Wood is burning. * 1 point
A change in color
A new odor is produced
Gas is produced
The temperature changes
A solid is formed (precipitate)
Light is released
Copper metal on a roof turns green after reacting with oxygen in the air. *
1 point
A change in color
A new odor is produced
Gas is produced
The temperature changes
A solid is formed (precipitate)
Light is released

It may seem as though burning destroys matter, but the same amount, or mass, of matter still exists after a campfire as before. Look at Figure 3.7.1 below. It shows that when wood burns, it combines with oxygen and changes not only to ashes, but also to carbon dioxide and water vapor. The gases float off into the air, leaving behind just the ashes. Suppose you had measured the mass of the wood before it burned and the mass of the ashes after it burned. Also suppose you had been able to measure the oxygen used by the fire and the gases produced by the fire. What would you find? The total mass of matter after the fire would be the same as the total mass of matter before the fire.

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

happy to

pls mark as brainliest

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr