Which of the following factors can lead to desertification in the presence of natural drought?

a. deforestation

b. sustainable grazing

c. underground mining

d. all of the above

Which element has the fewest valence electrons available for bonding?

Fe2s3 + 6hcl → 2fecl3 + 3s + 3h2 which is the oxidizing agent

Why can't all mixtures be classified as solutions? Question 1 options: Not all mixtures are homogeneous. Not all mixtures are heterogeneous. Not all mixtures have solutes and solvents. Mixtures are made of only one substance.

How many different kinds of monomers are there in starch?

Which of the following substances will cause a beam of light to scatter back but its particles are not settled out? Question 3 options: mud Kool-AidÔ fog salt water

Energy stored in the bonds that hold together the atoms and molecules of all substances is called Energy stored in the bonds that hold together the atoms and molecules of all substances is called

Which of the following requires an oxidizing agent? Al yields Al3+ 2 O yields O2 Cl2 yields 2 Cl- Ag + yields Ag

If a color change occurs when two solutions are mixed has a chemical reaction likely occurred?

Using the following thermochemical data, what is the change in enthalpy for the following reaction? Ca (OH) 2 (aq) + 2HCl (aq) → CaCl2 (aq) + 2H2O (l) CaO (s) + 2HCl (aq) →CaCl2 (aq) + H2O (l), ΔH = - 186kJ CaO (s) + H2O (l) →Ca (OH) 2 (aq), ΔH =

1. Calculate the end velocity of a rocket that traveled 16km in 2 seconds. distance time 2. Calculate the rockets acceleration m with a start velocity of 0m/s and the end velocity from #1 for 10 seconds.