Answer:

Explanation:
Hello there!
In this case, according to the first law of thermodynamics it is possible to compute the gained heat by the water as shown below:

Thus, it is possible to solve for the specific heat of the gas as shown below:

Best regards!
A,B,C all have the same molecular and empirical formula. Their formulas can’t be reduced down
Answer:
MnO3 radical anion. Formula: MnO3- Molecular weight: 102.9368.
Answer:
Some chemical indicators perceived while a piece of paper is burning are:
Production of an Odor: there is a smell of burnt paper
Change in Temperature: combustion is a highly exothermic reaction , so the temperature increase
Change in Color: paper changes to ashes as the burning process occurs
Answer:
The atomic radius of atoms generally decreases from left to right across a period. There are some small exceptions, such as the oxygen radius being slightly greater than the nitrogen radius. Within a period, protons are added to the nucleus as electrons are being added to the same principal energy level.
hope this helps!