Which is a pure substance

A) mixture

B) solution

C) element

why do volcanoes erupt? and why do people not have a warning for volcanic eruptions?

Examples of exponential decay in the real-world.

Sodium (na) has an atomic number of 11. how many electrons are in the outer electron shell of a neutral sodium atom?

How many neutrons are in the chlorine atom? How many electrons are in the chlorine atom? How many protons are in the chlorine atom?

Water is separated into hydrogen and oxygen gas by electrolysis A. Physical change B. Chemical change C. Both

A fish company delivers 22 kg of salmon, 5.5 kg of crab and 3.48 kg of oysters to your seafood restaurant. What is the mass, in kilograms of the seafood? What is the total number of pounds?

If 38.7 grams of lithium chlorate decomposes, how many grams of oxygen gas can be produced?

Balance the following redox equation in acidic solution using the smallest integers possible and select the correct coefficient for the H + (aq) ion.

Toussaint L' ouveeture lead a revolt that eventually resulted in Independence for

If a solution contains 1 x 106 hb molecules, how many o2 binding sites are available? if the solution of hb is 50% saturated with o2, how many binding sites are occupied by o2?