Answer:
2NaCN + CaCO3 --> Na2CO3 + Ca(CN)2
Explanation:
Knowing the names gets us: NaCN + CaCO3 --> Na2CO3 + Ca(CN)2
Balance: there are two sodiums and cyanides on the product side so add a 2 to the reactant side.
The simplest ratios compare only two values, but ratios comparing three or more values are also possible. In any situations in which two or more distinct numbers or quantities are being compared, ratios are applicable. By describing quantities in relation to each other, they explain how chemical formulas can be duplicated or recipes in the kitchen expanded.
Please let me know if I’m wrong
The answer would be 19.3g/cm^3
Explanation: D=m V;D = 38.6g/2cm^3 = 19.3g/cm^3. Due to the chart, the unknown sample is gold. Gold is a soft metal that is malleable and ductile. It has a great density value, which makes it heavy metal.
P= 38.6/2 =19.3g/cm^3
Lower water levels can contribute to higher concentrations of natural and human pollutants. Less water going down the drain means more water available in the lakes, rivers and streams that we use for recreation and wildlife uses to survive.