All categories

3 years ago

Which of the following describes qualitative data

Chemistry

2 answers:

prohojiy [21]3 years ago

6 0

The correct answer is: "Noting the color of a solution as it is heated."

To understand this answer, let's first clarify what qualitative data is: Qualitative data is data that is descriptive, describes the attributes of something and it cannot be represented numerically. From the options listed the question, noting the color of a solution as it is heated, is the only statement that describes qualitative data. The color of a solution is an attribute of the solution that <em>cannot</em> be represented quantitatively-using numbers. On the other hand, the other options listed describe <em>quantitative data</em>, which are all measurable and can be represented numerically.

Svetllana [295]3 years ago

5 0

Option "C" Noting the color of a solution as it is heated.

You might be interested in

If a beaker of water and a beaker of acetic acid are at the same elevated temperature, which will cool more quickly to room temp

WINSTONCH [101]

Beaker of water i guess because usually at home when i get out cold water i put in my room and it cools fast for me so..... i think

3 0

3 years ago

What is the specific heat of a substance if a mass of 10.0 kg increases in temperature from 10.0°c to 70.0°c when 2,520 j of hea

LekaFEV [45]

Answer:

0.00420

Explanation:

The equation is Q=mc(T(final)-T(initial), where c is the specific heat, Q is heat supplied, m is mass, T(final) is final temperature and T(initial) is initial temperature (you'll see this written as delta T, which means change in temperature).

2520 = Q

m = 10.0kg; answer choices are in g, not kg, so multiply by 1000 to get m in g; m = 10000 g

Plug in the values you have and solve for c.

2520=(10000)(c)(70-10)

2520=600000c

c=0.0042 j/(gc)

5 0

2 years ago

Read 2 more answers

Phosphorus oxychloride has the chemical formula POCl3, with P as the central atom. In order to minimize formal charge, how many

Elina [12.6K]

Answer:

Phosphorus makes 5 bonds with other atoms

Explanation:

$POCl_{3}$ has total 32 number of valence electrons (P has 5 , O has 6 and Cl has 7 valence electrons).

These valence electrons are used to draw Lewis structure of $POCl_{3}$ .

Formal charge on an atom = (no. of valence electrons of the atom)-(no. of covalent bonds attached to the atom)-(no. of electrons in lone pair of the atom)

Applying octet rule (atoms have eight electrons in their valence shell) and minimizing formal charge of $POCl_{3}$ , it has been found that P makes total 5 bonds with rest of the atoms.

Lewis structure of $POCl_{3}$ along with formal charge (in parentheses) has been given below.

6 0

2 years ago

What is the reason why carbonated beverages be kept cold?

Makovka662 [10]

Option A) Decreased temperature keeps gases like carbon dioxide dissolved.

Carbonation is made with CO2 which is also know as liquid carbonic. The low temperature favors higher solubility of CO2 in water

3 0

3 years ago

Which happens when water freezes?

hodyreva [135]

Answer:

B) water changes to ice

Explanation:

since its already water, it cant be anything beginning with steam.

3 0

2 years ago