2Fe + 3O2 → 2Fe2O3 4Fe + O2 → 2Fe2O3 Fe + O2 → Fe2O2 4Fe + 3O2 → 2Fe2O3
2Fe + 3O2 → 2Fe2O3 4Fe + O2 → 2Fe2O3 Fe + O2 → Fe2O2 4Fe + 3O2 → 2Fe2O3
in future we do not have conventional resources then how to survive in earth??? if any body answers they are great
If Bob had $150 more in his savings account, he would have five times as much saved as he currently has in this account. How much does Bob currently have saved?
An express train takes 51/2 hours to travel between two cities. If the Express train takes only 3/5 of the time an ordinary train takes, how long will it take for the ordinary train to travel between...
i am now 14 years and i am a big fan of apple inc and i asked my strict father to get me one iphone but he said no and he also told that he knows when to buy but i want it now so how to convince him...
John drives from his house to the forest. The distance between his house and the forest is 873 meters. His average speed while driving is x km/hr. Write down an expression in terms of x for the...
LCD for 15, 18, 25
Which of the following is considered to be in direct line of human evolution and was more man like? (1) Proconsul (2) Dryopithecus (3) Ramapithecus (4) Australpithecus...
If a boats crew rowed 9 miles downstream with the current, in 1.5 hours. The return trip upstream, against the current, covered the same distance, but took 3 hours. Find the crews rowing rate and...
Replace the variables a and b with integers and solve for log a b = x by using the change of base formula. Show all work and use complete sentences to explain your steps in solving the logarithm you...
1. What is the difference between a sequence and a series? What is the difference between a geometric and an arithmetic sequence? 2. Please provide a real-world situation in which it would be...
1. Solve 2^x=32 and rewrite this equation in a logarithmic form. 2. Analyze the characteristics exponential and logarithmic functions. Make sure you talk about domain and range. 3. Demonstrate...
1. Why is it useful to know the definition of rational expression? Give an example of your own. 2. Why do we state restrictions for rational expressions? When do we state the restrictions? How...
A large faucet takes four minutes to fill a tank. A smaller force it takes 10 minutes to fill the same tank. What fraction of the tank will both faucets fill in one minute if they are both completely...
what are was poured into a tank to a height of 14 cm. A Nother 4416 cm to the third power of water was then poured into the tank until it reached its brim. What is the height of the tank? (H-14cm...
9 men take 4 hours to paint a house. How many hours will it take for three men to paint a similar house?
The volume of the water tank is 240 L. Water flows from a tap at a rate of 120 mL per second. How long does it take to fill 4/5 of the tank?
Two cups, two saucers and a teapot cost $30.20. The cup costs twice as much as the saucer. The teapot cost $7 more than the cup. What is the cost of the teapot?
A box containing 1000 marble has a mass of 67.06 kg. The mass of each marble is 0.05 kg. Find the mass of the empty box.
Dawn had 2/3 as much money as Dennis. Dennis had $90.90 how much money did Dawn and Dennis have all together?