ACP REVIEW

Matter can exist as a solid, a liquid or a gas. The solid state is distinguished by its ability to —

• Be easily compressible

• take the shape of the container

• have particles of low density

• maintain and ordered patter

An unknown element was recently discovered and found to have the characteristics shown in the table. In which group does the unknown element most likely belong?

• Alkali Metals

• Alkaline Earth Metals

• Halogens

• Transition Metals

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

An unbalanced chemical reaction is shown.
 

___SnCl₄ + _____Fe → ____SnCl_{​​​​​​​2 +} ____FeCl_{​​​​​​​3}

When the equation is balanced, what is the coefficient of SnCl_{​​​​​​​2}?

• 2

• 3

• 4

• 6

Tags

NGSS.HS-PS1-7

What is the lewis dot structure for covalent compound sulfur dioxide

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

The Electron Sea Model explains why metals —

• are excellent conductors

• are very reactive

• accept electrons easily

• form ionic compounds

Tags

NGSS.HS-PS1-3

Which statement explains why metals conduct electricity?

• metals have loosely held delocalized electrons

• metals are hard and have high melting points

• metals lose electrons while bonding

• metals form covalent bonds

Tags

NGSS.HS-PS1-3

Which chemical name and formula are correct

• Potassium Chloride, PCl

• Carbon Tetrachloride, CCl4

• Sodium DIchromate Na2Cr2

• Magnesium Phosphide MgP

Tags

NGSS.MS-PS1-1

How many atoms are present in 2.50 grams of copper?

• 8.94 x 10 ^ 23 atoms

• 6.02 x 10^ 23 atoms

• 5.92 x 10^ 20

• 2.37 x 10^22

A rock is found to contain three isotopes of an unknown element (X), as shown in the table. Based on the data in the table, what is the average atomic mass of the unknown element?

• 58.9 atomic mass units

• 57.1 atomic mass units

• 56.9 atomic mass units

• 55.0 atomic mass units

Tags

NGSS.HS-PS1-7

The molar mass of water is 18.015 g. What is the percent composition of oxygen in water, H₂O?

• 6.300%

• 11.191%

• 33.333%

• 88.809%