What type of reaction is magnesium with hydrochloric acid? Oxidation – Reduction. Adding magnesium metal to hydrochloric acid produces hydrogen gas. The magnesium dissolves to form magnesium chloride, MgCl2. What type of reaction is MgCl2? Magnesium (Mg) combines with chlorine (Cl2) to form a new product as magnesium chloride (MgCl2). Therfore its a combination reaction […]
What is the biggest disaster in history?
What is the biggest disaster in history? Ten deadliest natural disasters by highest estimated death toll excluding epidemics and famines Rank Death toll (Highest estimate) Event 1. 4,000,000 1931 China floods 2. 2,000,000 1887 Yellow River flood 3. 830,000 1556 Shaanxi earthquake 4. 655,000 1976 Tangshan earthquake How do we reduce disaster risk? Reducing exposure […]
How do you know if a Bronsted acid is strong?
What is the relationship between rolling static and sliding friction?
What is the relationship between rolling static and sliding friction? Static, sliding, and rolling friction occur between solid surfaces. Static friction is strongest, followed by sliding friction, and then rolling friction, which is weakest. Fluid friction occurs in fluids, which are liquids or gases. What is the cause of friction What is the difference between […]
Why is the work output of a machine always less than the work input?
Why is the work output of a machine always less than the work input? Although nearly equal, the output work is less than the input work because of friction. All machines use some amount of input work to overcome friction. The only way to increase the work output is to increase the amount of work […]
What is the wavelength of light that has a frequency of 6 x 10 14 Hz?
What are some ecology questions?
What are some ecology questions? The Big Questions in Ecology and Evolution Why does life exist at all? What makes life different from non-life? Why do some individuals die and some live? How to do living things survive? How random is nature? Why don’t we live forever? Why do life forms look the way they […]
What three things are involved in making good decisions needed for driving?
What three things are involved in making good decisions needed for driving? Identify. Predict. Decide. Execute. What are the 3 steps in the driving task? Identify, Predict, Decide, and Execute (IPDE): This is the step-by-step process behind the principles of defensive driving and complexities of visual perception in traffic. Which of the following is the […]
Can you press charges against someone for making false accusations?
Can you press charges against someone for making false accusations? In California, the crime of false accusations is a misdemeanor and you can be prosecuted for it. The penalties for giving false information to the police are up to six months in jail and possible fines. Not everyone who has been charged with giving false […]
What happens when a fluid cools down?
What happens when a fluid cools down? Answer: When the fluid cools, the kinetic energy of the molecules decreases. This causes the molecules to slow down and move closer together. Since the molecules are closer together, the density of the fluid increases and the fluid sinks. What best describes how fluids change as they travel? […]