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Word equation - is a way of describing a reaction using the chemical names of the reactants and products. Balanced symbol equation - describes a reaction using a symbol equation with coefficients, which ensure there are equal numbers of atoms of each element on both sides of the symbol equation. Coefficient - is the number placed in front of a ...
In conservation of mass, the maths skills being used are addition and subtraction. The masses of the chemicals before the reaction can be added together. The total will be the same as the sum of ...
Jan 10, 2024 · Mass is the amount of matter in a body or a measure of its inertia. Mass is a fundamental concept in science. Basically, it is the amount of matter in an object. It’s an intrinsic property that is independent of an object’s location or the arrangement of the matter within it. Unlike weight, mass doesn’t change when an object’s position ...
Dec 9, 2023 · For example, the photosynthesis reaction takes carbon from the air and fixes it into a glucose molecule. Photosynthesis does not create mass, nor is any lost in the process. References. Okuň, Lev Borisovič (2009). Energy and Mass in Relativity Theory. World Scientific. ISBN 978-981-281-412-8. Pomper, Philip (1962).
Mar 12, 2024 · In physics, a conservation law is a statement that the total amount of a certain physical quantity always stays the same. This chapter is about conservation of mass. The metric system is designed around a unit of distance, the meter, a unit of mass, the kilogram, and a time unit, the second. Numerical measurement of distance and time probably ...
Example 2: Calculating Mass. A cat has volume 0.004 m ^3 and density 980 kg/m ^3. Calculate the mass of the cat. [2 marks] We’re looking for mass, so constructing the triangle and covering m, we see that to calculate the mass we must multiply the density by the volume. So. \text { Mass } = 980 \times 0.004 = 3.92 kg.
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Q8. Why should the Law of conservation of mass be considered the Law of conservation of mass and energy? Answer. The mass of the products in nuclear reactions is observed to be less than the mass of the reactants. According to Einstein’s equation, E=Δmc 2, the difference in mass, known as the mass defect, is converted into energy. As a ...
