Percent error can be calculated by the difference of the theoretical value and the measured value divided by the theoretical value multiplied by 100 percent.
% error = 27.26 - 27.2 / 27.26 x100
% error = 0.22%
A value close to zero would mean that the measured value is more or less near the actual value.
D = kinetic energy / net force (thrust minus gravity) when there's no drag. The E = formula is related to velocity and F = ma is related to acceleration. So in other words the rate of change of Force is proportion to the rate of change of acceleration multiplied by the scaler mass.
The general name of the elements whose properties are intermediate between those of metals and non-metals is known as metalloids.
Metalloid, in chemistry, is defined as an imprecise term used to describe a chemical element that forms a simple substance having properties intermediate between those of a typical metal and a typical non-metal. Most commonly used examples of metalloids are arsenic, boron, germanium, silicon, antimony, tellurium and pollanium.
We can identify metalloids in the modern periodic table by locating a zig-zag line which separates metals from non-metals. The borderline elements which are metalloids are - boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po) - This elements exhibit properties similar to both metals and nonmetals and are called metalloids.
Learn more about metalloids from the link given below.
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1) Decomposition
2) CaCO3 → CaO + CO2
equation is already balanced