What are the five major changes in state? (science question)

What is the formula of the CoCl2 hydrate?

Freddie works at an amusement park making balloon animals and has always wondered why balloons can be twisted into shapes. Which of the following is the best explanation? A The volume of a gas is constant B. Particles of gas can be compressed C.

Each of four test tubes contains a different concentration of HCL (aq) at 25 degrees celsius. A 1-gram cube of Zn is added to each test tube. In which test tube is the reaction occurring at the fastest rate

Consider a 1.6 * 10-3 M solution of HNO3. Which of the following statements is NOT true? Consider a 1.6 * 10-3 M solution of HNO3. Which of the following statements is NOT true? This solution could dissolve metal.

which atoms are most likely to form covalent bonds A) metal atoms that share electrons B) metal atoms that share protons C) nonmetal atoms that share electrons D) nonmetal atoms that share protons

You see rainforests a is far as the eye can see It rains every day and the humidity is fiercel Where might you be? Polar climate Tropical climate Subtropical climate Temperate climate

2. A balloon is dunked into a tank of cold water. How will this affect the size of the balloon?

Which of the following correctly describes a compound?

If the [H+] of a solution is 1.0 x 10 to the power of - 2 mol/L the pH is: (pH = - log (H+] 1 12 -2 2 chemistry

Change 5.20 moles of c3h6o2to grams