a.
A substance's specific heat tells you how much heat is required to increase the temperature of 1 g of that substance by 1°C.
The equation that establishes a relationshop between heat and change in temperature is
q = m • c • ∆T, where
q - heat absorbed
c - the specific heat of the substance, in your case of water
ΔT - the change in temperature, defined as the difference between the final temperature and the initial temperature
so:
q = 1.00 g • 4.18 J/g×°C • (75.0 - 38.5)°C
q = 152,57 J
just apply this formula for all exercises
The method scientists could use is radiocarbon dating. This method involves the analysis of a specific type of carbon atom in fossils. Carbon 14 is radioactive and has a half-life of approximately 5730 years. By measuring the amount of carbon 14 left in a sample scientist should be able to determine the approximate time when the soil was laid down.
The correct answer is C. Noble gases. Good luck!
-Melissa ❤️
Answer:
Orbitals give a probability map of where it is likely to find an electron in an atom.
Explanation:
Wave mechanical model of the atom suggests that an atom contains a nucleus which has positively charged protons and neutral neutrons.
The outer part of the atom is mostly empty.
The negatively charged electrons are located in outer orbitals.
The true statement is :
Orbitals give a probability map of where it is likely to find an electron in an atom.
