When you look under your plastic water bottle, there's a recycling sign with a number in it. What does it mean?

At what ph did you see the highest activity of salivary amylase

Identify the substance that each property describes. only acid only base both acid and base feels slippery tastes sour conducts electricity

Methanol (CH3OH) has a heat of fusion of 3.16 kJ/mol. Which of the following is the heat of solidification that occurs when 64 grams of liquid methanol freezes? -199 kJ -6.32 kJ 199 kJ 6.32 kJ

Which of the following statements about the suns feature is true?

Determine the percent yield for the reaction between 3.74 g of na and excess o2 if 5.34 g of na2o2 is recovered.

What is the twisted ladder shape of the DNA called? 3-D model nucleotides double helix single strand

How many moles of sodium nitrate NaNO3 would be produced from the complete reaction of 253 g sodium chromate Na2CrO4

The equilibrium constant for the production of carbon dioxide from carbon monoxide and oxygen is kc=2*1011 this means that the reaction mixture at equilibrium is likely to consist of

Arrange these compounds in order of increasing standard molar entropy at 25°C: C3H8 (g), C2H4 (g), ZnS (s), and H2O (l).

A gas has a temperature of 14 degrees C and volume of 4.5 liters. If the temperature is raised to 29 degrees C and the pressure is not changed, what is the new volume of the gas? .