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
Vlad [161]
3 years ago
15

Question 13 (3.33 points)

Chemistry
1 answer:
NARA [144]3 years ago
7 0

Answer:

B. City B

Explanation:

From the weather chart, you can see that rain is indicated by the dot(.) sign. One dot means light rain and two dots mean steady light rain. The circle shading will show how much cloud in the city, ranging from no cloud(white circle), half covered (half black circle) and completely covered(black circle).

City A has neither cloud nor rain.

City B is completely covered by cloud and have steady light rain.

City C is half-covered with cloud, without rain.

You might be interested in
What do you think the biggest risk with genetic engineering is?
katrin2010 [14]

Answer:

Harmful toxins from crops have been found in peoples blood.

GM crops can cause allergic reactions in crops

Its dangerous to mess with nature this way when it should be a natural thing.

Explanation:

I'm in both Biology and Chemistry so I know a lot!

8 0
3 years ago
Which activity is an example of chemical change?
frutty [35]
An old penny rusting, remember you can’t undo a chemical change
3 0
3 years ago
As the temperature of a gas increases, _____. (select all the options that correctly complete the sentence.)
weeeeeb [17]

As the temperature of a gas increases, the average kinetic energy of the gas particles increases and the average speed of a gas particle increases.

According to the kinetic theory of gases, all gases are made of microscopic molecules that move in straight lines until they bump into another gas molecule or object. This transfer of energy causes molecules to move around faster and bump into each other more.

Kinetic energy is proportional to the speed of the molecules. As the speed of the colliding molecules increases, so does the total kinetic energy of all the gas molecules. It's pretty difficult to measure the speed of an individual gas molecule.

Instead, temperature can be used as a measure of the average kinetic energy of all the molecules in the gas. As the gas molecules gain energy and move faster, the temperature goes up. This is why Amy feels warmer!

To determine the average kinetic energy of gas molecules, we need to know the temperature of the gas, the universal gas constant (R), and Avogadro's number (NA).

Learn more about kinetic theory of gases here : brainly.com/question/11067389

#SPJ4

5 0
2 years ago
Cells, chromosomes, Body system, DNA (smallest to largest)
ValentinkaMS [17]

Explanation:

cells, dna, chromosomes, body systems

8 0
2 years ago
Medicinal “ether" is produced when ethyl alcohol is treated with an acid. How many grams of
DochEvi [55]

Answer:

34.3 g

Explanation:

Step 1: Write the balanced equation

2 CH₃CH₂OH ⇒ CH₃CH₂OCH₂CH₃ + H₂O

Step 2: Calculate the moles corresponding to 50.0 g of CH₃CH₂OH

The molar mass of CH₃CH₂OH is 46.07 g/mol.

50.0 g × 1 mol/46.07 g = 1.09 mol

Step 3: Calculate the theoretical moles of CH₃CH₂OCH₂CH₃ produced

The molar ratio of CH₃CH₂OH to CH₃CH₂OCH₂CH₃ is 2:1. The moles of CH₃CH₂OCH₂CH₃ theoretically produced are 1/2 × 1.09 mol = 0.545 mol.

Step 4: Calculate the real moles of CH₃CH₂OCH₂CH₃ produced

The percent yield of the reaction is 85%.

0.545 mol × 85% = 0.463 mol

Step 5: Calculate the mass corresponding to 0.463 moles of CH₃CH₂OCH₂CH₃

The molar mass of CH₃CH₂OCH₂CH₃ is 74.12 g/mol.

0.463 mol × 74.12 g/mol = 34.3 g

6 0
3 years ago
Other questions:
  • Help!! us own words, please!!
    10·1 answer
  • Sugar is easily soluble in water and has a molar mass of 342.30 g/mol. What is the molar concentration of a 259.8 mL aqueous sol
    15·1 answer
  • What is the enthalpy of reaction for the decomposition of calcium carbonate?
    8·1 answer
  • Both slicing a tomato and a chemical change such as burning toast cannot be reversed. However, why is slicing a tomato still con
    10·2 answers
  • A compound contains 24.27% C, 4.07% H and 71.65% Cl. The molar mass is about 99g.
    5·1 answer
  • Laura jala un trineo una distancia de 2000 cm usando una cuerda, con una tensión constante de 80 N. La tarea requiere de 800 J d
    14·1 answer
  • Is it tru that electrons pair only after each sub shell is full?
    8·1 answer
  • You are on vacation with your family up in the mountains. Your friend is on vacation near the equator by the ocean. Explain whic
    13·2 answers
  • How much heat is required to raise the temperature of 67.0 g of water from its melting point to its boiling point?
    7·1 answer
  • Semiconductors are more effective than metals as converters of solar radiation into electricity because?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!