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4 years ago

Classify each of the following properties of a cake as qualitative or quantitative. Give reasons for your answers

Chemistry

1 answer:

VashaNatasha [74]4 years ago

4 0

Answer:

The answer to your question is below

Explanation:

A qualitative property of matter is a property characteristic of a substance like color and flavor.

A quantitative property of matter is a property when we get a number.

A) it's a circular shape is a qualitative property because the shape is a qualitative property and shape is not represented by a number.

B) its mass is 1.5 kg is a quantitative property because we know a number of this mass.

C) it tastes like chocolate is a qualitative property because the flavor is characteristic of a substance and flavor is not measured in numbers.

D) it is 30 cm in diameter it is a quantitative property, we know the exact dimension of it.

E) its icing is melting is a qualitative property, melting is a property of ice, it just happens.

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What is the mechanical advantage of a wedge that is 2 inches at its widest part and has sloped side with a length of ten inches?

Artist 52 [7]

Answer:

Explanation:

Given parameters:

Width of wedge = 2inches

Length of sloped side = 10inches

Unknown:

Mechanical advantage = ?

Solution:

A wedge is a simple machine used to split devices into two. It is a simple chisel.

The input force is through the width and the output wok done is through the length of the slope.

Mechanical advantage is the ratio of the output force to the input force;

M. A = $\frac{Output force}{Input force }$

therefore;

M.A = $\frac{10inches }{2 inches}$ = 5

Mechanical advantage has no unit.

6 0

4 years ago

A 25.0g tin sample was placed in boiling water at 99.5 C until it had the same temperature. Afterwards, the tin sample was place

MrMuchimi

Answer : The specific heat of tin is, 0.213 J/g.K

Explanation :

Formula used :

$q=m\times c\times (T_{final}-T_{initial})$

where,

q = amount of heat lost = -399.4 J

c = specific heat capacity of tin = ?

m = mass of tin = 25.0 g

$T_{final}$ = final temperature = $24.5^oC=273+24.5=297.5K$

$T_{initial}$ = initial temperature = $99.5^oC=273+99.5=372.5K$

Now put all the given values in the above formula, we get:

$-399.4J=25.0g\times c\times (297.5-372.5)K$

$c=0.213J/g.K$

Therefore, the specific heat of tin is, 0.213 J/g.K

7 0

3 years ago

How much heat is necessary to change 10.0 g of water from 20 degrees celsius to 75 degrees celcius?

Step2247 [10]

Answer: 29.6

Explanation:

8 0

3 years ago

Determine the number of molecules in a 100. gram sample of CCl4

enyata [817]

100. g CCl4* (1 mol CCl4/ 153.8 g CCl4)* (6.02*10^23 CCl4 molecules/ 1 mol CCl4)= 3.91*10^23 CCl4 molecules.
(Note that the units cancel out so you get the answer)

Hope this helps~

8 0

3 years ago

What is the molarity of 0. 0688 g CoF2 in 20. 0 mL of solution?

nikklg [1K]

Answer: 0.035 M

Explanation:

6 0

2 years ago