Name the following covalent compounds.

a. BF3:

b. C3H8:

c. N2O5:

d. CO2:

e. Si2F8 :

Which statements about air masses are true? Choose all answers that are correct. A. An air mass has the characteristics of the land or water below it. B. An air mass contains warm air until it moves over a desert or tropical area. C.

What principle do we use in writing the formula of an ionic compound such as NaCl or MgI2? How do we know that two iodide ions are needed for each magnesium ion, whereas only one chloride ion is needed per sodium ion?

Why is it important to note the temperature when determining the density of a substance?

Now dilute 10.0 mL of the 0.50 M NaCl by adding distilled water until 100 mL of solution are produced. Do the 100 mL of diluted NaCl have more, less, or the same quantity of NaCl as the original 10.0 mL of 0.50 M NaCl? more less the same

What is the percent of ag in agno3

How are chemical methods of determining salinity dependent on the principle of constant proportions?

What does oxidation mean

Which is the correctly balanced chemical equation for the reaction of KOH and H2SO4?

Disintegration is the word geologists use for A. when a rock becomes moist. B. when rock is physically broken into smaller pieces. C. when rock is chemically broken into smaller pieces. D. when rock undergoes a rather large chemical change.

There us no sound in the vacuum of space Why? Answer all that are correct A) sound must travel through something that vibrates B) there is no energy in space C) there is no air to vibrate in the human eardrum