A chemical reaction gives off 1,500 kJ of heat energy. About how many calories is this? (1 calorie = 4.18 Joules)

How to balance chemical equations

The stronger the wind, the larger the particles it erodes.

Which of the following is true of an electrolytic cell? a. An electric current causes an otherwise non-spontaneous chemical reaction to occur. b. Reduction occurs at the anode c. A spontaneous electrochemical reaction produces an electric current d.

Which of the following statements is true about Planck's Law? A) The frequency of the emitted light is inversely proportional to the energy given off by the electrons.

If the hydroxide ion concentration of an aqueous solution is 3.0 x 10-4, what is the [H+] in the solution? Is the solution acidic, basic, or neutral?

Write the net ionic equation for the chemical reaction shown. Include physical states. HClO2 (aq) + NaOH (aq) ⟶H2O (l) + NaClO2 (aq)

Which if the following is an example of a stratovolcano?

There are five elements named for famous scientists on the periodic table

What character acids is that they react with metals to

The energy of a particular color of green light is 3.81*10-22 kJ/photon. The wavelength of this light is nanometers