1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Jobisdone [24]
2 years ago
7

A student collected the data shown in the table below during an experiment.

Chemistry
2 answers:
yuradex [85]2 years ago
6 0

Answer: A. An alcohol thermometer can measure the freezing point of a liquid that freezes at −80 °C.

Based on the data, which of the following conclusions can be made about the use of mercury and alcohol thermometers?

<u><em>A. An alcohol thermometer can measure the freezing point of a liquid that freezes at −80 °C</em></u>.

B. An alcohol thermometer can measure a wider range of temperatures in a laboratory.

C. An alcohol thermometer is more reliable to measure the temperature of a liquid in a beaker that is 80 °C.

D. An alcohol thermometer is better to measure the boiling points of colorless liquids.

Explanation:

I just took the test and the correct answer is A. An alcohol thermometer can measure the freezing point of a liquid that freezes at −80 °C!

Good Luck!!

yanalaym [24]2 years ago
4 0

Answer:

An alcohol thermometer can measure the freezing point of a liquid that freezes at −80 °C.

Explanation:

A thermometer is a device used to measure temperature. A thermometer must contain a thermometric substance. A thermometric substance is any substance having a particular physical property that changes with temperature.

For all liquid-in-glass thermometers, the property that changes with change in temperature is the height of the liquid. There are two kinds of liquid-in-glass thermometers; mercury-in-glass thermometer and alcohol-in-glass thermometer.

Alcohol-in-glass thermometer measures very low temperatures up to as low as -115°C. If it measures such a low temperature, then it can efficiently measure -80°C hence the answer.

Alcohol-in-glass thermometers have a narrower temperature range than mercury-in-glass thermometer. The later is well adapter for the measurement bof higher tempetures up to 357°C.

You might be interested in
What does the word "kinetic" indicate about
Natasha2012 [34]
It’s B. The kinetic molecular theory states that matter is made up of constantly moving particles.
4 0
1 year ago
Why the measured pressure of a gas under conditions that are very close to those that would result in condensation will be lower
Snowcat [4.5K]

Answer:

Inter-molecular forces and molecular volumes are the chief reasons for lower measured pressure

Explanation:

The kinetic theory assumes that gas particles occupy a negligible fraction of the total volume of the gas. It also assumes that the force of attraction between gas molecules is zero.

However, during high pressure, the volume of the gas particles are not negligible compare to the total gas volume and as such the volume of a real gas under such condition is higher than the Ideal gas. Vander-waal attempted to modify the ideal gas equation by subtracting the excess volume from the ideal equation. The increased volume is the reason the measured pressure of a real gas is  less than an ideal gas

On the other hand,  close to condensation, the other  assumption of negligible forces of attraction becomes invalid. As inter-molecular distances decrease, inter-molecular forces increase reducing the bombardment of the wall of the container due to restricted particle movement and lower measured gas pressure.

3 0
3 years ago
If 4.0 mol of NO and 4.0 mol of O2 are combined, how many moles
Masja [62]
4.0


i think it has something to do with molar ratios and finding the limiting reactant

4.0 mol NO * 2 mol NO2/2 mol NO = 4.0 moles of NO2

4.0 mol O2 * 2 mol NO2/1 mol O2 = 8.0 moles of NO2

so the limiting reactant (the reactant that runs out the quickest leaving an excess) is NO

once the limiting reactant is found, we can use that data for that substance to calculate the amount of product

4.0 mol NO * 2 mol NO2/2 mole NO = 4.0 moles of NO2

4 0
3 years ago
How can you tell if a fruit smoothie is a physical property or a chemical property
MrRissso [65]

Answer:chemical bc u cant un mix all the ingriedients in a smoothie

Explanation:

5 0
3 years ago
Read 2 more answers
Which root word of the binary ionic compound ends with -ide
kondor19780726 [428]

Answer: C. The non metal

Explanation:-

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

The nomenclature of ionic compounds is given by:

1. Positive ion or metal is written first.

2. The negative ion or non metal is written next and a suffix is added at the end of the negative ion. The suffix written is '-ide'.

For example: CsBr , cesium is metal having an oxidation state of +1 called as Cs^{+} cation and bromine Br^{-} is an anion with oxidation state of -1. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral CsBr called as cesium bromide.

4 0
2 years ago
Other questions:
  • Sheela wants to make a computer model of a land ecosystem. Part of her model simulates the chemical processes of photosynthesis
    7·2 answers
  • I need help
    5·1 answer
  • What is not true about most combustion reactions?
    13·1 answer
  • 2. A solution is 0.01 M in Ba2+ and 0.01 M in Ca2+. Sodium sulfate is added to selectively precipitate one of the cations, while
    13·1 answer
  • Determine the amount of atoms in 5.40g B
    11·1 answer
  • Answering questions by analyzing specific observations and using them to come to a more general understanding is known as ______
    12·2 answers
  • 5.Are pure solids included in equilibrium expressions? Explain your answer.
    14·1 answer
  • Who inspires you? Who do you aspire to be like?
    9·2 answers
  • 0.28gram of NH3 on decomposition gave 0.25gram of nitrogen and hydrogen. Find the volume of hydrogen evolved at Ntp. (2gram hydr
    13·1 answer
  • If you move at 50 meters in 10 seconds, what is your speed?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!