With the exception of a species that lives near the Florida coast, sea urchins are basically harmless to people.

Which word is an adjective?

Is the water temperature of Lake Michigan affected by the depth of the water?

When methane (CH4) burns, it reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reaction isCH4 (g) + O2 (g) = CO2 (g) + H2O (g) This type of reaction is referred to as a complete combustion reaction.

What Structure keeps harmful chemicals out of the animal cells

Elaborate on why Thompson's atomic model is referred to as the Plum Pudding model. Thompson proposed that negative particles are randomly dispersed in a positive cloud similar to the dispersion of raisins in plum pudding.

What are two traits that make up an organism?

A battery is constructed based on the oxidation of magnesium and the reduction of cu2+. the initial concentrations of mg2 + and cu2 + are 1.2*10-4 m and 1.44 m, respectively, in 1.0-liter half-cells. how long can the battery deliver 5.

A buffer solution is made that is 0.417 M in and 0.417 M in. If for is, what is the pH of the buffer solution? pH = Write the net ionic equation for the reaction that occurs when 0.120 mol is added to 1.00 L of the buffer solution.

BaCl2 (aq) + AgNO3 (aq) → Express your answer as a chemical equation. Enter noreaction if no precipitate is formed.

Make a list of physical changes and chemical changes that you observe or see effects of in the school

Which equation obeys the law of conservation of mass? H2 (g) + O2 (g) → H2O (g) H2 (g) + O2 (g) → H2O (g) + 4He (g) 2H2 (g) + O2 (g) → 2H2O (g) H2 (g) → H2O (g) H2 (g) + O2 (g) → 2H2O (g)