Question

wi A WV Wie duuu tu dig soda 2) Which of the following is a NOT a homogeneous mixture? A) Vinegar B) Air C) A slice of pizza D) Salt water 3) Which of the following processes require(s) chemical methods? A) Separating a homogeneous mixture into pure substances. B) Separating a heterogeneous mixture into pure substances. C) Evaporating a saltwater mixture. D) Breaking a compound into its constituent elements. 4) What are the products of a neutralization reaction? A) Water and a salt B) Acid and a base C) Acid and water D) Base and water E) None of the above 5) A particular type of plastic floats in water, density = 1.0 g/mL, but sinks in 95% ethanol, density - 0.94 g/mL. Choose best conclusion A) The density of the plastic is less than both water and ethanol B) The density of the plastic is greater than water but less than ethanol C) The density of the plastic is less than water but greater than ethanol D) The density of the plastic is greater than both water and ethanol

Answer 1

4. (A) Lehen each occurs Salt and water acid and Base react with other then neutralization reaction and salt and water is fermed- 5 6 The density of Plastic es less than water but greater than thanol because it floats in water it means it's density is less than I reg/ml and sinks in ethanol
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A slice of pizza because you can clearly sea and separate the Indligerants in it 3. (A) separating a homogenous mixture into pure substance as you cannot distingus Bethleen the the mixture components, so need some chemical method to separed