Which contains 3 significant figures.

A. 5.0x10^2

B. 500

C. 0.001

D. 1.00x10^-3

E. 0.00100

F. 395

Under what reaction conditions could you perform a crossed Claisen reaction with an ester component that has only one alpha hydrogen

g The combustion of 1.877 1.877 g of glucose, C 6 H 12 O 6 (s) C6H12O6 (s), in a bomb calorimeter with a heat capacity of 4.30 4.30 kJ/°C results in an increase in the temperature of the calorimeter and its contents from 22.71 22.71 °C to 29.51 29.

In an experiment on obedience to authority, one subject tells another that the shocks might not be real. Which issue of invalidity is present in this scenario? A) John Henry effect B) contamination C) placebo effect D) Hawthorne effect

In which orbitals would the valence electrons for carbon (C) be placed? sorbital and d orbitals s orbital only p orbitals only s orbital and p orbitals

Is plastic wrap anf mixture or substance

Car Q and z are put though an endurance test to see if they can travel at 120 km/h for 5.0 hours. Each car has a 45-L fuel tank. Car z must stop to refuel after traveling for 4.2 hours. Car Q, however, travels for 5.4 hours before running out of gas.

What happened to the atoms in the heated metal ball so that it didn't fit through the ring?

A 3.00 L flexible container holds a sample of hydrogen gas at 153 kPa. If the pressure increases to 203 kPa and the temperature remains constant, what will the volume be?

Measurement of the functions of a nephron reveals a glomerular capillary pressure of 69 mm Hg, and a pressure in the capsular space of 15 mm Hg.

Water is unique because the density of it's solid is less than the density of it's liquid. Describe how life would be different if this weren't true