Chem Eoc

Matter changes state when...

• energy is added or removed
• energy is added
• energy is removed
• there is no energy

Tags

NGSS.MS-PS1-4

When a gas forms directly into a solid, skipping the liquid phase

• deposition
• sublimation
• evaporation
• condensation

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Gases can be easily compressed, where as, liquids and solids cannot, why?

• weak force between molecules

• low energy between molecules

• strong force between molecules

• large space between molecules

Tags

NGSS.HS-PS1-3

Which color has the longest waves?

• red

• orange

• yellow

• green

Tags

NGSS.HS-PS4-1

Rutherford's gold foil experiment resulted in

• detection system did not work

• X-rays would be a better choice

• That gold foil is not a good choice

• structured differently then he originally hypothesized

An atom of fluorine has an atomic mass of 19 u. Keeping in mind that its atomic number is 9, what can you infer about this atom?

• it has 9 neutrons
• it has 10 electrons
• it has 10 neutrons
• it has 10 protons

Tags

NGSS.MS-PS1-1

150 grams of water is heated from 10 °C to 20 °C by a burning candle. How much energy was released by the candle? (The specific heat capacity of water is 4.2 J/g°C)

• 6300 J

• 315 J

• 81 J

• 24J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

How many electrons does an ion of Aluminum contain?

• 16

• 13

• 3

• 10

Tags

NGSS.HS-PS1-1

What i s the name and atomic mass of the atom modeled to the left? The protons are x.

• Boron, atomic mass 9

• Beryllium, atomic mass 9

• Boron, atomic mass 5

• Beeryllium, atomic mass 5

Tags

NGSS.HS-PS1-1

How many electrons does this magnesium ion have?

• 24

• 12

• 10

• 14

Tags

NGSS.HS-PS1-1