water chemistry

Water is a universal solvent

• True
• False

Tags

NGSS.HS-ESS2-5

What is water made of?

• Water
• Liquid
• Hydrogen and oxygen
• Blue 

Tags

NGSS.MS-PS1-1

Which end of the water molecule has a slightly positive charge?

• the oxygen end
• the hydrogen end
• both ends are slightly positive
• neither end is positive

Tags

NGSS.MS-PS1-1

Water is a universal solvent because it...

• It can be found anywhere
• It freezes when it gets cold
• floats when frozen
• Dissolves most substances

Tags

NGSS.HS-ESS2-5

Subatomic particles with a positive charge

• neutrons
• atomic mass
• protons
• isotopes

A charged atom

• Ion
• Isotope
• Electron Cloud
• Quark

Tags

NGSS.MS-PS1-1

Which particle is negatively charged?

• proton
• atom
• neutron
• electron

How many electrons does this picture show?

• 4
• 5
• 6
• 3

Tags

NGSS.MS-PS1-1

How do covalent bonds form?

• Donating & receiving valence e- between atoms.
• Opposite slight charges attract each other between compounds.
• Scientists are still not sure how they form.
• Sharing valence e- between atoms.

Tags

NGSS.HS-PS1-2

What do we call a covalent bond where electrons are shared UNEVENLY or UNEQUALLY?

• Ionic
• Polar Covalent
• Nonpolar Covalent
• Van der Waals Force