From Questions to Solutions

1. Evaluate: (i) \((1.2)^2\) (ii) \((0.7)^2\) (iii) \((0.04)^2\) (iv) \((0.11)^2\) 2. Evaluate: (i) \((0.3)^3\) (ii) \((0.05)^3\) (iii) \((1.5)^3\) 3. A bus can cover 62.5 km in one hour. How much

A cannon sitting on level ground is aimed at 45.0 degrees relative to the horizontal. It fires a test shot at a target located 100.0 meters away from the cannon

Which of the numbers below are whole numbers? Check all that apply.A. 99.8 B. 650 C. 87 D. 442.49 E. [tex]$\frac{1}{10}$[/tex] F. 6282

A wheelchair ramp rises from the ground at a 4.5° angle of elevation. The end of the ramp is 3 ft above the ground. How long is the ramp? Round

What are the temperatures for freezing water on the Celsius and Fahrenheit scales? What are the temperatures for boiling water at sea level on the Celsius and Fahrenheit scales?

A battery produces 36.6 V when 7.44 A is drawn from it, and 46.6 V when 2.52 A is drawn. What are the emf and internal resistance of the battery?

An experimental procedure calls for 35.9 g of sodium chloride and 15.2 g of silver nitrate. What tool should be used to measure these substances?

Calculate the following: a) [tex]46.3 \times 11[/tex] b) [tex]39.3 \times 23[/tex]

1) A chemical analysis of a gaseous compound shows its composition to be 36.4% carbon, 57.5% fluorine, and 6.1% hydrogen. A sample of 1.00 L of this gas has a

Joe measured the volume of an object 5 times and recorded the following results: 34.5 ml, 34.9 ml, 34.2 ml, 33.4 ml, and 35.9 ml. What is the average experimental

If 25.0 g of \(\text{NH}_3\) and 39.4 g of \(\text{O}_2\) react in the following reaction, how many grams of \(\text{NO}\) will be formed? \[ 4 \text{NH}_3 (g) + 5 \text{O}_2

You are given the balanced chemical equation below. If you start this chemical reaction with 0.53 moles of CH4 and 1.5 moles of O2, how many grams of CO2 are

Determine the number of moles in a 38.2 g sample of sodium chloride (NaCl).

Find the median for the following:(i) 72, 76, 64, 80, 68, 61, 85, 91, 62, 82(ii) 58, 54, 21, 51, 59, 46, 65, 31, 68, 41, 36(iii) 28.8, 20.6, 39.3,

How much heat must be removed to freeze a tray of ice cubes if the water has a mass of 40.0 g? (The molar heat of fusion of water is