data sheet 1

Note: no need for explanation, just answer it all with letters. Thank you

Whipped cream is an example of a(n) _________________. A. emulsion B. aerosol C. solid aerosol D. foam E. solid emulsion

Cypress oil should be used _______ and should be stored in a _______ place. Choose one answer. a. diluted, warm b. diluted, cool c. undiluted, dark d. undiluted, light

there is more than one correct answer

5. Suppose you have a mixture of water and your 2-chloro-2-methylbutane product in a separatory funnel. Use densities to predict which phase will be the top layer in the funnel. a. 2-chloro-2-methylbutane (organic phase) b. water (aqueous phase) c. there would only be one phase since the substances are miscible

D. CI CI E. Nal acetone ONa DMSO (solvent)

H. OH H.

search for this information using the chemicals used in veterinary medicine that are in the image: 1. preliminary actions. If there is no information on preliminary actions, indicate that it does not apply. 2. Description of the substance disposal procedure (or correct use and handling of the equipment), here you must write: How am I going to get rid of the substance?, how to discard the substance, once we are done with it * search the MSDS and reliable sources for this information

None

Which of the following is true about heavy metals and their environmental impact? a. Coffee and tea waste could be viable options to rid water of heavy metals. b. Based on the study shown in class, coffee is definitively the best option to rid heavy metals from water. c. Coffee, tea and caffeine all remove heavy metals from contaminated water through absorption. d. Copper is the most prevalent metal found in drinking water that can cause harm to the environment and humans. e. Copper and zinc concentrations in drinking water are significantly higher in areas with human activity.

3

Use the following information to answer numerical-response question 10. Crude oil is separated into different groups of hydrocarbons, or fractions, in a fractional distillation tower. Two different locations at which fractions can be removed from the tower are labelled in the diagram below. Numerical Response Fractional Distillation Tower Crude oil K-11090 the greatest amount of CH4(g) is numbered the largest molecules is numbered molecules with the highest boiling points is numbered 10. Match the numbers of the locations in the diagram above with the descriptions of the fractions that could be removed as given below. The location with the fraction that contains molecules that are least attracted to one another due to weak intermolecular forces is numbered Location 1 190071 Location 2 zonirabi woll (Record in the first column) (Record in the second column) (Record in the third column) (Record your answer in the numerical-response section on the answer sheet.) (Record in the fourth…

20. Which of the following statements is not true about liquid-liquid extractions.   a. Polar solutes have a strong affinity for non-polar solvents.   b. Ionic solutes have a strong affinity for polar solvents.   c. Polar solutes have a strong affinity for polar solvents.   d. Polar solutes have a strong affinity for water.   e. Non-polar solutions have a strong affinity for non-polar solvents.

0.5درجات السؤال14 which of the following acid may be used for decalcification ? .1 a. 50% sulfuric acid b. 5% nitric acid c. 75% hydrochloric acid d. 70% formic Acid 0.5درجات الإنجليزية )الولابات المتحدة( 直 hp

O H 1. NaBH4 2. H₂O

Which of the following statements is not true?   a. It is okay to taste a chemical   b. No food or drink, including water, is allowed in laboratory   c. Read and re-read labels on containers of chemicals before opening them   d. Dispose the chemical waste to appropriate waste container

Predict the water solubility of each vitamin ? (File attached)

1. HgCl₂, H₂O 2. NaBH₁