Before lift-off, is the external tank cold or hot?

Aluminum reacts with element x to form a compound with the formula al2x3. element x exists as diatomic molecules, x2, in the gaseous state at normal temperature and pressure. element x must be

A draw the structures of the products of the neutralization reaction between methylamine and acetic acid.

Which substance is a molecule? 1. Ch4 2. NaF 3. Ar 4. Pb

What will happen to the chemical equilibrium if NH4Cl is added to this solution?

In carbon tetra-chloride, CCl4, what is true about the charge distribution? Select one: A. a. The carbon will be more negative than the chlorine. B. b. The chlorine will be more negative than the carbon. C. c.

If you put a base in water, what will happen? A. it will dissociate B. it will form a covalent bond. C. it will bond with the water molecules

What is the definition of tone?

Which abiotic factor differentiates between the three major types of aquatic biomes? (freshwater, estuary, marine) Question 4 options: sunlight movement salinity oxygen

What's is the percent composition by mass of oxygen in magnesium oxide, Mg0

Which consequence of new fishing methods had the most immediate impact on the environment? A. Diesel engines on newer ships contributed to global warming B. Increased reliance on fish in the American diet led to health problems C.