Which two statements are true for both compounds and mixtures? A. They are made up of more than one type of atom. B. Their particles all have the same chemical formula. I C. Their particles are held together by chemical bonds. D. They can be separated into two or more elements.

Drive down any three characteristic of modern periodic table

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]