Predict your observation if a magnesium ribbon is put in potassium hydroxide solution and tested with a lighted wooden splinter.​

Answers

Answer 1

mg reacts with the acid and produce visible bubbles of hydrogen gas. they will produce audible pops as the hydrogen ignites. ... Hydrochloric acid is a corrosive liquid. Hydrogen gas is explosive.


Related Questions

Allicin is the compound responsible for the characteristic smell of Garlic. An analysis of the compound gives the following percent composition by mass; C = 44.4 percent, H = 6.21 percent. S = 39.5 percent, O = 9086 percent. Calculate its empirical formula. What is its molecular formula given that its molar mass is about 162 g?

Answers

Answer:

The empirical formula is same as the molecular formula = C6H10S2O

Explanation:

we start by dividing the percentage of each of the elements by their atomic mass

Carbon = 44.4/12 = 3.7

Hydrogen = 6.21/1 = 6.21

Sulphur = 39.5/32 = 1.234375

oxygen = 9.89/16 = 0.618125

That of oxygen is smallest so we divide all by that of oxygen

C = 3.7 / 0.618125 = 6

H = 6.21/ 0.618125 = 10

S = 1.234375/ 0.618125 = 2

Automatically, oxygen is 1

So the empirical formula is;

C6H10S2O

Let’s get its molecular formula. We multiply each of the subscript by the number;

(72 + 10 + 64 + 16)n= 162

162n = 162

n = 1

So the molecular formula is same as the empirical formula

Potassium atoms contribute one eletron to metallic bonding,but calcium atoms contribute two eletrons .Explain which metal is likely to be harder

Answers

Answer:

potassium is likely to be harder

Explanation:

because whenan atom loss electron they can form particle ion acquare stable a arrangement that loos electron can transfer to another which that also to acquaire stable

Other Questions
Which choice is an opinion disguised as a fact?A. Einsteins best theory was the theory of relativity.B. Albert Einstein wrote theories that changed science and philosophy.C. Many of Einsteins theories focused on the concepts of space, time, and gravity.D. Einstein also wrote a theory on gravitation that is different than Newtons theory on gravitation. Any help would be great what are the steps of enzyme activity? 1. Calculate the pH of a 0.35 mol/L solution of ammonia. what does " viceroy" and "legate mean in the Christian world and who do they work for? Assume you can buy 52 British pounds with 100 Canadian dollars. How much profit can you earn on a triangle arbitrage given the following rates if you start out with 100 U.S. dollars? What similarity property, if any, can be used to show that the following two triangles are similar A. Not enough information given B. AAC. SASD. SSSPlease answer this What is the missing number that will complete thefactorization?681224 Use the compound interest formulas A = Pert and A = P(1 + ) to solve. Suppose that you have $11,000 to invest. Which investment yields the greater return over 10 years: 6.25% compounded continuously or 6.3% compounded semiannually? Show your work Which of he following is a secondary alkanol? a. CH3CH2CH2OH b. CH3CH2CH2CH2OH c. C(CH3)3OH d. CH3CH(OH)CH3 For what reasons did Columbus wish to travel to the Indies? Suppose you have a linear integer optimization problem. You solve the problem as a linear optimization problem by ignoring the integer constraints and obtain an integer optimal solution (i.e., your model did not require the variables to be integer, but it turned out when you solved the problem Solver found an optimal answer where the variables are integer).Which of the statements below are correct (choose only one):A. You can categorically state that you have the optimal solution to the integer optimization problem.B. You can categorically state that you do not have the optimal solution to the integer optimization problem.C. None of the above. Some college professors make bound lecture notes available to their classes in an effort to improve teaching effectiveness. A study of business student's opinions of lecture notes. Two groups of students were surveyed - 86 students enrolled in a promotional strategy class that required the purchase of lecture notes, and 35 students enrolled in a sales/retailing elective that did not offer lecture notes. At the end of the semester :"Having a copy of the lecture notes was helpful in understanding the material." Responses were measured on a nine-point semantic difference scale, where 1="strongly disagree" and 9=" strongly agree." A summary of the results is reported in the follow:Classes Buying Lecture Notes Classes Not Buying Lecture Notesn1=86 n2=35X1=8.48 X2=7.80S21=.94 S22=2.99a. Describe the two populations involved in the comparison.b. Do the samples provides sufficient evidence to conclude that there is a difference in the mean responses of the two groups of the students? Test using =.01c. Construct a 99% confidence interval for (1-2). Interpret the result.d. Would a 95% confidence interval for (1-2) be narrow or wider than the one you found in part c? Why? An iron pipe of internal diameter 2.8cm and Uniform thickness 1mm is melted and a solid same length is formed. find the diameter of the rod . cylindrical rod of the rod i will give brainliest if correctWhich two sentences describe the characteristics of a corporation?The company is treated as a separate tax entity by law.The owners have to accept partial liability for debts.It is possible to raise large amounts of capital by selling company stock.The owners are known as corporators. 7. What volume of a 0.10 mol/l HCl solution is needed to neutralize 10 ml of a 0.15mol/l LiOH solution (5 points) Whats the correct answer for this question? Umatilla Bank and Trust is considering giving Pohl Company a loan. Before doing so, it decides that further discussions with Pohls accountant may be desirable. One area of particular concern is the Inventory account, which has a year-end balance of $275,000. Discussions with the accountant reveal the following.1. Pohl Company sold goods costing $55,000 to Hemlock Company FOB shipping point on December 28. The goods are not expected to reach Hemlock until January 12. The goods were not included in the physical inventory because they were not in the warehouse.2. The physical count of the inventory did not include goods costing $95,000 that were shipped to Pohl Company FOB destination on December 27 and were still in transit at year-end.3. Pohl Company received goods costing $25,000 on January 2. The goods were shipped FOB shipping point on December 26 by Yanice Co. The goods were not included in the physical count.4. Pohl Company sold goods costing $51,000 to Ehler of Canada FOB destination on December 30. The goods were received in Canada on January 8. They were not included in Pohl Company physical inventory.5. Pohl Company received goods costing $42,000 on January 2 that were shipped FOB destination on December 29. The shipment was a rush order that was supposed to arrive December 31. This purchase was included in the ending inventory of $275,000.Required:Determine the correct inventory amount on December 31. Part 31. Be sure your work is shown and steps are in order.2. List all the possible rational roots. 3. Use synthetic division to test the possible rational roots and factor possible.4. Identify complex roots if possible.5. Sketch a graph of the function, please show: a. the end behavior correctly b. the shape of the near x-intercepts c. (if possible) anything you can learn by considering symmetry and transformations.3a. p(x)= 2x^5 - 9x^4 + 6x^3 + 22x^2 - 20x - 25 What is the genotype of the male circled in pink?