A 155 g sample of an unknown substance was heated from 25°c to 40°c. in the process, the substance absorbed 569 calories of energy. what is the specific heat of the substance?

An aqueous solution at 25 °C has a pOH of 12.42. Calculate the pH. Round your answer to 2 decimal places

Which statement describes how chemical formula such as H20 represent compounds check all that apply They show the types of molecules that make up an atom They show the elements of make up a compound They show the 3 dimensional shape of a molecule

How many types of atom make up a particle of water

Which scientist discovered that atoms contain electrons?

How does a runoff get polluted.

How many vowels does the word love have

What is silicon used for? -matches -gunpowder -glass -steel can coating

A intramuscular medication is given at 5.00mg/kg of body weight. What is the dose in grams for a 180-lb patient?

Nuclear fusion is the source of energy for stars. Besides hydrogen, which other element is most likely also common in stars?

Since the early 2000s, careers in the field of genetics have grown at a rapid pace. Which of these is a probable cause for this explosion of available and expanding jobs?