Which is the electron configuration for lithium?

2.00 mL of a 0.75 M solution of potassium permanganaté K2 MnO4 Solution is us od 10 make a 500-00 mL solution. what is the concentration of the new solution.

In 400 B. C., a Greek philosopher named Democritus theorized that matter is made of simple parts. He called these parts atoma, or atoms. In 1897, a British physicist named Joseph Thomson discovered electrons.

Which quantity repsresents the number of protons in an atom

The characteristics of two methods of heat transfer are listed below: Method A: No material medium is required and heat is transferred in all directions Method B: Material medium like gas or liquid is required and heat is transferred only in the

13.15km is greater or less than 1500m

How many moles are in 12.5 g of H2O

How do the atomic number and the number of protons relate to one another? The atomic number tells us the number of protons The atomic number is protons + neutrons They do not Electron Cloud

Check my work? 150 g of an unknown liquid is heated with 24,975 kJ of heat to form 0°C to 75°C. Identify the unknown liquid. Substance C (J/g-°C) Water (ice) 2.05 Ammonia (liquid) 4.70 Ethanol 2.44 Gasoline 2.22 Water (liquid) 4.18 Water (vapour) 2.

The distance from the sun to the earth is 1.496x10^8 km. How long does it take light to travel from the sun to the earth

10. Airbags in automobiles contain the compound sodium azide, NaN3. A crash triggers the decomposition reaction of NaN3 to produce nitrogen gas, which causes the airbag to inflate. How many grams of NaN3 are required to produce 90.