How many grams of water are made from the reaction of 16.0 grams of oxygen gas? Given the reaction: 2H_(2)+O_(2)arrow 2H_(2)O 16 36 18 9 not enough information
Rough Study Guide for Quiz 3 1. Name ionic and covalent compounds 2. Find the molar mass of compounds 3. Where in a reaction are the reactants and products. 4. Significant figures 5. What are the Types of chemical reactions. 6. Be able to draw and identify free body diagrams. 7. Calculate net force. 8. Calculate forces on an incline 9. Newton's first law of motion 10. Use periodic table to find charge of elements. 11. Balance chemical equations 12. What is the difference between mass and weight? 13. Be able to calculate frictional force. 14. Use net force to find net acceleration of an object.
Thinking of the Fire Triangle: There are 5 elements required for a fire to ignite and burn. Select the correct answer. True False
Dissolvem -se 2 g de NaOH em água suficiente para ul litro de solução. A solucão resultante , d 25^circ C apresenta: Selecione uma opção: a pOH=pH b. 2,7 C pH=12,7 d. pH=1,3 e pOH=12,7
Compare and contrast the chemical structures of the four groups of biological molecules (the molecules of life).
The Collision Theory Model describes the following The effects of adding a catalyst Criteria necessary for a reaction to take place How instantaneous a reaction is The relationship between orientation and temperature of reactants
1. Calculate the pH values for the following solutions a) the acid solution with [H^+]=0.002M b) 0.01M HCl aqueous solution c) 0.01 M NaOH aqueous solution d) an aqueous solution with pOH=10.3
Calculate the percent composition of aspirin (C_(9)H_(8)O_(4))
What is the formula mass of aspirin (C_(9)H_(8)O_(4))
The pHofa fruit juice is 5.6.Find the hydronium ion concentration, [H_(3)O^+] of the juice. Uso the formula pH=-log[H_(3)O^+] The hydronium ion concentration [H_(3)O^+] is approximately square moles per liter. (Use scientific notation. Use the multiplication symbol in the math palette as needed. Round to the nearest tenth as needed.)
E What is the total atmospheric pressure if the partial pressures of $N_{2},O_{2}$ , and Ar are 6045 mm Hg. 162.8 mm Hg , 0.5 mm Hg. respectively?
What are the isotopes of lodine used for? Prevent tooth decay Plants and Agriculture Cancer Treatments Bone healing
There are more than 500 chemicals in marijuana, but about 100 of them are unique to the Cannabis plant, these are called cannabinoids. THIQs. opioids. butyrates.
d. What is the volume of 03620 mol He at STP?
Please answer in complete sentences: 5. What is the meniscus of a liquid and how does a scientist use the meniscus? __
Identify the correct chemical equation when copper(II) sulfate reacts with zinc to form zinc sulfate and copper? $CuSO_{4}+Zn\rightarrow Cu+Zn$ $CuSO_{4}+Zn\rightarrow ZnSO_{4}+Zn$ $CuSO_{4}+Zn\rightarrow CuSO_{4}+Zn$ $CuSO_{4}+Zn\rightarrow ZnSO_{4}+Cu$
Which of the following species can be Bronsted -Lowry acids? Check all that apply. $SO_{4}^{2-}$ D $I_{2}$ $Cl^{-}$ $H_{2}SO_{4}$ None of the above
What mass of carbon (in g) is present in $8.02\times 10^{23}$ formula units of $Al_{2}(CO_{3})_{3}$ $\square $
Which of the following is a common property of acids? Corrosive Conducts electricity All of these Sour taste
3. ¿Cuál es la masa molar de $K_{2}SO_{4}$ (2 puntos)
