What is electrorefinig

Which of the following should be classified as a mixture? water air iron helium

A mixture of n2 (g) and h2 (g) has mole fractions of. 40 and. 60, respectively. what is the density of the mixture at 1 bar and 0 degrees celsius?

What mass of water must be used to make a 1.35 m solution that contains 8.20 mol NaOH?

In pea plants, smooth seeds (S) are dominant and wrinkled seeds (s) are recessive. In a cross between two heterozygous plants, what are the possible allele combinations and seed types of the offspring?

Why is air a mixture? I do not understand why air is a mixture. can you guys write a brief explanation about why air is a mixture, whether it is homogeneous or heterogeneous, and how it can be separated.

The process of a material going through a change of state from a gas to a liquid is called

Which two chemical substances are needed to begin the photosynthesis factory process?

Consider the chemical reaction in equilibrium. According to Le Chatelier's principle, which statement correctly completes the table below?

There are six characteristics a substance must display in order to be classified as a mineral. explain those six characteristics.

How does the electron-cloud model describe electrons? A. The exact position of an electron can be known. B. An electron can be found at certain distances from the nucleus. C. An electron has a high probability of being in certain regions. D.