I can’t see a picture or question here, sorry
Answer:
The claim is untrue.
Explanation:
Given the information from the question. We need to evaluate the claim.
According to the phase rule we have F= C-P+2
In this particular situation, the forms are completely allotropic .In order words, they are conjured through the same chemical composition. Thus constituents C= 1, P=4 for four phases and the number variables is 2. As a result, F= C-P+2 =1-4+2= -1. Therefore, the claim is untrue.
Temporary hardness can be dealt with using boiling water(Calcium hydrogen carbonate) but Permanent won't so you need to use washing soda instead(sodium carbonate) or Ion exchange resin
65ml x 1.3 molar = 0.0845 moles solution #1
0.0845 moles / .208 L = 0.4 M
0.4M × 104 ml / 213 ml = .20 M after sig figs
Answer:
C - composition
Explanation:
Minerals can be classified based on their chemical composition which is expressed in their physical properties. Minerals are described by their physical properties which includes color, crystal form, hardness, density and luster.
The chemical composition is not only used for the classification of minerals, minerals are also classified by determination of internal structures accomplished through the use of X rays.