What is the charge of the cloud? Small negatively charged particles called electrons are knocked off some ice and added to other ice as they crash past each other. This separates the positive (+) and negative (-) charges of the cloud. The top of the cloud becomes positively charged while the base of the cloud […]

What is a chemical equation that does not indicate relative amounts of reactants and products? Chapter 11 “Describing Chemical Reactions” A B skeleton equation chemical equation that does not indicate the relative amounts of the reactants and products products the elements or compounds on the right side of a chemical equation after the arrow (g) […]

What type of reactions do not obey the law of conservation of mass? But in nuclear fusion reaction if considered an example, energy that sun emits in its core is due to collision of hydrogen nuclei and formation of helium nuclei. Here conservation of mass is not obeyed as certain part of mass is converted […]

What does the mixture of hot and cold air have to do with the formation of a tornado? The warm air rises from the lower atmosphere causing an updraft, which mixes with the heavier cold air. This happens when the moisture in the air turns into water droplets and forms clouds. These three things together […]

What type of cell contains genetic material? nucleus Is there genetic material in nucleus? The nucleus is one of the most obvious parts of the cell when you look at a picture of the cell. It’s in the middle of the cell, and the nucleus contains all of the cell’s chromosomes, which encode the genetic […]

What are examples of flexible materials? Flexible Materials Paper-Based Flexible Materials. Cellulosic Paper (Wood Paper) based flexibles can have a resin binder or be bound by interwoven wood fibers. Films and Thin Gauge Sheets. Flexible Laminates. Elastomeric Materials. What are some materials we use everyday? We use a wide range of different materials daily; these […]

What are the conditions for an echo to be heard? The necessary conditions required to hear an echo are: There needs to be a minimum distance between the observer and the obstacle and that is equal to 17 m in the air. This distance may vary from medium to medium depending upon the sound’s speed […]

What solid has the highest density? What is the highest density solid in the world? Osmium, 22.6 g/cc. Iridium, 22.4 g/cc. Platinum, 21.45 g/cc. Rhenium, 21.2 g/cc. Uranium, 20.2 g/cc. Which has higher density solid liquid or gas? Physical Properties of Liquids. Density: The molecules of a liquid are packed relatively close together. Consequently, liquids […]

What is the chemical reaction of burning paper? The act of burning paper actually results in the formation of new chemicals (carbon dioxide and water, to be exact) from the burning of the wax. Another example of a chemical change is what occurs when natural gas is burned in your furnace. What reactants are needed […]

Does a heterogeneous mixture have the same composition throughout? A mixture is a combination of two or more substances in any proportions. The substances in a mixture do not combine chemically, so they retain their physical properties. A homogeneous mixture has the same composition throughout. A heterogeneous mixture varies in its composition. Which mixture looked […]