A dense mix of dry, hot rock fragments and hot gas erupting from volcanic vents at high speed is

pyroclastic flow.

lahar.

fumarole.

tephra.

What are some examples of monomers and oligomers? If a chemical compound accelerates and regulates metabolic reactions, which type of role does it play - structural or physiological? ... ?

If 112 g of iron (Fe) combines with 24 g of oxygen (o2) how much iron oxide is formed

How does atomic radius change from top to bottom in a group in the periodic table?

Which equation shows the relationship between the Kelvin and Celsius temperature scales? A. K = °C + °F B. K = °C + 273 C. K = °F + 273 D. K = 273 - °C

The formula of heavy water

A reaction starts with 20.0 grams of lithium hydroxide (LiOH) and produces 31.0 grams of lithium chloride (LiCl), what is the percent yield of lithium chloride (LiCl) ? * LiOH + KCl - LiCl + KOH A) 64.5% B) 88.6% C) 81.5% D) 92.8%

You aren't sure if your pH meter needs to be calibrated, so you put it in a buffer solution that has a known pH of 7. You take four separate readings of the solution with the pH meter. The meter reports the pH as 5.5, 8.6, 6.3, and 9.4.

Can you explain and read this equation 2Mg + 02 - - 2MgO

The label of a gas cylinder has come off in your laboratory. You know that only one species of gas is contained in the cylinder, but you do not know whether it is hydrogen, oxygen, or nitrogen.

Give two example of compound that decompose to give off oxgyen gas