Chemistry, 09.12.2020 20:40, jasminebaeeecx
Balancing Equations PhET A chemical equation is shorthand way of expressing what is happening in a chemical reaction. The Law of Conservation of Matter states that matter cannot be created nor destroyed. This holds true for chemical equations. It means that the number of atoms of an element must be equal on both sides of an equation. In other words, the equation must be balanced. This idea became a scientific law because many careful experiments indicated that mass is the same before and after a chemical or physical change. Examine the chemical equation below: Reactant Side N2 + H2 Product Side NH3
1. If you weighed the atoms that appear on the reactant side of the equation, would they have the same mass as the atoms that appear on the product side? Tell how you know.
2. How many atoms of nitrogen appear to be on the reactant side? The product side?
3. How many atoms of hydrogen appear to be on the reactant side. The product side?
4. Do you feel that this equation is currently following the law of conservation of mass?
Answers: 1
Chemistry, 21.06.2019 16:20, kingsqueen883
Consider the two electron arrangements for neutral atoms a and b. are atoms a and b the same element? a - 1s2, 2s2, 2p6, 3s1 b - 1s2, 2s2, 2p6, 5s1
Answers: 3
Chemistry, 22.06.2019 10:30, Brookwiggington8814
What woukd most likely be the transmittance at a 0.70 m solution of solute a? a) 7.6%b) 1.1%c)4.0%d)4.6%
Answers: 1
Chemistry, 22.06.2019 19:50, nikoidurrant
What is the wavelength of a wave with a velocity of 50 m/s and a frequency of 5hz a 250 m b 0.1 m c 10m d 0.01 m
Answers: 2
Chemistry, 22.06.2019 21:30, leenzazou587
Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.
Answers: 1
Balancing Equations PhET A chemical equation is shorthand way of expressing what is happening in a c...
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