Each of the items pictured represents a different chemical reaction. rank these four reactions in order from fastest to slowest.

1, 3, 2, 4

4, 3, 1, 2

3, 1, 4, 2

3, 2, 4, 1
1. egg cooking: three eggs in a pan of water. 2. metal rusting: an abandoned, rusting car. 3. wood burning: a lit match. 4. cement hardening: men pour cement from cement mixer.

Is this a scientific model? use complete sentences to explain why or why not. a graphic organizer showing the water cycle i need : ( asap i go it never mind

Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.

Which best describes how johannes kepler developed his laws of planetary motion