Is tap water a compound, a homogenous mixture, or a heterogeneous mixture?

In a calorimetry experiment, it was determined that a 92.0 gram piece of copper metal released 1860 J of heat to the surrounding water in the calorimeter (qcopper = - 1860 J). If the final temperature of the copper metal-water mixture was 25.

In the reaction CaCO3 → CaO + CO2 100 grams of calcium carbonate (CaCO3) is observed to decompose upon heating into 56 grams of calcium oxide (CaO) and 44 grams of carbon dioxide (CO2). This is an illustration of

How do you determine the environmental impact of human activities?

Which of these was not proposed by john dalton in 1805? A. All matter is made of atoms. B. Adams are made of protons, neutrons and electrons. C. During chemical reactions, atoms rearrange themselves. D.

Where is the energy in a glucose molecule stored? a. in the bonds between the atoms b. inside the carbon atoms c. inside the hydrogen atoms d. inside the protons?

What is potential energy? The energy of change The energy of position or composition The energy of mass or volume The energy of motion

How many significant figures are in the measurement 0.023040 cm?

Can y'all give me some examples of physical changes

A nitrogen-containing compound shows no absorption band at ∼3400cm-1 and no absorption bands between ∼1700cm-1 and ∼1600cm-1. what class of compound is it

What is the mass of 35.2 ml of a solution that has a density of 1.12 g/cm (in dimensional analysis)