A penny has a total mass of 3.1 grams. Zinc makes up 2.9 g of the penny. What is the percentage of zinc in the penny?

Persamaan setara pada reaksi besi dengan asam klorida membentuk besi (II) klorida dan gas hidrogen

Write a balanced chemical equation for the reaction of copper (II) sulfate and concentrated ammonia to produce teramine copper (II) sulfate.

What energy transformation takes place when you exercise

Give at least two practical examples where knowledge of viscosity is important?

How to write k2o as a lewis dot structure and steps

When heat is added to or removed from a substance, it may change its state. What state will most likely result if heat is added to a liquid?

Chemical Reactions Lab Procedures: 1. Place a 1cm long piece of white chalk in a clear plastic cup. 2. Add 5 mL of vinegar to the cup. 3. Record your observations. If you were performing the procedures above you would need to A.

How many moles of oxygen are in 0.53 moles of co 22?

The car wit fastest acceleration is the tempest. it has an acceleration of 6.1 m/s. suppose the car accelerates from rest to a final speed of 30. m/s. how long does it take the tempest to reach this speed?

What is the wavelength of 2.18*1016 hz wave?