How much heat must be added to heat 0.750 g of water from 20.0°C to 40.0°C? (Remember, Q=C * m *ΔT) The specific heat of water is 4.186 joule/gram. Question 4 options: A) 322 kJ B) 126 kJ C) 62.8 J D) 62.8 kJ

What are the similarities of physical and chemical change ?

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?