What are the 4 main signs of a chemical reaction?

Carbon nonoxide formula

Which best describes the relationship between humidity and air pressure? Humid air has higher pressure because of the heaviness of water. Humid air is lighter, so it has lower pressure. Air pressure is lower below sea level because of the humidity.

Compared to white dwarf stars, neutron stars are-? A. More abundant B. Smaller C. Less dense D. Older

The peregrine falcon is the world's fastest known bird and has been clocked diving downward toward its prey at constant vertical velocity of 97.2 m/s. If the falcon dives straight down from a height of 100.

Define fusion and give an example of reaction

A hot air balloon is rising straight up at a constant speed of 7 m/s. when the balloon is 12.0 m/s above the ground, a gun fires a pellet straight up from ground level with an initial speed of 30.0 m/s.

The atmosphere is an). O element O molecule O mixture O compound

What is the velocity of the car, in meters per second, just after it hits a 135-kg deer initially running at 10.5 m/s in the same direction? Assume the deer remains on the car.

True or false the metric unit used to describe weight as a measure of the force of gravity is called a newton

One car travels 40. meters due east in 5.0 seconds, and a second car travels 64 meters due west in 8.0 seconds. During their periods of travel, the cars definitely had the same