Alexander is a police officer he maps a crime scene by measuring all objects using two baseline objects which type of mapping Alexander uses

Which of the following best describes a mixture in which ionic compounds are dissociated in solution? a. ion solution b. aqueous solution c. hydraulic solution d. hydrochloric solution

The table below gives information about the nucleus of each 4 atoms Atom Number of protons Number of neutrons A 6 6 D 6 7 G 7 7 E 7 8 How many different elements are represented by the nuclei in the table? A 1 B 2 C 3 D 4

The combustion of methyl alcohol in an abundant excess of oxygen follows the equation: 2CH3OH + 3O2? 2CO2 + 4H2O When 3.85 g of CH3OH was mixed with 6.15 g of O2 and ignited, 3.65 g of CO2 was obtained. What was the percentage yield of CO2?

When the particles of two objects have the same average kinetic energy, what do we know about those objects?

Explain how Dalton improved upon atomic theory more than 2000 years after Democritus's hypotheses about atoms.

Consider the following half-reactions: Half-reaction E° (V) I2 (s) + 2e - 2I - (aq) 0.535V 2H + (aq) + 2e - H2 (g) 0.000V Zn2 + (aq) + 2e - Zn (s) - 0.

Where did the longest tsunami form?

Calculate the number of H atoms in 0.190 mole C 6 H 14 O .

What fuel is produced by the electrolysis of water? chlorine gas hydrogen gas natural gas oxygen gas

Model describe how you would show j. j. thomson's model of the atom using small beads and clay