Is tin a carcinogen? Experimental studies have failed to reveal any evidence of carcinogenicity, mutagenicity, or teratogenicity. Recent studies suggest that tin compounds exhibit some antitumour activity and may have a future role in cancer diagnosis and chemotherapy, and in controlling hyperbilirubinaemia. Was lead used in tin cans? By 1813 they were producing their first […]
What is combination reaction with example?
What is combination reaction with example? When two or more reactants combine with each other to form a new product it is called as combination reaction. Combination reaction is also known as synthesis reaction. For example hydrogen gets combined with chlorine to from hydro-chloride. What are five factors that affect the rate of a chemical […]
Why is acceleration due to gravity more at poles?
Why is acceleration due to gravity more at poles? It is frequently stated that the value of the acceleration due to gravity at the pole is larger than at the equator because the poles are closer to the center of the earth due to the earth’s oblateness. The measured value is larger because the earth’s […]
Can an umbrella kill you?
Can an umbrella kill you? Beach umbrellas have caused at least one death. In 2016, Lottie Michelle Belk was killed when an errant parasol pierced her torso while she was on holiday in Virginia Beach. “As you know, beach umbrellas provide beachgoers the benefits of shade on hot and sunny days at the shore,” the […]
What is a consequence of the high specific heat of water?
What is a consequence of the high specific heat of water? Because of its high heat capacity, water can minimize changes in temperature. For instance, the specific heat capacity of water is about five times greater than that of sand. The land cools faster than the sea once the sun goes down, and the slow-cooling […]
Is it bad to leave a sponge in water?
Why is there an attraction between two ions?
Why is there an attraction between two ions? Ions form when atoms gain or lose electrons. Ionic bonding is the attraction between positively- and negatively-charged ions. These oppositely charged ions attract each other to form ionic networks (or lattices). Electrostatics explains why this happens: opposite charges attract and like charges repel. What are the rules […]
What is the function of receptors in human body what are the types of receptors found in humans what problems are likely to occur if receptors do not work properly?
What is the function of receptors in human body what are the types of receptors found in humans what problems are likely to occur if receptors do not work properly? Ans: Receptors are present in our all parts of the body for example in skin, eye, nose tongue etc. They detect the signals and then […]
What causes the current to flow in a conductor?
What causes the current to flow in a conductor? An electrical phenomenon is caused by flow of free electrons from one atom to another. The characteristics of current electricity are opposite to those of static electricity. Wires are made up of conductors such as copper or aluminum. Current flows from positive to negative and electron […]
How long do Springs last in a car?
How long do Springs last in a car? However, depending on their application to the vehicle, many coil springs can last the lifetime of the vehicle. There really is no expiration date on coil springs, but there are a few things to check for when inspecting your suspension. What causes a broken spring on a […]