1. Identify the uses of the different wood and metals. 2. State the properties of wood and metals.
3. Explain the care and cleaning of woods and metals.
4. How to clean and polish and store stainless steel.

Iwill give 30 points to whoever answers ! what is the formula for actual mechanical advantage and ideal mechanical advantage?

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.