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☆☆☆☆☆Cards in this guide (8)
Do decomposition reactions require energy
Nearly always, but there are compounds which formed endothermically, so their decomposition gives out energy.
Which method of heat transfer causes actual movement of material
Both conduction and convection. Conduction involves the small movements of individual particles, convection can be on a much larger scale with a hot liquid or gas rising and a cool liquid or gas dropping.
Which type of chemical reaction often produces energy in the form of light heat or electricity
Exothermic Reaction
In addition to speeding up what will heated particles do
expand and grow frow larger
What is a chemical equation in which both the reactant an product have an equal number of atoms of a given element
balanced equation
What is the number in front of a chemical formula called-
The number in front of a chemical formula is called a coefficient.
Subscripts can be changed in order to balance a chemical equation.
False,Only coefficients can be changed in order to balance a chemical equation. Subscripts are part of the chemical formula for reactants or products and cannot be changed to balance an equation.
Which of these statements is true of convection
the melted rock called magma is less dense than a solid rock
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