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Questions in chemistry

📝 Answered - If atoms of a halogen nonmetal gain one electron, the atoms then have how many valence electrons?

📝 Answered - What is true about the atoms at the start of a chemical reaction compared to the atoms at the end of the reaction?

📝 Answered - In volumetric analysis, how does one convert concentration from g/dm\(^3\) to mol/dm\(^3\)?

📝 Answered - What is white light?

📝 Answered - Blue light has a frequency of [tex]$6.98 \times 10^{14}$[/tex] Hertz. What is the wavelength of blue light in nanometers? Why?

📝 Answered - Explain how an atom is composed of charged particles yet can have an overall charge of zero.

📝 Answered - At 4.00 L, an expandable vessel contains 0.864 mol of oxygen gas. How many liters of oxygen gas must be added at constant temperature and pressure if you need a total of 1.48 mol of oxygen gas in the vessel? Express the volume to three significant figures, and include the appropriate units.

📝 Answered - Name a monomer used to make poly(ethene).

📝 Answered - What net force will make a 5 kg bowling ball accelerate by 1.5 m/s\(^2\)?

📝 Answered - If you wanted to detect X-rays coming from the Sun, where would you place the detector, and why?