The efficiency of a machine is always less than 100% because

Heating galactose, a monosaccharide sugar, in the presence of excess oxygen produces carbon dioxide gas and water vapor. Classify this reaction. C6H1206 (s) + 602 (9) - 6C02 (0) + 6H20 (9)

Which of the following is possible for aluminum to have a full outer shell? Question 13 options: Three electrons are gained, creating Al+3. Three electrons are lost, creating Al+3. Three electrons are gained, creating Al-3.

What the name for the compound CaF2

Question 1: Define the terms hypothesis, independent variable, dependent variable, and a controlled variable in your own words.

What if it is did Darwin used to support his theory of evolution

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:

The difference between ionic covalent and metallic bonding

As the speed of a particle increases, does its associated wavelenght increase or decrease