Are protons and neutrons the same size? Explain.

If you lose a case in the trial court, you can

It takes one gallon of gas to drive 25miles which measure of efficiency is an example

Which best describes what happens when a neutral atom becomes a positive ion? O A. The remaining electrons spread farther out. O B. The excess protons pull harder on the fewer electrons O C. The remaining electrons are more easily lost. O D.

How many grams of NH4Cl will be needed to make a 1L solution with a concentration of 4.5M?

The organic compounds that scientists use to cut, copy, and move segments of DNA are

In a titration 25.0 ml of a. 20 M NaOH solution is used to neutralize 10.0 ml of HCl. Write the equation for this neutralization reaction and calculate the molarity of the acid.

4*C: 4cm 8*C: 10cm 12*C: 14cm 16*C: 18cm 20*C:24cm 24*C: 12cm what is the independent variable, dependent variable and three constant variables?

In the chemical laboratory, why do scientists use a mortar and pestle? a. to increase surface area of a solute b. to decrease surface area of a solute c. to increase temperature of a solute d. to decrease temperature of a solute

Is a mixture being separated into two elements a chemical change

Which electrons are lost by an atom of iron when it forms the Fe3 + ion? A. One s orbital electron and two d orbital electrons B. Two s orbital electrons and one d orbital electron C. Three s orbital electrons D. Three d orbital electrons