Answer;
- A 100 mL graduated cylinder since it has marks showing the volume of the substance measured.
Explanation;
-A graduated cylinder or a measuring cylinder is a common piece of laboratory equipment used to measure precise volumes of a liquid.
-Graduated cylinders are specifically designed to measure out liquid volumes. Their tall narrow design makes for a more precise reading of the liquid level as compared to other pieces used to measure volume.
There is no element in 2s3
Answer:
MnO- Manganese Oxide
Explanation:
Empirical formula: This is the formula that shows the ratio of elements
present in a
compound.
How to determine Empirical formula
1. First arrange the symbols of the elements present in the compound
alphabetically to determine the real empirical formula. Although, there
are exceptions to this rule, E.g H2So4
2. Divide the percentage composition by the mass number.
3. Then divide through by the smallest number.
4. The resulting answer is the ratio attached to the elements present in
a compound.
Mn O
% composition 72.1 27.9
Divide by mass number 54.94 16
1.31 1.74
Divide by the smallest number 1.31 1.31
1 1.3
The resulting ratio is 1:1
Hence the Empirical formula is MnO, Manganese oxide
No Ag cannot react with NaOH because Ag is less reactive than Na in the reactivity series and can't displace it
