#3 Fall Final Chemistry Review

what is the number .0000809 written in scientific notation?

• 8.09

What is the number 70500000 in scientific notation?

• 705

• 7.05

What is the number 34000 in scientific notation?

• 3.4

Aluminum and Oxygen combine to form which of the following compounds

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the chemical formula for Calcium Bromide?

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Match the following compounds containing polyatomic ions.

• Sodium Nitrite

• Potassium Phosphite

• Sodium Nitrate

• Potassium Phosphate

Tags

9-12-PS1.A-1

9-12-PS1.A-2

Significant figures: Round off this measurement to 3 significant figures.   35.27g

• 35.0g

• 35.2g

• 35.3g

• 35.30g

Significant figures: Round off this measurement to 2 significant figures.   0.414g

• 0.410g

• 0.42g

• 0.41g

• 0.4g

Dimensional Analysis (AKA: Unit Conversion): How many cm is equal to 1450 m?

Dimensional Analysis: Given 1 kg = 2.20 lbs, how many kilograms are in 338 lbs?

___ kg (3 significant figures)

• 743.6kg

• 153.6kg

• 154kg

• 744kg