Apresenta somente ligação iônica:

a. HF

b. H2O

c. HBr

d. O2

e. NaBr

What reactant in photosynthesis provides the carbon atoms to form glucose?

One parent has the sickle cell disease gene, and the other parent does not. Which best describes the child's chances of getting sickle cell disease?

An atom of an element has 5 electrons in L-shell.

What is reactant, atom, product, and molecule

In gel electrophoresis, DNA fragments move across a gel. What causes them to move?

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