Items can be dissolved faster when adding heat in the process, when the size of particle is small but the surface area is very large in the process, when stirring is used to mix the solution or to increase the rate of reaction.
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Explanation:
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All the above methods are correct and useful to increase the dissolving rate of items in a process or reaction. By increasing heat the rate of reaction increases gradually because the heat provides energy to the molecules and force them to leave the shell and react rapidly.
When having a large surface area the dissolving time gradually decreases because the size of the particle is comparatively smaller. Stirring helps in mixing the solution due to which the molecules reacts fast and the item’s reaction and dissolving time gradually decreases.
It's A, a female doctor wearing a hijab
error would result in the volume measurement too small.
The weighted volume would weigh less without the air bubbles because they are lighter than the material they have replaced.
Due to the fact that d = m/v and that if m is low, then d will also be low, this would result in a low side inaccuracy in the density.
<h3>What distinguishes the two concepts of volume and mass density?</h3>
Mass Density vs. Volume. Air pockets form between the granules when you use a graduated cylinder to measure the volume of a solid, such as salt that is granulated. This decreases the measurement's precision. When air bubbles are trapped inside a solid, they take up space, which reduces the solid's density and somewhat inflates the volume measurement.
<h3>How do air bubbles impact a solid's density?</h3>
When air bubbles are trapped inside a solid, they take up space, which reduces the solid's density and somewhat inflates the volume measurement. Compact the solid using the end of a small pestle, rubber "policeman," or stirring rod to lessen the effects of air bubbles in solids.
Learn more about density:
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Answer:
Experimental Research Design
Explanation:
Experimental Research Design is a scientific research design in which observations are examined under controlled conditions. It implies examining effect of independent variable on dependent variable, where independent variable is manipulated through interventional treatment & those interventions' effect on dependent variable is observed.
'Assessment whether classical music increases child's creativity' is Experimental Research Design. As : Independent Variable - classical music is provided & not provided to two groups (respectively) in controlled environment, and its impact on Dependent Variable - Creativity test ; is observed.
