In the reaction HF + Al AlF3 + H2, which two substances would have a coefficient of 2 if the reaction were balanced?

Check all that apply.

A. H2

B. Al

C. AlF3

D. HF

A dancer moves 5 meters toward the left of the stage over the course of 15 seconds. What is her velocity for this time?

Which statement best defines open system. a) Open systems allows nothing to go in or out of the system. b) Open systems allows something to go in and out of the system. c) Open systems cannot give or take at all with another system

In the Winter Olympics, an ice skater may lift his partner high above his head. A typical female ice skater weighs 400 N, and the male can usually lift her 1.4 m above the ice.

What object is the type of matter that makes up the object and the way that matter is arranged

What are anode rays?

A body is moving with a velocity of 12m/s and it comes to rest in 2 minutes, what was the acceleration?

How can you find magnitude of velocity from a displacement time graph of an object?

Consider two rocks with masses of 1 and ten kilograms. What is the relation between their inertia's? Between their masses? Between their weights on earth?

If a cart of 4 kg mass has a force of 8 newtons exerted on it, what is its acceleration?

Why does the liquid thermometer work?