A balloon filled with air does not rise as high as a balloon filled with helium what does this tell you about the density of helium?

Krypton is named after the Greek word that means "secret." Which explains why krypton was most likely given this name?

How does strenth of the attraction between water molecules and sodium and chloride ions compare with the strength of the attraction between the sodium ions and chloride ions?

How many atoms are in 80.45 g of magnesium?

Which of the following is true of biochemistry

After water vapor molecules enter the Earth's atmosphere, what conditions must occur before they can become liquid?

Which bond or interaction would be most difficult to disrupt when compounds are placed into water?

Which of the following is the correct name for the compound hgs? mercury sulfide mercury (i) sulfide mercury (ii) sulfide mercury monosulfide?

Which of these has the most impact on the apparent brightness of a star seen from Earth? Gravitational pull, temperature of star, distance from earth, earths orbital pattern

What are 6 abiotic factos from finding nemo?

Which of the following is an element? a. carbon monoxide gas (co) b. magnesium chloride salt (mgcl) c. hydrochloric acid (hcl) d. zinc metal (zn)