Chemistry 1 Question

A temperature change in a reaction indicates

How do hydrogen ions (h+) and chloride ions (cl-) get into the lumen of the stomach?

Which of the following is an example of gas? A. Pudding that is spooned from a pan into a cup B. Light that is spreads out to fill the space of a room C. Helium that fills a balloon, causing it to float D.

Is it true or false a population is all of the plants and animals that live within a ecosystem

As part of your job you are asked to make 1 liter of a 0.5 molar sucrose solution. how much sucrose (c12h22o11) do you need? use the information below listing the number of protons, neutrons, and electrons in each element.

Explain the iodine clock reaction.

1 75 ml of lemon juice are added to 50 ml of water. What is the percent by vo of the solute?

How many moles of tungsten atoms are in 4.8 x 1025 atoms of tungsten?

At what speeds do you criuse down the track of a roller coaster

A sample of hydrogen gas is mixed with water vapor. The mixture has a total pressure of 755 torr and the water vapor has a partial pressure of 24 torr. What amount (in moles) of hydrogen gas is contained in 1.55 L of this mixture at 298 K?