Answer:
36.51%.
Explanation:
First find the percentage of iron in pure Fe2O3 using the atomic masses of the elements:
= (2 * 55.845) * 100 / (2*55.845+ 3*15.999)
= 69.94 %.
So the percentage of iron in the mixture
= 52.2 * 0.6994
= 36.51 (answer).
A water wave traveling in a straight line on a lake is described by the equation
y(x,t)=(3.75cm)cos(0.450cm?1x+5.40s?1t)
where y is the displacement perpendicular to the undisturbed surface of the lake.
Answer:
Waterwould be the best choice
Explanation:
<em>The specific heat capacity</em> refers to how much energy is required to raise the temperature of an object. The higher the specific heat capacity, the more energy is required to heat a given substance. This would also mean that w<u>ith a higher specific heat capacity, a substance would be able to retain more heat</u>.
With the above statements in mind, water would be the best choice, because it would retain more heat than the other substances once it reaches 100 °C, and in turn water would emit the most heat while it cools.
Their ability to lose that electron easily. This property is electronegativity. Once that electron is taken away, the atom becomes an ion with a charge of +1. The ion would be much more stable than the atom, because once the electron is lost, the shell underneath will already have 8 electrons that resembles the configuration of a noble gas.
Answer:
Non-reactors
Explanation:
Kitchen wares should preferably be non-reactors to prevent them from reactiong with food.
Reactions between food substances and wares lead to production of untested and unsecure reaction results.
The production of this predictably hazardous results may result to food poisoning thereby threatening human life.
