Chemistry, 23.08.2019 09:30 randallmatthew6124
Which statement is true of any chemical reaction a. the mass of the reactants is always greater than the mass of the products b. the mass of the products is always greater than the mass of the reactants c. there is no relationship between the mass of the reactants and products d. the mass of the reactants equals the mass of the products
Answers: 1
Chemistry, 22.06.2019 15:30
What best discribes the relationship between wavelength and frequency in a electromagnetic wave
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Chemistry, 23.06.2019 09:00
Describe the process that was used in this lab to create magnesium oxide, specifically identifying the type of chemical reaction. explain why the product had a higher mass than the reactant, and how this relates to conservation of matter.
Answers: 2
Chemistry, 23.06.2019 14:00
Ahas distinct properties and composition that never vary.
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Chemistry, 23.06.2019 15:30
In a modern periodic table, there are seven periods. a period is any horizontal row of the periodic table, and the elements in a period have consecutive atomic numbers. a group is any vertical column in the periodic table, and there are 18 such groups. groups 3–12, also known as the “b” group elements, are called transition metals. groups 1–2 and 13–18, also known as the “a” group elements, are sometimes called the main groups. metals are characterized by malleability, ductility, conductivity, and a tendency to lose electrons. main group metals are found in groups 1 and 2. nonmetallic elements fall on the right-hand side of the periodic table, that is, groups 13–18. nonmetals have the tendency to gain electrons and are generally brittle. they can be solids, liquids, or gasses at room temperature. now, label the areas of the modern periodic table using the above information. drag the appropriate labels to their respective targets.
Answers: 1
Which statement is true of any chemical reaction a. the mass of the reactants is always greater than...
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