A solution a has PH of 8. Which hat dasevibes the solution?

A) a strong acid

B) a strong base

C) a weak acid

D) a weak base

Which kind of bonds are found in a sample

A 45.0 g block of an unknown metal is heated in a hot water bath to 100.0°c. when the block is placed in an insulated vessel containing 130.0 g of water at 25.0°c, the final temperature is 28.0°c. determine the specific heat of the unknown metal.

3. A train travels at a speed of 80 mph. How far does the train travel in 2 hrs and 42 minutes? HINT: Distance (S) - velocity (V) x time (T) A. 160 m B. 216 mi C. 240 mi D. 280 mi

How many moles of KBr will be produced from 7 moles of BaBry? BaBr2 + K2SO4 → KBr + BaSO4

The rate of entropy production and hence the amount of lost work will Group of answer choices a) none of the above increase as the irreversibility increases for a process. b) decrease as the irreversibility increases for a process.

What term is used to describe a testable modle

When the equation for the combustion of ethane, C2H6, is correctly balanced, the coefficient on oxygen is:

Sahil watched a demonstration in which a scientist combined two substances in a sealed container and analyzed the results. the ending substances did not look the same as the starting substances.

How many molecules of H2S are required to form 79.0 g of sulfur

How many grams of potassium iodide, KI, are required to make 2.0 L of a 0.1M solution