Which one of the following elements is not a transition metal?

Color of a matter is considered as a _____________ property.

A hydrocarbon contains 79.89% carbon and the remainder hydrogen. Determine the empirical formula of the compound.

A sample contains two carbons, six hydrogens, and one oxygen. Write its chemical formula.

Which compound is likely to be molecular?

The temperature of an patient is 100°F. Correctly estimating this temperature in Celsius.

You may have heard that when water freezes it is important to keep some empty space in the container. You may check the accuracy of that statement by following calculations. According to the following data what would be the volume of ice? 225 mL of water at 25°C is frozen at 0.0°C, (Density of water at 25°C = 0.997 g/mL; density of ice at 0.0°C = 0.917 g/mL)

Determine the mass percent oxygen in Al2O3.

Which of the following formulas is correct?

Which of the following statement contains both a quantitative and a qualitative information?

Which statement is not true about a Ni sample that has 8.90g in 1 mL ?

Which substance is most highly compressible?

Match with the correct answer. MgO

Match with the correct answer. H2S

Match with the correct answer. NaF

Match with the correct answer. PCl3

Which of the following cannot be the symbol of an element?

Aspirin, C9H8O4 is used as an important drug in medical field. How many carbon atoms would contain in 325 mg of aspirin?

From the given elements below which one is not a metal?

An organic compound has an empirical formula of C2H3O and had an approximate molecular weight of 86. What is its molecular formula?

Which of the following describes a chemical change?

Give an example of a Alkaline Earth Metal.

Mass of an unknown sample is 0.1265 kg. if its volume is 6.60 cm3. What would be the identity of an unknown sample?

Which is the best definition of a pure substance?

Find the molar mass of Ca(OH)2

Which compound is not an organic compound?

A statement that includes a measurement or number is a:

There is a mixture with more than two components. Each component is evenly distributed. This mixture is known as.

There is an element with three isotopes. The masses and the abundances are given below. Isotope 1: 27.977 amu (0.9222) Isotope 2: 28.974 amu (0.0469) Isotope 3: 29.974 amu (0.0310). Determine the atomic weight of the element.

How many electrons will nitrogen gain to acheive nearest nobel gas electron configuration?

There is an element with 38 protons, 38 electrons, and 48 neutrons. What would be the aproximate atomic mass of the element

What measurement 1 × 10-6 prefix means?

What answer correctly shows atoms of the following compound Al2(SO4)3?