<h3>
Answer:</h3>
20% calcium and 80% Bromine
<h3>
Explanation:</h3>
- The percentage composition of an element in a compound is given by dividing the mass of the element in the compound by the relative formula mass of the compound and expressing it as a percentage.
- % Composition = (mass of element in 1 mole of compound /relative formula mass of the compound) 100%
Our compound is CaBr₂
Formula mass = 200 g
Relative atomic mass of Ca = 40.078
Relative atomic mass of Br = 79.904
Therefore;
% composition of Ca = (40.078/200) 100%
= 20.039
= 20 %
% composition of Br = (79.904×2)/200) 100%
= 79.904 %
= 80%
Therefore; the approximate % composition by mass of CaBr₂ is 20% calcium and 80% Bromine
The answer is B particles combine into a large amount of engery.
Because the tectonic plates (the continents) are spreading apart?
When multiple data streams are collected, one must decide how those data will be fused in the decision process. Separate data streams can be:
Mixed mode (including both quantitative and qualitative data).
Redundant (validating the data from another stream).
Complementary (providing measures of multiple characteristics of an object).
Supportive (helping verify some interpretation of another data stream).
