Is 2 Fe O2 → Fe2O3 balanced? Fe + O2 → Fe2O3 is the unbalanced form of chemical reaction. Fe + 3O2→ Fe2O3 there are now 6 O atoms on the left, there must also be 6 O atoms on the right. Balance the rest of the equation. What type of reaction is Fe O […]
Which force is responsible for the elastic nature of a body?
Which force is responsible for the elastic nature of a body? Restoring force What is the difference between deforming force and restoring force? If this results in change in the configuration of length, volume or shape of the body then the force applied is called as deforming force. The force which restores the size and […]
What happens when you remove heat from a solid?
What is an example of a force vector?
What is true of activation energy?
What is true of activation energy? Activation energy is the amount of energy required to allow a reaction to occur. This energy is often used in the breaking of bonds in order to force a reaction to occur. Activation energy is mathematically defined in Arrhenius’ equation. What is the physical significance of activation energy? The […]
What is a good turning radius?
What is a good turning radius? What is a typical turning circle for a passenger car? A turning radius of 34′-35′ | 10.4-10.7 m is common for passenger cars today. Which car has the shortest turning radius? Smart Fortwo Which truck has the best turning radius? Top Five: Tightest Turning Circle Double-Cab Pickup Trucks 4: […]
Does anything contract when heated?
Does anything contract when heated? In normal materials, this vibration causes atoms to move apart and the material to expand. A few of the known shrinking materials, however, have unique crystal structures that cause them to contract when heated, a property called negative thermal expansion. Does Wood shrink or expand in cold? Heat will make […]
What are the effects of having holes in the ozone?
What are the effects of having holes in the ozone? The thinning is most pronounced in the polar regions, especially over Antarctica. Ozone depletion is a major environmental problem because it increases the amount of ultraviolet (UV) radiation that reaches Earth’s surface, which increases the rate of skin cancer, eye cataracts, and genetic and immune […]
How do you get rid of topsoil?
How do you get rid of topsoil? How to dispose of unwanted soil Use a waste clearance service. You could organise for a waste clearance service to come and collect your soil and garden waste. Hire a skip. For garden waste removal, you could also consider hiring a skip. Advertise locally. Use it for a […]
What is properties of mixtures?
What is properties of mixtures? General Properties of Mixtures Mixtures are made up of two or more substances that are not chemically combined with each other. The components of a mixture each keep their original properties. The separation of components can be easily done. The proportion of the components is variable. What is importance of […]