An unknown substance is a yellow gas at room temperature. Is this substance ionic or covalent?

How do you know?

A pressure of 760.0 mm hg is equal to

A toy helicopter is flying straight ahead. A fan is blowing air toward the helicopter's right. When the helicopter flies past the fan, the fan will push the helicopter toward the helicopter's right.

A 5.0L balloon in a freezer is at a temperature of - 50˚C has a pressure of 800 mm Hg. What will be the new pressure (in mm Hg) if the balloon is taken out and placed in a warm room (Temperature 37˚C) and the volume expands to 7.0 L? Your answer

Classify the following reaction: 2H 2 O 2H 2 + O 2 synthesis neutralization decomposition single replacement

Which relationship is the BEST example of the Law of Supply? A) The quantity of a good supplied rises as the price rises. Elin The quantity of a good supplied rises as the price falls. C) The quantity of a good supplied falls as the price rises.

What is an element that has more valence electrons than fluorine and less energy levels than sodium?

Why can't we breathe in pure oxygen for long

In warm water conditions, female offspring hatch from eggs laid by painted turtles. Male offspring are produced under cold conditions.

It takes 53.0 J to raise the temperature of an 11.0 g piece of unknown metal from 13.0∘C to 24.2 ∘ c. What is the specific heat for the metal?

What happens to the velocity of a sound wave in air if the temperature of the air increases