2. Which minerals contain the two most abundant elements by mass in Earths

a. Fluorite and calcite

b. magnetite and pyrite

c. amphibole and quartz

d. galena and sulfur

What do electrons charge

Select the correct electron configuration for Vanadium. (Atomic Number 23) 1s 2 2s 6 2p 3 3s 2 3p 4 4s 2 3d 5 1s 2 2s 2 2p 6 3s 2 3p 8 4s 2 3d 1 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 3 1s 2 2s 2 2p 5 3s 2 3p 7 4s 1 3d 4

What is the mass number of an element that has 30 protons, 35 neutrons and 30 electrons?

How many meters in 1000 mm

2H2 + O2 + 2H20 If you have 50 grams of hydrogen (H2), how many moles of water (H20) could be produced?

Which of the following organisms are carnivores? Producers Omnivores Consumers Decomposers

What is the number of moles in 2.33 L of H2S gas at STP?

Nitrous oxide (n2o), or laughing gas, is commonly used as an anesthetic in dentistry and surgery. how many moles are present in 8.4 liters of nitrous oxide at stp?

How can an atom be electrically neutral when it contains particles that are charged?

Is boiling water considered physical or chemical bond