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
valina [46]
3 years ago
10

Read the selection from the section "Molecules In Motion." The molecules in the hot soup are traveling faster overall than they

did before the soup was heated. Conversely, the molecules in an ice cube are moving more slowly. Why did the author use the word "conversely"?
Chemistry
1 answer:
Hoochie [10]3 years ago
7 0

Answer: The author used the word "conversely" because the first statement he made is in CONTRAST to the second statement he made.

Explanation:

Matter is made up of atoms or molecules that are in constant motion. The motion of these tiny particles ( molecules) gives the object energy. The movement of these molecules depends on the state of matter which includes

--> GASEOUS STATE: Here, the particles are completely free to move and are always in motion.

--> LIQUID STATE: particles in this state slide by one another and are always in motion.

--> SOLID STATE: particles in this state are held tightly together but are always in motion.

Also, the molecules in motion are greatly affected by temperature changes. Increase in temperature will cause the particles in the liquid to move faster. Such is seen when soup is heated, the molecules travel faster than before. But the OPPOSITE is seen in an ice cube. This is because the ice cube is in solid state and of a lower temperature.

You might be interested in
Which statement is about weather and not climate?
zvonat [6]
The answer is A. because climate is an average of weather calculated over 30 years or more while weather is more the current forecast
6 0
3 years ago
Read 2 more answers
A race car travels a circular track at an average rate of 135 mi/hr. The radius of the track is 0.450 miles. What is the centrip
MaRussiya [10]
Thank you for posting your question here. I hope my answer will help. below are the choices that can be found elsewhere:

a. 300 mi/hr2 
<span>b. 61 mi/hr2 </span>
<span>c. 8,201 mi/hr2 </span>
<span>d. 40,500 mi/hr
</span>
Below is the solution:

<span>135 * 135 / 0.450 = 40,500 mi/hr2 </span>
4 0
3 years ago
Read 2 more answers
A 0.3146 g sample of a mixture of NaCl ( s ) and KBr ( s ) was dissolved in water. The resulting solution required 45.70 mL of 0
Masteriza [31]

Answer:

The answer to the question is

The mass percentage of NaCl(s) in the mixture is 49.7%

Explanation:

The given variables are

mass of sample of mixture = 0.3146 g

Volume of AgNO₃ required to react comletely with the chloride ions = 45.70 mL

Concentration of the AgNO₃ added = 0.08765 M

The equations for the reactions oare

NaCl(aq) + AgNO₃ (aq) = AgCl(s) + NaNO₃(aq)

AgNO₃ (aq) + KBr (aq) → AgBr (s) + KNO₃

The equation for the reaction shows one mole of NaCl reacts with one mole of AgNO₃ to form one mole of AgCl

Thus 45.70 mL of 0.08765 M solution of AgNO₃ contains\frac{45.7}{1000} (0.08765) = 0.004 moles

Therefore the sum of the number of moles of Br⁻ and Cl⁻

precipitated out of the solution =  0.004 moles

Thus if the mass of NaCl in the sample = z then the mass of KBr = y

However the mass of the sample is given as 0.3146 g which  means the molarity of the solution is 0.004 moles

given by

\frac{z}{58.44} + \frac{y}{119} = 0.004 moles  and z + y = 0.3146

Therefore z = 0.3146 - y which gives

\frac{(0.3146-y)}{58.44} + \frac{y}{119} = 0.004 moles

-8.7×10⁻³y +0.54×10⁻³ = 0.004

or 8.7×10⁻³y = 1.37769× 10⁻³

y = 0.158 g and z = 0.156 Thus the mass of NaCl = 0.156 g and the mass percentage = 0.156/0.3146×100 = 49.7% NaCl

The mass percentage of NaCl(s) in the mixture is 49.7%

8 0
3 years ago
Name 3 elements that are found in the human body
Taya2010 [7]

Answer:

oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus.

Explanation:

the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus.

8 0
3 years ago
Read 2 more answers
Chromium-58 is a(an)
MAXImum [283]

Answer:

Element

Explanation:

Chromium (24th Element) has 24 protons and 24 electrons.

Chromium is a Transition Metal.

Chromium has a molar mass of 52.00 g/mol.

Chromium-58 has 34 neutrons, 24 protons, and 24 electrons.

4 0
4 years ago
Other questions:
  • What determines the amount of chemical energy a substance has?
    14·1 answer
  • Predict the precipitate produced by mixing an Al(NO3)3 solution with a NaOH solution. Write the net ionic equation for the react
    6·1 answer
  • Why won't tap water boil at 100 degrees
    6·2 answers
  • Aluminum + hydrogen chloride &gt;
    12·1 answer
  • Express the following answers with the correct number of significant figures.<br> 3.582 ÷ 0.0131
    5·1 answer
  • I need it done assap
    5·2 answers
  • Chemical reaction when chromium metal is immersed in an aqueous solution of cobalt(II) chloride.
    10·1 answer
  • Like many other organic solvents we will use this semester, ethanol is flammable and caution needs to be exercised when heating
    12·1 answer
  • Why does Argon have a zero valency?<br><br>brainliest for the right answer​
    13·2 answers
  • Describe how water molecules can hydrate various substances
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!