Changing the Rate of Reaction PART 1: PARTICLE SIZE Question: How does changing the particle size of marble (CaCO3) affect the rate of reaction when it is added to hydrochloric acid (HCl)? Hypothesis: If I change the particle size of marble to test how to change the rate of a chemical reaction‚ than the chemical reaction with the smallest marble particles will produce CO2 the quickest because the larger the surface area‚ the more place the hydrochloric acid will have to collide with the marble
Premium Hydrochloric acid Chemical reaction Chemistry
Deven Lorenzo Leonis was born on December 9th‚ 1997. Deven was born with a heart disease and was in and out of the hospital his whole life. When Deven was 12 years old‚ he started to get very sick. He would have sore throats all the time‚ and he never had any energy. After a few years of not knowing what was wrong‚ Deven went to his doctor. In November‚ 2011‚ Deven had his tonsils and adenoids taken out. While he was in recovery‚ the doctors had told Deven’s mother that they had found a white substance
Premium Cancer Metastasis
The CFO can forecast exchange rates by using either of two approaches‚ fundamental forecasting or technical forecasting. Fundamental forecasting uses trends in economic variables to predict future rates. The data can be plugged into an econometric model or evaluated on a more subjective basis. Technical forecasting uses past trends in exchange rates themselves to spot future trends in rates. Technical forecasters‚ or chartists‚ assume that if current exchange rates reflect all facts in the market
Premium Currency United States dollar Money
UNITED STATES INFLATION RATE The inflation rate in United States was last reported at 1.10 percent in August of 2010. From 1914 until 2010‚ the average inflation rate in United States was 3.38 percent reaching an historical high of 23.70 percent in June of 1920 and a record low of -15.80 percent in June of 1921. Inflation rate refers to a general rise in prices measured against a standard level of purchasing power. The most well known measures of Inflation are the CPI which measures consumer prices
Premium Inflation
Sequence and Rate of Development What is meant by the sequence of development? Sequence of development means that the growth of a child takes place in a structured order with a series of changes or growth that leads to a matured state. The sequence of development depends on events that have previously happened. An example of this is that a baby will first start to roll and at around 6 – 7 months will try to sit up and soon after this they will start to crawl using their arms and legs.
Premium Infant Developmental psychology Childhood
Oil and gasoline prices had been a problem since individual vehicles had actually entered the market. After the Katrina United States current economic growth is not even sustainable under the recent oil price surge. Even though the Department of Energy does not feel that oil prices are high enough to cause a recession‚ the consequence of high energy costs cannot go unaddressed. Government has to start looking and actually spending money on solutions to this consumption problem immediately. This
Premium Peak oil
Bond Interest and Principal Payments A bond is a type of long-term debt that is issued by a corporation and is purchased by an investor for cash. A formal contract is issued by the corporation that states the legal terms of the bond. The advantages of issuing a bond from a corporation is that the ownership interest of the bondholders will not be diluted and those bonds are available at lower costs than the common stocks available. After a bond is issued by the corporation‚ the bondholder is promised
Premium Finance Money Stock
CONTEXT In the given assignment there is an organization which is facing issues like high attrition rates ‚mostly due to lack of motivations and attitude of employees. INTRODUCTION An organization is a separate legal entity comprising of multiple people‚ who come together to achieve a common goal. To achieve that goal there is need of a proper structure and management which brings everyone in an organization on common platform. If in an organization people are not brought
Premium Management Employment Organization
Military Divorce Rates and the Age Blended Families Your Name Please Park University Military Divorce Rates and the Age Blended Families Military Divorce rate In American society‚ the divorce rate is high as compared to other developed countries of the world. In 2001‚ before the start of Afghanistan war‚ the military divorce rate was just 2.5%. Today‚ this rate jumped to 3.9%‚ a significant change. The risk of divorce is limited to men‚ but women are also at the higher risk (Harper‚ 2011)
Premium Marriage Divorce Alimony
Bonus assignment 1. For April 30‚ 2013 Federal funds rate – 0.13 Federal Reserve discount rate – (Discount window primary credit) - 0.75 For December 23‚ 2005 Federal Reserve– 4.23 Discount rate – 5.35 As we can see from the information above‚ the short-term rates have decreased since the end of 2005 (4.230.13; 5.35 0.75) 2. The schedule of minutes can be found on http://www.federalreserve.gov/monetarypolicy/fomccalendars.htm and the press releases can be found on the News&Events
Premium Monetary policy Central bank Interest rate