a 2.50 M HF solution? Mg + 2HF --> MgF^2 + H^2
April 6, 2011

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