How many oxygen atoms in 2NaOH?

How is each item classified on the pH scale? Column A 1. baking soda: pH 9.0 2. lemon juice: pH 2.3 3. ammonia: pH 11.5 4. tomatoes: pH 4.2 5. bananas: pH 5.0 6. pure water: pH 7.0/Column B A. acid B. base C. neutral

If three potatoes have a mass of 667 g, what will be the mass of 100 potatoes? A. 200 kg B. 22.2 kg C. 2223 g D. 20.0 kg

What is the volume of 3.70 mol of N2 gas at STP?

In a liquid, the energy required to increase the surface of the area by a unit amount is called : a. dipole-dipole force. b. viscosity. c. capillary action. d. surface tension. e. hydrogen bonding

A particular experiment requires 13.5 µl hydrochloric acid solution. if 250 ml hydrochloric acid solution is available, how many times can the experiment be performed

What information can be learned about the element chlorine (Cl) by looking at the periodic table? Select all that apply. chlorine has 35.45 protons chlorine has 35.45 neutrons chlorine has 17 protons chlorine has 17 electrons

Zn (s) + 2HCl (aq) → ZnCl2 (aq) + H2 (g) When combining zinc metal with hydrochloric acid, you notice that you run out of zinc and still have plenty of hydrochloric acid to continue the reaction. What is the term used to describe the zinc?

Engineers increase output in crop production by combining the strengths of two plants. This can be done by using one plant to pollinate a different plant so that their strengths are combined into a new plant. What is this technique called?

Using the first volume and temperature reading on the table as V1 and T1, solve for the unknown values in the table below. Remember to use the rules of significant figures when entering your numeric response. A: B: C: D: A 2-column table with 5 rows.

Which scientist performed the cathode ray experiment leading to the discovery of electrons