You are a little skeptical the alloy provided by the slick sales rep has a requisite percentage of copper required for anti microbial properties. So, you check online with the EPA approved manufacturer and the alloy produced by the company is 96.2% copper with
a density of 8.89 g/cm3
The size of the cylindrical sample is 0.52 cm radius and a height of 7.00 cm. What is the
volume of the cylinder in cm3?

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

un recipient conține 6,4 moli de gaz. gazul hidrogen reprezintă 25% din totalul kilometrilor din container. în cazul în care presiunea totală este de 1.24 atm ceea ce este