Which element is a metalloid? 1. Al 2. Ar 3. As 4. Aa

The atoms of a metalloid have 6 valence electrons. The metalloids is used as a semiconductor. Which best describes the electron shell in which the valence electrons are located

How many grams of CO2 are in 14 mol of the compound?

10 moles of carbon dioxide has a mass of 440 g. What is the relative formula mass of carbon dioxide?

Is the periodic table organized by ions and what does form the same kinds of ions mean?

A wave with low energy will also have high frequencies and long wavelength. short wavelengths and high frequencies. low frequencies and short wavelength. long wavelengths and low frequencies.

Convert 0.00290 decigrams per milliters to nanograms per kiloliters

Is the periodic table of the elements all of the atoms known to exist?

You hold a handful of rocks and a handful of feathers. The rocks feel heavier than the feathers, even though you hold the same amount of both.

Find the mass of 1.112 moles HF?

Consider the formation of glucose from carbon dioxide and water, that is the reaction of the photosynthesis process: