A density of a substance is constant. It is an extensive property, meaning it does not depend on the amount of substance because it is a ratio of mass to volume. No matter how much of each there is, they would always have a fixed ratio called density. For lead, the density is
Density = mass/volume
Density = 23.94 g/ 2.10 cm³
Density = 11.4 g/cm³
Amine is the class of organic compounds that contains nitrogen
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<em>Answer:</em> 20 m/min east
<em>Explanation:</em> The speed is distance divided by time
distance between start-point and end-point = 100 meters
<em>time to cover the distan</em>ce = 5 minutes
100 m ÷ 5 min = 20 m/min east
y<u>ou have to add east since velocity is the measure of speed and direction and your answer needs to include the direction</u>
Answer:Videos
For example, when oxygen and hydrogen react to produce water, one mole of oxygen ... These conversion factors state the ratio of reactants that react but do not tell ... In a typical chemical equation, an arrow separates the reactants on the left ... For example, to determine the number of mol
Answer:
See explanation below
Explanation:
In an electrochemical cell, electricity is obtained by the gradual deterioration of the anode.
Hence, surface area of the metal will affect the length of time within which the electrochemical cell works.
The greater the surface area of the metal, the longer the electrochemical cell can function and the greater the quantity of electricity produced, hence the answer above.