Answer:
reaction 1 and reaction 4 both are decomposition reactions
while reaction 2 is double displacement reaction and reaction 3 and 5 are combination reactions
Answer:
The answer to your question is: letter C
Explanation:
Chemical properties is a change is matter observed due to a chemical reaction.
A) Water is a polar molecule. This is a physical property, there is no chemical reaction. This option is wrong.
B) Water is the universal solvent. This is a physical property of water, there is no change of matter, so this is not a chemical property.
C) Water reacts with group 1 metals. This is an example of a chemical property because metals react with water and matter changes to a new substance, this is the correct answer.
D) Water has a high specific heat capacity. This is a physical property, it is not the correct answer to the question.
Answer: The molecular formula will be
Explanation:
Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.
Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.
To calculate the molecular formula, we need to find the valency which is multiplied by each element to get the molecular formula.
The equation used to calculate the valency is:
empirical mass of
Molecular mass= 214 g/mol
Thus molecular formula will be
The answer would be the closest to the inside, so the last option. Hope I helped :)