Answer:
the answer rounded to the nearest hundredth is 0.63
Explanation:
Mixtures are impure substances composed of two or more substances physically combined.
<h3>What are mixtures?</h3>
Mixtures are substances that are composed of two or more substances physically combined.
Mixtures are one of the different types of substances which are composed of matter.
The classification of matter by type of substance is as follows:
- Matter - Pure and impure substances or mixtures
- Pure substances - elements and compounds
- Mixtures: homogenous and heterogenous
In conclusion, substances can be classified into either pure substances or mixtures.
Learn more about substances and mixtures at: brainly.com/question/1867365
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B. Solid water conforms to the shape of its container.
The mass of Ca(CN)2 : 92,11 g/mol
<h3>Further explanation</h3>
Given
0.0321 moles of Ca(CN)2
Required
The mass
Solution
The mole is the number of particles contained in a substance
1 mol = 6.02.10²³
Moles can also be determined from the amount of substance mass and its molar mass
mol(n) = mass(m) : MW(molecular weight)
Input the value :
mass = mol x MW Ca (CN)2
mass = 0.0321 x 92,11 g/mol
mass = 2.957 g