Is breath fogging a mirror a chemical or physical change?

What is an example of a precipitation reaction and addition reaction?

How many miles of copper, Cu, are in 19.2g of copper

How many electrons are in the 2p sublevel of nitrogen?

How can you use the periodic table to find the number of protons in one atom of an element? The number of protons is the same as the atomic number of the element. The number of protons is the same as the atomic weight of the element.

How does acid taste and feel?

According to Table I, which equation represents a change resulting in the greatest quantity of energy released? 1. 2C (s) + 2H2 (g) - > C2H4 (g) 2. 2C (s) + 3H2 (g) - > C2H6 (g) 3. N2 (g) + 3H2 (g) - >2NH3 (g) 4. N2 (g) + O2 (g) - > 2NO (g)

Calculate the number of liters in 3.25 g of ammonia

Adding drops of food coloring to a beaker of water more organized system?

Some chemical hazards are physical and some are related to the potential health effects of exposure. Click only one box for each response Toxicity Carcinogenic Flames Inhalation hazard Flying objects

Which would be best categorized as heat transfer by convection? A) Wearing a white shirt to stay cool on a summer day.