Why does chlorine react vigorously with hydrogen in the presence of sunlight?

Arrange the events in the life of a star in the correct order. All that remains of the star now is the core. In some cases, the star turns into a black hole.

Characteristics of matter that cannot be changed are called

Which of the following statements are true of gases? Check all that apply. A. The particles have more kinetic energy than those of liquids or solids. B. They have strong intermolecular forces between the atoms or molecules. C.

Who was in control of Afghanistan when the U. S. and Allied forces invaded it in 2001? A. al-Qaeda B. the Taliban C. the Ba'ath Party D. the Mujahadeen

Benzene is a starting material in the synthesis of nylon fibers and polystyrene (styrofoam). Its specific heat capacity is 1.74 J / (g·K). If 16.7 kJ of energy is absorbed by a 225-g sample of benzene at 20.0°C, what is its final temperature? A.

No one's even answering, so i'll just uh leave this here

Suppose you have a sample of an unknown mineral with a mass of 86g. you placed the sample in agrduated cylinder filled with water to the 55mL mark. the sample sinks to the bottom of the cylinder and the water level rises to the 71 mL mark.

What is a disadvantage of using a structural model to show a chemical compound? Structural models provide minimal three-dimensional information. Structural models do not identify the number and type of each atom.

If a hydrogen atom gains an electron, then

Alkalosis is a condition that occurs when: Select one: a. the level of carbon dioxide in the blood increases. b. dangerous acids accumulate in the bloodstream. c. slow, shallow breathing eliminates too much carbon dioxide. d.