Which of the following is an example of a double-replacement reaction? A. 3K + AlCl3à 3KCl + Al B. KOH + HBr à KBr + H2O C. CH4 + 2O2à CO2 + 2H2O D. Cu + 2H2SO4à CuSO4 + SO2 + 2H2O

Qualitative or quantitative data. the taste of an apple:

A fountain pen, which has a total volume of 2.4 cm is half full with ink at ground level where the pressure is 780.0 mm Hg. It is put into the pocket of a pilot who flies to an altitude where the pressure is 520.0 mm Hg.

Match the term with its description. Match Term Definition Colloid A) A mixture in which two or more liquids are mixed that normally are not mixable Emulsion B) Mixture that has its different components mixed evenly within the substance

Where would water be placed, if at all, in this Venn diagram?

When the ph of a solution shifts from 7 to 3, how has the hydrogen ion concentration changed?

A green plant has _ energy

An alkali is able to "cancel" out an acid. What is the other word for "cancelling out the acid"?, Ill mark brainliest if your answer is correct; )) a) neutralise b) overcome c) nullify d) become acidic

Suppose you have made the following hypothesis: Sharks are most common near coral reefs, because there are more fish there to eat. Suppose you observed 10 sharks on a coral reef in the Caribbean, and 15 sharks in the open ocean 50 miles away.

The total pressure of a mixture of oxygen and hydrogen is1.00atm. The mixture is ignited and the water is removed. Theremaining gas is pure hydrogen and excerts a pressure of. 4atm whenmeasured at the same values of T and V as the original mixture.

Two ligands, a and b, both form complexes with a particular metal ion. when the metal ion complexes with ligand a, the resulting solution is red. when the metal ion complexes with ligand b, the resulting solution is yellow.