What is the colour of Bromine

A chemical reaction produces. 884 mols of H2S gas. what volume will the gas occupy at STP? Knowing the molar mass is 32.0 g/mol, what is the density of this gas?

Scientific models can be used for a variety of different purposes. Which of the following statements about scientific models is not true? a. Scientific models can save money and lives. b. Scientific models allow scientists to test their predictions.

In class 1500 students 1200 present find absent percentage

Which would have the longer wavelength, a photon with energy of 4.59 x 10^-19 J or a photon with energy of 3.01 x 10^-19 J

Which observation provided Albert Einstein the clue that he needed to explain the photoelectric effect

Determine the oxidation number of oxygen in the carbonate ion found in malachite

Is boron and chlorine covalent or ionic

Explain why ionic crystals melt at much higher temperatures than typical covalent molecular crystals

Why it is important that mRNA is transcribed correctly from the strand of DNA

A substance is on its fifth half-life. Which approximates the percentages of radioactive and stable isotopes, respectively? 96.9%; 3.1% 3.1%; 96.9% 12.5%; 87.5% 87.5%; 12.5% Need an answer fast