Fall Final Hon Chem Unit 1and 2 24-25

Front

What is specific heat?

Back

Specific heat is the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius.

Front

Which material has a higher specific heat: Water or Wood?

Back

Water has a higher specific heat (4.184 J/gºC) compared to Wood (1.760 J/gºC), meaning it requires more energy to raise its temperature.

Front

What is the formula for calculating heat energy (Q) in relation to specific heat?

Back

Q = mc∆T, where m is mass, c is specific heat, and ∆T is the change in temperature.

Front

What is the mass number of an atom with 4 protons and 5 neutrons?

Back

The mass number is 9 (mass number = protons + neutrons).

Front

Where is nuclear energy stored in an atom?

Back

Nuclear energy is stored in the nucleus of atoms.

Front

What is the specific heat capacity of ammonia?

Back

The specific heat capacity of ammonia is 1.12 cal/(g·°C).

Front

If a substance releases heat, what does it indicate about its temperature?

Back

If a substance releases heat, it indicates that its temperature is decreasing.

Front

What is the relationship between valence electrons and chemical bonding?

Back

Valence electrons are the electrons in the outermost shell of an atom and are involved in forming chemical bonds.

Front

How do you determine the number of valence electrons in an element?

Back

The number of valence electrons can be determined from the group number of the element in the periodic table.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of elements organized by increasing atomic number, showing periodic trends.