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Chemistry

What is the charge of the cloud?

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 […]

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What type of cell contains genetic material?

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 […]

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What are examples of flexible materials?

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 […]

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What are the conditions for an echo to be heard?

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 […]

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What solid has the highest density?

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 […]

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What is the chemical reaction of burning paper?

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 […]

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Does a heterogeneous mixture have the same composition throughout?

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 […]

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