Solid calcium phosphate and aqueous sulfuric acid solution react to give calcium sulfate, which comes out of
Question:
Step by Step Answer:
Balance Ca 3 PO 4 2s H 2 SO 4 aq CaSO 4 s H 3 PO 4 aq Balance Ca first with a 3 i...View the full answer
Related Video
The experiment aims to show the impact of various beverages on teeth by using eggs as a representation of enamel. Three eggs are boiled and then placed in glasses filled with fizzy drinks, vinegar, and mango juice for 24 hours. The shells of eggs are similar to enamel as they are composed of calcium carbonate, and enamel is primarily made of calcium phosphate. The eggs are then observed to demonstrate the effects of the different liquids on teeth and the importance of brushing regularly. The egg placed in fizzy drink has turned dark in color but can be cleaned by brushing with toothpaste and rinsing with water. The egg placed in vinegar has had its shell softened due to the chemical reaction of vinegar and calcium carbonate, which can\'t be reversed. This highlights the fact that acids are more damaging to teeth than other substances. The egg placed in mango juice represents the process of bacteria in the mouth converting sugars and starches into acids that form plaque, which can be prevented by brushing. The use of fluoride in toothpaste is also highlighted as it slows down the demineralization process and protects the enamel. The importance of brushing teeth twice a day is emphasized.
Students also viewed these Physical Chemistry questions
-
Write a balanced equation for each reaction. (a) (b) (c) (d) H SO, heat CH3 CH2CH-CH NaOC(CH3 3 Br Br Nal CHCH CH-CH acetone NaOH, heat CH3 CH CCH3 Br
-
A 5.00-wt% aqueous sulfuric acid solution (p = 1.03g/mL) flows through a 45-m long pipe with a 6.0cm diameter at a rate of 87L/min. (a) What is the morality of sulfuric acid in the solution? (b) How...
-
Two aqueous sulfuric acid solutions containing 20.0 wt% H 2 SO 4 (SG = 1.139) and 60.0 wt% H 2 SO 4 (SG = 1.498) are mixed to form a 4.00 molar solution (SG = 1.213). (a) Calculate the mass fraction...
-
Identify and discuss three ways that tourism and hospitality businesses can maintain a long-term relationship with their clients
-
Why might the auditor choose to NOT confirm accounts receivable?
-
The government-wide financial statements for the City of Arborland for a three-year period are presented below. Additional information follows: Population: Year 2020: 30,420, Year 2019: 28,291, Year...
-
The exhaust gas from a two-stroke cycle compression-ignition engine is exhausted at an elevated pressure into a large chamber. The gas from the chamber is subsequently expanded in a turbine. If the...
-
The population y (in thousands) of Raleigh, North Carolina, from 2000 to 2014 can be approximated by the model y = 11.09t + 293.4, 0 ¤ t ¤ 14, where t represents the year, with t = 0...
-
Consider a version of the Knapsack problem in which every item has the same weight (say the weight is 1). In this case the problem is simpler and we can use a greedy algorithm to solve the problem....
-
Robert Su and Carol Tso are senior vice presidents of Ping An Insurance (Group) Company of China Ltd. Sus main responsibility is fixed income securities (primarily bonds) and Tso being responsible...
-
Balance the following equations. a. Cl2O7 + H2O HClO4 b. MnO2 + HCl MnCl2 + Cl2 + H2O c. Na2S2O3 + I2 NaI + Na2S4O6 d. Al4C3 + H2O Al(OH)3 + CH4 e. NO2 + H2O HNO3 + NO
-
Calculate the formula masses of the following compounds, using a table of atomic masses. Give the answers to three significant figures. a. Nitrogen dioxide, NO2. b. Glucose, C6H12O6. c. Sodium...
-
In Exercises 3750, graph each ellipse and give the location of its foci. (x-4)2 = 1 4 25
-
dy Let zy 2 and 5. dt da Find when = 2. dt
-
h(x, y) = 2xy + 3x + 4x y + 8 == What is the value of h(x,y) x when x = -3.3 and y = 1.4?
-
Interpret each of the ratios. Review the Financial Ratios Guidelines document for direction. Do you see any red flags? How profitable is the company in relation to sales? How profitable is it in...
-
Blueberry PLC has 191 million shares outstanding and it repurchases7% of them at the current market price of 9.91 per share. What to the nearest million is the total market value of equity after the...
-
1. Please answer following questions: a. In the specific case of a one- sample t-test, what is the relationship between N and the degrees of freedom? b. What happens to the relationship between tand...
-
The United Nations Development Programme (UNDP) uses the Human Development Index (HDI) in an attempt to summarize in one number the progress in health, education, and economics of a country...
-
Consider model (9.18). What is the effect on the model parameter estimates, their standard errors, and the goodness-of-fit statistics when (a) The times at risk are doubled, but the numbers of deaths...
-
A few hydrogen and oxygen molecules are introduced into a container in the quantities depicted in the following drawing. The gases are then ignited by a spark, causing them to react and form H 2 O....
-
You perform the hypothetical reaction of an element, X 2 (g), with another element, Y(g), to produce XY(g). a. Write the balanced chemical equation for the reaction. b. If X 2 and Y were mixed in the...
-
Solid ReO3 is a material that is an extremely good conductor of electricity. It can be formed by the chemical reaction Re(s) 1 3Re 2 O 7 (s) 7ReO 3 (s). If 3 mol of Re and 3 mol of Re 2 O 7 are...
-
Wanda is reviewing her tax returns from the previous year and is shocked at how much tax she paid the government. She had good income but had to pay a large number of self-employment taxes on top of...
-
Katies Cleaning Service has cleaning contracts for 15 apartments, 45 family homes, and 25 office buildings. She estimates that an apartment takes 4 hours to clean, a home takes 6 hours to clean, and...
-
1. Quikpak sells returnable containers to major food processors. The price received for the containers is 2 per unit. Of this amount 1.25 is profit contribution. Quikpak is considering an attempt to...
Study smarter with the SolutionInn App