Question

1 of 2 27 Name f a liquid has a density of 2.71 what volume of the lquid has a mass of 45.0 g? 0.0602 mL c) 166 mL b) 122 ml 602ml How many seconds are there in seven days? 252x 10s LO1 10s a) b) 6.05x 10s 3.02x 10s d. Which of the following is true? a liquid has a definite shape a solid can be compressed easly the particles of a gas are far aparf a gas has a definite volume b) c) Which of the following is a physical property? a) carbon reacts with oxygen to produce carbon dioxide the density of platinum is 214 x 10 ь. steel wool rusts c) excess slomach acid is neutralized by antacids Which of the following is quantitative property? Oxygen is a odourless gas a waler solution of copper () sulfate is blue 2039 g of sugar can be dissolved in 100 g of water at 20°C mercury is a liquid at room temperature a. b. di Which of the following is a qualitative property? he density of mercury is L36 x 10 a) ь) slver melts at 96rC c) platinum bols at 3827 C sodum chloride is a white solid d)

Answer 1

Part 1.

27.

1.Volume = mass/density = (45/2.71) = 16.60 mL.

Option c is correct.

2.

Number of seconds in 7 days

7 day *

24 hr 60min 00sec 1 day ihr "imin

= 604800 sec

= 6.05*10⁵ sec.

Correct option a)

3.

Liquids does not have definite shape .

So first statement is not true.

Option a is correct.

4.

Density of a substance is a physical property.

Rusting , acid base neutralization and combustion are chemical change.

Option b is correct.

5.

Quantitive property measures amount of substance.

c) 203.9 g sugar can be dissolved in 100 g water at 20⁰ c