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egoroff_w [7]
3 years ago
5

Which of the following is an example of qualitative

Chemistry
1 answer:
vichka [17]3 years ago
4 0

Answer:

Option =C each mouse in the study has brown ears.

Explanation:

Qualitative:

Qualitative properties are those that can be only observed but not measured in numerical values. These are observed through senses: touch, sight, smell, taste and hear.

For example:

Color, odor, brittleness, taste etc.

Quantitative:

Quantitative properties can be measured in numerical values.

For example:

Melting point, boiling point, conductivity, viscosity, density, hardness and solubility.

In short we can say that qualitative is a measure of quality while the quantitative is a measure of quantity.

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the directions in the candy recipe for pralines instruct the cook to remove the pot containing the candy mixture from the heat w
Oksanka [162]

A Celsius thermometer with a range of -10°C cannot be used to determine when the soft ball stage is reached in the candy mixture.  

Temperature is most commonly measured with a thermometer that has two different scales: Fahrenheit and Celsius. Water freezes at 0°C and boils at 100°C on the Celsius scale and freezes at 32°F and boils at 212°F on the Fahrenheit scale.

Temperature of 236°F corresponds to 113.3°C. Now a Celsius scale has a maximum of 100°C on the thermometer. Hence a Celsius thermometer cannot be used to measure a temperature that corresponds to 236°F.  


3 0
3 years ago
Which central atom hybridization would you expect in the series bh−4, ch4, nh+4?
hoa [83]

Expected:

sp³ in all three molecules.

<h3>Explanation</h3>

The hybridization of the central atom is related to the number of electron domains around that atom.

\begin{array}{c|c|c}\textbf{Number of Electron Domains} & \textbf{Hybridization}&\textbf{Example}\\ 2 & \text{sp} & \text{C as in CO}_2\\ 3 & \text{sp}^{2} & \text{C in H}_2\text{C}=\text{CH}_2\\ 4 &\text{sp}^{3} & \text{C as in CH}_4\end{array}.

What is an electron domain?

  • An atom bonded to the central atom counts as one electron domain. That atom counts as one electron domain regardless of the bond order. One single bond counts as one electron domain. One double bond counts as one electron domain. One triple bond counts as one electron domain.
  • A lone pair of electrons count as one electron domain.

How many electron domains in BH₄⁻, CH₄, and NH₄⁺?

  • BH₄⁻: Four H atoms are bonded to the central B atom. That ensures an octet for the central B atom. No lone pairs are needed. Four electron domains from the four bonded atoms. sp³ hybridization.
  • CH₄: Four electrons domains with four H atoms and no lone pair. sp³ hybridization.
  • NH₄⁺: Four electrons with four H atoms and no lone pair. sp³ hybridization.
6 0
3 years ago
What must occur ??????
Vsevolod [243]

Air masses form fronts when B, they collide with each other

7 0
3 years ago
Beth has a one-day-old baby daughter. When Beth puts her finger in the baby’s hand, the baby grasps her finger. Which statement
Nina [5.8K]

Answer:

The baby`s reflex to grab is an innate behavior.

It`s not B because if the baby is 1 day old it`s not going to 'remember'.

It`s not C because it hasn`t really 'learned' anything.

It`s not D because babies can`t sense heat like a snake or something. -_-

Hope that helps

I also love the pfp

7 0
3 years ago
Read 2 more answers
When the sentence best describes mass movement
77julia77 [94]

The downhill flow of soil and rock resulting from gravity best describes mass movement.

6 0
3 years ago
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