Review I Constants I Peri 119 g of 1.1 % NaNO3 solution by mass MISSED THIS? Read Section 14.5 (Pages 594 - 601) ; Watch KCV 14.5 . Express your answer using two significant figures. • View Available Hint(s) How much dry solute would you take to prepare each of the following solutions from the dry solute and the solvent? g NaNO3 msolute %3D

When using eucalyptus essential oil on children, it should be: (Select all that apply.) Choose at least one answer. a. used only on the chest b. kept away from the face c. kept away from the soles of the feet d. diluted

Which of the following would give a positive Benedict's test? Check all that apply. A

I have no idea how to do the rest please help

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#7 Name: Date: Section: Prelaboratory Assignment: Determination of the Hardness of Water A 0.512 g sample of CaCO3 is dissolved in 12 M HCl and the mixture is diluted to 250 mL. a) How many moles of CaCO3 are used? moles b) What is the [Ca²+] in the 250 mL solution? b) How many moles of Ca²+ are in a 25 mL sample of the 250 mL solution? moles 4. mall amount of MgCl₂ solution is added to a 25 mL aliquot of the solution in problem with EDTA to the Eriachrome Black T end point. The mixed nd point. A similar amount of

Assessment 1 subparts 1-2

Assessment 1 Direction: Analyze the following situations below. Then, answer the following questions: 1. Ana has had a skin problem since she was in high school. Her facial skin is dry, and lots of acne starts to appear. What should be the main ingredients in her skincare products to help solve her problem? 2. Cristina wants to achieve a fair complexion while protecting her skin to direct sunlight. What cosmetic ingredients should her face cream and lotion contain? 3. Whenever Robert shops in the market, he sees that the cosmetics he buys do not expire quickly. What ingredients should be included in cosmetic product labels to ensure the shelf-life and prevent microorganisms' build-up in the products?

What type of changes does erosion cause?

What is the main function of a subbase in road construction? A) To provide a smooth riding surface B) To distribute traffic loads C) To reduce noise D) To improve drainage