Which characteristic of atoms is the basis for the order on the Periodic Table?

A.

reactivity

B.

atomic size

C.

atomic number

D.

mass number

What is the molar mass of PCL3

The boiling temperature of water is so much higher than that of methane because water molecules are

Which symbolizes a molecule of a compound? Question 20 options: Ar2 H2O2 Si F2

Two students fertilize a pair of pea plants. One plant is Rr, and the other is rr. The offspring produced b all had the dominant trait. The Punnett square showed that there was a 50 percent chance of the offsp genes.

Systematic errors in chromatography

The face-centered gold crystal has an edge length of 407 pm. based on the unit cell, calculate the density of gold.

At stp, 1 l of br2 reacts with 3 l of f2 to completion and produces 2l of a product. what is the formula of the product

A student needed exactly 45.3ml of a solution. what piece of glassware should that student use? justify your choice.

NaCl + H2O → NaOH + Cl2 + H2 How many grams of chlorine gas, Cl2 are given off if 7.5 grams of sodium chloride, NaCl, are decomposed? Is this equation balanced?

What is the net ionic equation for the precipitation reaction between bacl2 and na2so4? a bacl2 (aq + na2so4 (aq? baso4 (s + 2nacl (aq b ba2 + (aq + so42 - (aq? baso4 (s c na + (aq + cl - (aq?