To describe the length of a classroom, a student should use

A) centigrams

B) centimeters

C) kilometers

D) meters

Given what you know about acids and bases, which of the following descriptions is the most accurate? A. We can tell a substance is acidic if it had a high pH B. A basic substance has a low pH C.

How do you detemine the charge of an element based on jts valence electrons

This states tha from one object to other be created or destroyed. However, a charge can be transferred

What name is given to a polymer where all of the substituents (i. e., the R groups) are in the same relative orientation (i. e., on the same side of the polymer chain) ?

For main-group elements, are outer electron configurations similar or different within a group? Within a period? Explain.

What is the (H+), if the pH of a solution is 3.20?

In an open system, the vapor pressure is equal to the outside air pressure. T or F?

Could acetic acid be used in the esterification, instead of acetyl chloride? Why or why not?

9. In a sample of gas, what causes pressure? Answer in a completesentence.

Sodium (Na) reacts with chlorine gas (Cl2 ) to form sodium chloride (NaCl) as shown in the equation: 2Na + Cl2 → 2NaCl If 4 moles of chlorine gas react, how many moles of sodium will react?