Which kind of reaction is shown below?

2H2O2 → 2H2O + O2

Select one:

A. synthesis reaction

B. decomposition reaction

C. single replacement reaction

D. double replacement reaction

How would you describe the appearance of the substance after the phase change?

During the forging process for a steel sword, the blacksmith places a hot iron blank into a cold bucket of water. Which of the following happens? A. The water molecules move faster. B. The steel molecules move faster. C.

Which of the following criteria do astronomers use to classify an object as a planet? orbits a star gravity makes spherical at least as large as mercury clears orbits of other objects

Which of the following will be the best condition for bread fermentation? a. Wet, soft dough at 85 degrees Fahrenheit b. Dry, hard dough at 85 degrees Fahrenheit c. Wet, soft dough at 50 degrees Fahrenheit d. Dry, soft dough at 50 degrees Fahrenheit

Two teams are pulling on a tug-of-war rope. The rope is NOT moving. Is this an example of a balanced force or an unbalanced force?

Explain what happens to light when it is refracted at the surface of water.

A small car meshes with a large truck in a head-on collision. Which of the following statements concerning the magnitude of the momentum change during the collision is correct? (There could be more than one correct choice.

Consider the following distribution of objects: a 3.00-kg object with its center of gravity at (0, 0) m, a 4.20-kg object at (0, 6.00) m, and a 1.40-kg object at (1.00, 0) m. Where should a fourth object of mass 7.

A Volt/Amp Is Also Known As.?

What's the difference between mass & weight & how they are measured