Part A Are the following data sets on chemical changes consistent with the law of conservation of mass? Match the words in the left column to the appropriate blanks in the sentences on the right. inconsistent consistent equals does not equal A 12.8-g sample of sodium completely reacts with 19.6 g of chlorine to form 32.4 g of sodium chloride. These data are with the law of conservation of mass because the mass of reactants the mass of products. Reset Help An 8-g sample of natural gas completely reacts with 32 g of oxygen gas to form 17 g of carbon dioxide and 16 g of water. These data are with the law of conservation of mass because the mass of the reactants the mass of hte products.
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
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Exercise 3.48
Part A
Are the following data sets on chemical changes consistent with the law of conservation of mass?
Match the words in the left column to the appropriate blanks in the sentences on the right.
inconsistent
consistent
equals
does not equal
Reset Help
A 12.8-g sample of sodium completely reacts with 19.6 g of chlorine to form 32.4 g of sodium
chloride. These data are
with the law of conservation of mass because the mass of
reactants
the mass of products.
An 8-g sample of natural gas completely reacts with 32 g of oxygen gas to form 17 g of carbon
dioxide and 16 g of water. These data are
with the law of conservation of mass
because the mass of the reactants
the mass of hte products.
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