Ions are atoms that have gained or lost which subatomic particles?
a. protons
b...
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Chemistry, 22.06.2019 19:00
Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?
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Chemistry, 23.06.2019 21:30
Acertain substance has a solubility of 12 grams in 100 grams of water at 20°c. this means that the substance will begin to dissolve when 12 grams are present in solution when 12 grams of the substance are stirred into a beaker with 100 g of water, it will begin settling at the bottom when 12 g of the substance are dissolved in 100 grams of water, the solution will be dilute when 12 g of the substance are dissolved in 100 grams of water, the solution will be saturated
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Chemistry, 24.06.2019 03:30
Savanna regions developed during the triassic period. t f
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Chemistry, 24.06.2019 07:30
Study the following two reactions. select all that apply. c(graphite) + o2(g) → co2(g) + 94.05 kcal c(diamond) + o2(g) → co2(g) + 94.50 kcal what could you infer from the information given above? the enthalpy of co2 is greater than the reactants. e2 - e1 is negative. graphite and diamond have equal enthalpy. diamond must have lower internal energy.
Answers: 2
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