Which is the odd one brass, copper, aluminum, iton, sapphire

What is a solute? A) what you have the most of B) usually water C) the stuff doing the dissolving when making a solution D) the stuff being dissolved when making a solution

Which chemical reaction needs more energy to break bonds in the reactants

Which mass of urea, CO (NH2) 2, contains the same mass of nitrogen as 101.1g of potassium nitrate?

How do u separate salt from rock salt?

A doctor examines a patient's sore throat and suggests that the patient has strep throat. She takes a sample to test for the bacteria that causes strep throat. What parts of the scientific method is the doctor applying?

How many protons does one atom of sulfur have

Which shows the electron configuration for zinc (Zn) ? [Kr]5s24d10 [Kr]5s24d6 [Ar]4s23d9 [Ar]4s23d10

What is the oxidation number of chromium in the ionic compound ammonium dichromate (nh4) 2cr2o7?

Draw an ecosystem with 10 biotic and 5 abiotic factor

Which organism is responsible for cleanup in this ecosystem? coyote vulture prairie dog grasshopper or prairie grass