3rd option 7th

The Law of Conservation of Mass means that in an isolated system matter cannot be____.

• created

• disturbed

• divided

• balanced

Tags

NGSS.MS-PS1-5

Which of these elements is the most chemically stable (inert)?

• Neon (Ne) 10

• Silver (Ag) 47

• Iron (Fe) 26

• Sodium (Na) 11

____________________ is the reverse of photosynthesis, turning sugars back into carbon dioxide.

• Weathering

• Respiration

• Decomposition

• Diffusion

____________________ in a formula tells the number of atoms of each element present.

• coefficient

• formula

• subscript

• symbol

During a sea breeze which way does the wind blow?

• from the land to the sea
• from the sea to the land

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

If beryllium has an atomic mass of 9 and 5 neutrons, how many protons does it have?

• 9

• 5

• 4

• 14

There are two different types of Carbon Cycles: Geological and Geological. To which cycle/cycles does volcanic eruption belong?

• Geological

• Biological

• Both

Ionic bonds ________________ electrons.

• share

• create

• delete

• transfer

Which of the following is not a product of photosynthesis?

• Carbon dioxide

• glucose

• oxygen

Tags

NGSS.MS-LS1-6

In the chemical reaction shown above, the products are best classified as ___________________________.

• two elements.

• one element and one compound.

• two compounds.

• two compounds and one element.