1. A candle is placed on one pan of a balance, and an equal weight is placed on the other pan. What would happen if you lit up the candle and waited for a while? 2. Suppose the candle was placed in a large, sealed jar that allowed it to burn for several minutes before running out of oxygen. The candle and jar are balanced by an equal weight. In this situation, what would happen if you lit up the candle and waited? Gizmo Warm-up Burning is an example of a chemical reaction. The law of conservation of matter states that no atoms are created or destroyed in a chemical reaction. Therefore, a balanced chemical equation will show the same number of each type of atom on each side of the equation. To set up an equation in the Chemical Equations Gizmo, type the chemical formulas into the text boxes of the Gizmo. First, type in "H2+02" in the Reactants box and "H20" in the Products box. This represents the reaction of hydrogen and oxygen gas to form water. Reactants H2+02 - Products 2. Based on what you see, is this equation currently balanced? H2O 1. Check that the Visual display is chosen on each side of the Gizmo, A. How many hydrogen atoms are on the Reactants side? B. How many oxygen atoms are on the Reactants side? and count the atoms. Products side? Products side?
1. A candle is placed on one pan of a balance, and an equal weight is placed on the other pan. What would happen if you lit up the candle and waited for a while? 2. Suppose the candle was placed in a large, sealed jar that allowed it to burn for several minutes before running out of oxygen. The candle and jar are balanced by an equal weight. In this situation, what would happen if you lit up the candle and waited? Gizmo Warm-up Burning is an example of a chemical reaction. The law of conservation of matter states that no atoms are created or destroyed in a chemical reaction. Therefore, a balanced chemical equation will show the same number of each type of atom on each side of the equation. To set up an equation in the Chemical Equations Gizmo, type the chemical formulas into the text boxes of the Gizmo. First, type in "H2+02" in the Reactants box and "H20" in the Products box. This represents the reaction of hydrogen and oxygen gas to form water. Reactants H2+02 - Products 2. Based on what you see, is this equation currently balanced? H2O 1. Check that the Visual display is chosen on each side of the Gizmo, A. How many hydrogen atoms are on the Reactants side? B. How many oxygen atoms are on the Reactants side? and count the atoms. Products side? Products side?
Chapter6: The States Of Matter
Section: Chapter Questions
Problem 6.78E
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Concept explainers
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Question
Transcribed Image Text:1. A candle is placed on one pan of a balance, and an equal weight is placed on the other pan.
What would happen if you lit up the candle and waited for a while?.
2. Suppose the candle was placed in a large, sealed jar that allowed it to burn for several
minutes before running out of oxygen. The candle and jar are balanced by an equal weight.
In this situation, what would happen if you lit up the candle and waited?
Gizmo Warm-up
Burning is an example of a chemical reaction. The law of conservation of matter states that
no atoms are created or destroyed in a chemical reaction. Therefore, a balanced chemical
equation will show the same number of each type of atom on each side of the equation.
To set up an equation in the Chemical Equations Gizmo, type the chemical formulas into the
text boxes of the Gizmo. First, type in "H2+02" in the Reactants box and "H20" in the
Products box. This represents the reaction of hydrogen and oxygen gas to form water.
Reactants
H2+O2
2. Based on what you see, is this equation currently balanced?
Products
1. Check that the Visual display is chosen on each side of the Gizmo,
A. How many hydrogen atoms are on the Reactants side?
B. How many oxygen atoms are on the Reactants side?
Reproduction for educational use only. Public sharing or posting is prohibited.
H2O
and count the atoms.
Products side?
DELL
Products side?
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