Which of these is an example of a physical change?

A) sugar dissolving in warm water

B) iron rusting in the presence of moist air

C) wood burning in the prescence of oxygen

D) baking soda reacting with acid to form a gas

At 25.0∘c, the molar solubility of silver chromate in water is 1.10*10-12 m. calculate the solubility in grams per liter. express your answer in grams per liter to three significant figures. how many liters of water are required to dissolve 1.

Which elements are the transuranium elements? Use the periodic table link from the tools bar to answer the question.

When a behavior is followed by negative reinforcement, the behavior is likely to a. be extinguished. b. be suppressed. c. decrease. d. increase.

In Flask A, you reacted 7.23 g Mg with 1.05 mol HCl. In Flask B, you reacted 1.22 g Mg with 1.35 mol HCl. Which balloon will inflate the most?

The atmosphere is held together by

What jobs involve chesmistry

Think about a neutral magnesium atom. Then think of a magnesium ion with a 2+charge. How are these two alike? How are they different? Be sure to use the terms proton, neutron, and electron in your answer.

What subatomic particle is specifically responsible for combining the atoms together to form a new substance?

A chemist reported that 100 gallons of a gas were available in a laboratory. Which property of the gas did the chemist report?

Is the water density higher than the aluminum density