a sample of helium gas in a 1.50L container has a pressure of 99.8 kPA. What is the new pressure if the gas is placed in a 2.00L container?

Treatment of an alpha, beta-unsaturated ketone with basic aqueous hydrogen peroxide yields an epoxy ketone. the reaction is specific to unsaturated ketones; isolated alkene double bonds do not react.

What does pure substance mean

What would happen if IgE were produced against a self molecule? a) The hypersensitive reaction would lead to anaphylactic shock. b) It would enhance immune function. c) The hyposensitive reaction would lead to anaphylactic shock.

What is the neutral particle that is formed when atoms share electrons? cation cation ionic compound molecule nucleus

With the exception of our sun, most stars are huge, bright balls of gas located trillions of miles away from earth true or false

Why is photosynthesis so important to plants, and can't animals use it?

One way the government of Kim Jong-il controls the lives of the people who live in North Korea is by a. requiring every citizen to vote. b. controlling information its people receive from the outside world. c. enforcing free trade with other nations.

Give reasons 1) copper utensils and sheets become blackish after some days

Predict the spontaneity of a reaction (and the temperature dependence of the spontaneity) for each possible combination of signs for? H and? S (for the system).

At 29°C, Kp = 5.3 ✕ 102 atm-2 for the following reaction. N2 (g) + 3 H2 (g) equilibrium reaction arrow 2 NH3 (g) When a certain partial pressure of NH3 (g) is put into an otherwise empty rigid vessel at 29°C, equilibrium is reached when 55.