Which of the following are examples of physical change? Copper oxidizing Iron rusting Carbon dioxide sublimating Water evaporating

Which is least likely to occur after an experiment is conducted to test a hypothesis

What determines the temperature of an object at the molecular level?

Morphine is a well known pain killer but is highly addictive. The lethal dose of morphine varies from person to person based on their body weight and other factors but is somewhere near 70 mg. Calculate the number of millimoles of carbon atoms in 71.

Seven hundred twenty centimeters is how many liters

How many moles of sulfur are needed to react completely with 1.2 mol of O2?

If The mass of a box is increased and the force stay the same, determine the relationship with acceleration

A balloon contains 0.15 moles of co2 gas. how many molecules of co2 are in the balloon?

Acids A) are generally proton donors B) produce H + ions in solution C) are electron pair acceptors D) may include all of these characteristics

3.011 x 10^23 atoms F in grams

What would you use if you needed to determine the density of an object? balance and graduated cylinder balance and scale scale and spectroscope