Chem :3

chemical bonding

100

How many covalent bonds are formed when two hydrogen atoms bond together?

One covalent bond is formed 

200

Draw the lewis structure for a water molecule (H20)

Oxygen has two single covalent bonds w hydrogen and two lone pairs.

300

What type of bond form between sodium (Na) and chlorine (Cl), and why?

An ionic bond forms cause sodium transfers and electron to chlorine 

400

What ions are formed when magnesium bonds w oxygen? (include charges)

Mg2+ and O2- 

500

An atom gains 3 electrons. what is ts charge? and is it cation or a anion?

the charge is -3 and it is anion

Electron config n OB

100

How many electrons can the first energy level hold?

2 electronss

200

Write the noble gas config for sodium (Na)

[Ne] 3s¹

300

write the noble gas configuration fo chlorine (Cl). 

[Ne] 3s²3p⁵

400

Write full electron configuration for oxygen (O)

1s²2s²2p⁴

500

An orbital diagram shows two electrons w the same spin in one orbital what rule is being violated 

The Pauli Exclusion Principle

Bohr diagrams,isotopes,n gas laws

100

How many electrons r in tha outer shell of carbon

4 electrons :3

200

Draw a Bohr diagram for sodium (Na)

2 electrons in 1st shell, 8 in tha 2nd, n one in the third

300

Write isotope notation for carbon-14

¹⁴₆C

400

If a gas is heated and pressure stays constant, what happens to the volume??

The vol increases :3 

500

A gas has a Vol of 4 L at 2 atm. what is the vol at 4 atm?

2 L

Plate tectonics

100

What do triangles on a tectonic map represent? 

Convergent plate boundaries

200

what do arrows pointing away from each other show on a plate map? 

Divergent plate boundaries

300

Which plate boundarie did the Oreo cookie breaking apart represent???

Divergent boundary

400

Which plate boundary forms mountains but not volcanoes?

Continental- continental convergent boundary

500

How does density affect the movement of tectonic plates?

Denser plates sink beneath less dense plates during subduction

Metric conversions

100

Is melting ice endothermic or exothermic 

Endothermic

200

Convert 500 centimeters to meters

5 meters

300

A rock has a mass of 20 g and a Vol of 5 mL. what is its density?

4 g/mL

400

Why do wildfires spread faster on hot, dry days??

cause heat increases energy transfer and dry fuel ignites more easily 

500

describe how energy changes during combustion

chemical energy is converted into thermal and light energy