Is this solution saturated or unsaturated? How can you tell? the solution is strontium and phosphate mixed in water

Why did Mendeleev put bromine (Br) and chlorine (Cl) in the same group on the periodic table They have similar masses. They have similar properties. They are both gases. They are similar alphabetically.

An aqueous solution contains 0.30 M nitrous acid. One Liter of this solution could be converted into a buffer by the addition of: (Assume that the volume remains constant as each substance is added.) A. 0.31 mol NaNO2 B. 0.074 mol Ca (OH) 2 C. 0.

If I have an unknown quantity of gas at a pressure of 380 mmHg, a volume of 25 L, and a temperature of 300° K, how many moles of gas do I have?

A mixture of C3H8 and C2H2 has a mass of 2.8 g. It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.6 times as many moles of CO2 as of water. Find the mass of C2H2 in the original mixture.

Summarize how the periodic table is organized, use the worlds period and group

Write a sentence using the term atomic theory

Which of the following groups contains mostly radioactive elements? Question 5 options: nonmetals alkaline earth metals halogens inner transition metals

Who further developed Democritus's early contributions to the atomic theory by proposing that each chemical element has its own kind of atom?

Which is the best metal to use in an alloy to increase its electrical conductivity? A) Al B) Cu C) Fe D) Sb

Which of the following is chemically inert (unreactive) ? Select one: (A) carbon (atomic number 6) (B) sodium (atomic number 11) (C) neon (atomic number 10) (D) oxygen (atomic number 8)