Jenny wants to test the electrical conductivity of two substances dissolved in water. She is preparing the containers for the experiment. Which factor is MOST important for her to control?

How do decomposers break down waste material and and the remains of dead organisms? A. They release enzymes onto them B. They chew them up with their teeth C. They allow the wind and rain to do it D. They tear them apart with their claws

In determining nuclear binding energy, what is Einstein's equation used to do? convert energy to mass convert joules per nucleus to joules per mole of nucleiconvert mass to tonsconvert mass to energy

How many moles of oxygen are in 52.5 grams of oxygen gas?

Which natural methods remove CO2 from the atmosphere? respiration of living organisms photosynthesis by plants evaporation of ocean water absorption of CO2 from the atmosphere by ocean water melting of glacial ice

Think of Earth's shape. How does the shape of Earth affect the amount of heat different areas receive?

Does decreasing the number of moles of gas decrease temperature

Fluorine (F) and bromine (Br) are in the same group on the periodic table. How do atoms of these elements compare when they form bonds? 1-Both a fluorine atom and a bromine atom lose one electron, and both atoms become stable.

Why would the federal government and city government find it necessary regulate water standard?

Is distilled water ionically bonded

Explain why energy must be added to a solid to cause it to melt.