Which of the following cannot be classified as a substance? gold table salt nitrogen air Description

A solution of 34% nacl is separated by a semipermeable membrane to a solution of 22% glucose. the membrane is only permeable to water. which direction will the net osmosis occur?

In the reaction C6H12 + __O2 → 6H2O + 6CO2, what coefficient should be placed in front of O2 to balance the reaction? 6 9 18 no coefficient is needed

If Earth was like a hardboiled egg, which part of Earth would the egg shell represent and why? Crust, as its depth is up to 3,000 kilometers Mantle, as its depth is up to 3,000 kilometers Mantle, as its depth is less than 100 kilometers Crust, as

What sex is the person who has the karyotype described in Steps 3-4? How do you know?

What is the single temperature in degrees Celsius which has the same magnitude in degrees Fahrenheit?

determine the specific heat of a material if a 35g sample absorbed 96 J as it was heated from 293 K to 313 K?

A compound that changes color when it comes into contact with an acid or base is an?

1. A food sample is burned in a calorimeter that contains 2000. g of water. The temperature increases from 22.0°C to 44.3 °C. How many Calories does the food sample contain, assuming all of the energy from the food was transferred into the water?

Why doesn't water light on fire? It has all the ingredients except heat! Hydrogen for the flammability factor, oxygen so it can keep burning, and all you need to do is add heat and BOOM you have a flame! 15 pts

The type of social bonds present in modern societies that are based on difference, interdependence, and individual rights is called: