In this model of a molecule of ammonia, NH3, how many covalent bonds are represented?

If an energy level has each of these types of orbitals, then how many copies of it does it contain? Also, if each copy of an orbital can hold up to 2 electrons, then how many total electrons in that type of orbital are present in the energy level?

Describe what happens in a single replacement reaction. What can replace what?

CaO (s) + H2O (l) ⇌Ca (OH) 2 (s) + heat

What is one observation you can make aboit venus

A 0.500 g sample of TNT is burned in a bomb calorimeter containing 610 g of water at an initial temperature of 20.0 celcius. The heat capacity of the calorimeter is 420 J/C and the heat of combustion of TNT is 3374 kj/mol.

A body cools from 60°C to 50°C in 10 minutes. Find its temperature (in °C) at the end of next 10 minutes

my attic keeps making sound and thombs wat does it mean iam creeped out right now it just happened and the lightbulb was shaking

During what phase of the moon can a lunar eclipse occur? A) new moon B) first quarter C) waxing gibbous D) full moon

All bodies of water make up a earth's A. atmosphere B. asthenosphere C. hydrosphere D. lithosphere

Which characteristic provides clues to how igneous rocks were formes? A textures B color C luster D streaks