How many electrons are located in the valence energy level of elements of Group 15?

a-2

b-3

c-4

d-5

What volume of chlorine gas at 45.3 c is needed to react with 14.2g of sodium to form nacl at 1.72 atm?

GenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new automated system that can detect normal levels of dissolved immunoglobin A (10. to 30./μgmL), using a blood sample that is as small as 2.0mL.

Where is the mass of a black hole located

When the temperature of a reacting mixture increases, the rate of reaction increases. Which statement explains why the rate of reaction increases?

What is a negatively-charged subatomic particle that resides outside of the nucleus in the electron orbital, lacks functional mass, and has a negative charge of - 1?

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: