blondieb1722

05.07.2019 • 

Chemistry

Which of tge following is an example of a chemical change a. flour and sugar are sifted together into a measuring cup. b. chocolate squares are melted yi make a cake. c. the shell of an egg breaks when it is struck against a hard surface. d. a mixture of flour, sugar, eggs, and butter is baked to become a cake

Ответ:

enazer

26.05.2020

Chemistry

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Α.fℓσυя αи∂ ѕυgαя αяє ѕιfтє∂ тσgєтнєя ιитσ α мєαѕυяιиg ¢υρ

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Ответ:

xonyemaa12

08.04.2020

Chemistry

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The pH of a solution is a measure of hydrogen ion concentration, which in turn is a measure of its acidity. Pure water dissociates slightly into equal concentrations of hydrogen and hydroxyl (OH−) ions. For a neutral solution, [H+] is 10−7, or pH = 7

Explanation:

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