Chert has the following properties:

• made up of very fine sediment

grains

no fixed crystal structure

found in nature

solid

not a pure substance

• not made by organisms

Is chert a mineral or a rock?

Topsoil is usually eroded first because it

Which process increases the potential energy of the particles of a sample? (1) condensation (3) solidification (2) deposition (4) vaporization

an element has an atomic number of 99. the number of protons and electrons in a neutral atom of the element are

Which is the correct number of valence electrons in the element sulfur (s) ?

n a gas-phase equilibrium mixture of SbCl5, SbCl3, and Cl2 at 500 K, pSbCl5 = 0.17 bar and pSbCl3 = 0.22 bar. Calculate the equilibrium partial pressure of Cl2 given that K = 3.5 * 10-4 for the reaction SbCl5 (g) f SbCl3 (g) + C

how do geologists use seismic waves to locate an earthquakes epicenter

Which formula id correctly paired with its name? A. MgSO↓ = magnesium chlorine B. FeO = iron (|||) oxide C. K↓2O = Phosphorus dioxide D. CuCI↓2 = copper (||) chloride

Suppose you find a rock that contains some potassium-40 (half-life of 1.3 billion years). you measure the amount and determine that there are 5 grams of potassium-40 in the rock.

What are some positive and negative effects of the production of maple syrup on society and the environment?

Describe and give an example of parasitism.