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?

At STP, fluorine is a gas and bromine is a liquid because, compared to fluorine, bromine has (1) stronger covalent bonds (2) stronger intermolecular forces (3) weaker covalent bonds (4) weaker intermolecular forces

Which of the following will affect the rate of a chemical reaction? 1) solvent concentration 2) solution volume 3) solute mass 4) solute concentration

How many O atoms are in 1.25 mol of SO2

A peptide bond forms between_? O a. adjacent amino acids held on a ribosome and bound to tRNAs. O b. an mRNA and an rRNA. c. a gene and a protein. O d. two pepto bismol tablets.

How many atoms of hydrogen are in two moles of ch4?

9. In a sample of gas, what causes pressure? Answer in a completesentence.

Sodium (Na) reacts with chlorine gas (Cl2 ) to form sodium chloride (NaCl) as shown in the equation: 2Na + Cl2 → 2NaCl If 4 moles of chlorine gas react, how many moles of sodium will react?

What are transuranium elements properties?

A geologist finds a section of rock that shows was ripple marks. What does it he pr send me or a ripple marks say about the area where the rock formed? A. the rock from rk s in a fast moving stream B.

375centimetercube of a gas has a pressure of 770mmHg. find it's volume if the pressure is reduced to 750mmHg