The energy in fossil fuels is often converted into

Dan made the table shown to describe two different relationships between animals. Organism Interactions Relationship A Relationship B One organism lives inside the organism it feeds off No organism is harmed Which of the following statements is most

When water is broken down by electrolysis (the use of electricity), the products are a. water and carbon dioxide. b. oxygen and methane. c. hydrogen gas and oxygen gas. d. hydrogen ions and oxygen ions?

The forensic technician at a crime scene has just prepared a luminol stock solution by adding 18.0 g of luminol to H2O creating a solution with a total volume of 75.0 mL.

The activation energy for the reaction in this lab is determined by investigating the effects of temperature on reaction rate. Assuming a negative activation energy, Ea, what effect will increasing the temperature have on the rate constant, k? a.

Which is an example of a container filled with a pure substance? * a glass of iced tea a tire filled with air a bucket of salt water a balloon filled with helium

A) the ka for acetic acid (h3cco2h) is 1.737 * 10-5. what is the pka for this acid? b. use the pka calculated above to determine the ph at which [h3cco2h]=[h3cco2-].

Suppose you take a piece of hard wax from an unlit candle. After you roll the wax between your fingers for a while, it becomes soft. What State of matter is the softer wax? Is it possible for wax to change without changing state

Prevailing winds peru

Foods labeled "fat free" can actually contain less than 0.5 grams of fat.

Plants make their own food. The chemical reaction for this process is shown in the equation below. CO2 + H2O + energy → C6H1206 + O2 What are the products in this chemical reaction? O A. C6H1206 + energy O B. H20 + energy O C. CoH1206+02 O D.