He baking soda looked like it dissolved in the vinegar. sarah and connor watched as the balloon expanded and filled with a gas. was this a physical or chemical reaction and why?

List the experiment procedures. Some steps have been filled in for you. You may need to adjust the numbers to match the steps you decide on. 1. Identify the variables. 2. Write out your hypothesis in an if/then format. 3. Gather your materials. 4. 5.

How does a vortex form

When water droplets in a cloud combine, become too heavy, and fall to the ground as snow, sleet or hail, we are experincing what?

How many molecules of n2 are in a 200.0 ml container at 780 mmhg and 135∘c?

If we compare and contrast electromagnetic waves with sound waves, all BUT one statement is true. That is

A researcher wants to test the solubility (property of being dissolved) of salt in water as the temperature of the water increases.

If you have three moles of S2, how many moles of Al2S3 can be produced?

Predict whether each of the following reactions will occur in aqueous solutions. Explain your reasoning in each case. Note: Barium sulfate and silver bromide precipitate in aqueous solutions.

The digestive system is the body system that Text to speech A:A. breaks down food into substances that can be absorbed and used for energy. B:B. gets rid of the remaining solid waste that cannot be absorbed. C:C.

What kind of molecule is water? A. nonpolar B. ionic C. polar D. charged