science(chem) Please check by today
 👍
 👎
 👁
Respond to this Question
Similar Questions

profit and loss
a businessman purchased certain items worth rs. 1200 and after selling some items at the end of the first day made a profit of 16 % on items sold on that day. if his profit for the day was 4 % of his total purchases what is his

Geometry
Given: KL ║ NM, LM = 45, m∠M = 50° KN⊥NM, NL ⊥ LM Find: KN and KL So I drew it found that m∠K=90°, m∠LNM=40°, m∠KNL=50° using the rules of trigonometry, I got: (NL/45) =tan(50°) and that NL=53.63 I checked it

mathdistinguishability
A library has six identical copies of a certain book. At any given time, some of these copies are at the library and some are checked out. How many different ways are there for some of the books to be in the library and the rest

Math
The probability that a person stopping at petrol pump will get his tyres checked is 0.12, the probability that he will get his oil checked is 0.29 and the probability that he will get both checked is 0.07. A) what is the

Math
A stock increased in value by 7% on Wednesday and then decreased in value by 4% on Thursday. What was the net percentage increase in the value of the stock from the end of the day on Tuesday to the end of the day on Thursday?

statistics
Commercial airliners have a maximum allowable weight of passenger checked baggage. It is known that the distribution of individual passengers checkedin baggage weight has a mean of 42 pounds and a standard deviation of 25 pounds.

Computer Programming
I must write a program using Java that calculates the amount a person would earn over a period of time if his or her salary is one penny the first day, two pennies the second day, and continues to double each day. The program

Math
A cup of coffee has cooled from 98degreesC to 50degreesC after 15 minutes in a room at 25degreesC. How long will it take to cool to 40degreesC? Someone else helped me on a problem similar to this, however I keep getting it

math problem
If I say I will give you a penny on the first day, 2 pennies on the second day, 4 pennies on the third day, and I just keep doubling and do this for a month, How much money would you have at the end of the month???

profit and loss
a businessman purchased certain items worth rs. 1200 and after selling some items at the end of the first day made a profit of 16 % on items sold on that day. if his profit for the day was 4 % of his total purchases what is his

Physics
Because Earth's rotation is gradually slowing, the length of each day increases: The day at the end of 1.0 century is 1.0 ms longer than the day at the start of the century. In 72 centuries, what is the total (in hours) of the

Algebra
marie730 the temperature at the end of the day was 64 degrees. the temperature has increased twice during the day,once by 8 degrees and another time by 4 degrees which expression shows what the temperature was at the start of the
You can view more similar questions or ask a new question.