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
mixer [17]
3 years ago
15

For a solar eclipse to occur which of the following alignments is necessary? A. The moon is located along a straight line betwee

n the sun and earth B. the is located along a straight line between the sun and moon C. the moon is located from a line between the sun and earth D. the earth is located from a line 90 degrees between the sun and moon
Chemistry
1 answer:
Aloiza [94]3 years ago
8 0

For a solar eclipse t occur;

C. The moon is located from a line between the sun and earth

You might be interested in
Anhydrous calcium chloride is used after washing your organic product with water. the purpose of this step is to:
Ipatiy [6.2K]
The purpose of washing the organic product that contains water with anhydrous calcium chloride is to remove water from the organic product, thereby, increasing its purity. Calcium chloride is known to be one of the most effective drying agents together with sodium sulfate and magnesium sulfate. It is especially used for hydrocarbons. It is an inorganic salt that readily takes up the water from the organic product. 
7 0
3 years ago
Read 2 more answers
Two identical containers, one red and one yellow, are inflated with different gases at the same volume and pressure. Both contai
Evgen [1.6K]

Answer:

8

Explanation:

Here we're dealing with the root mean square velocity of gases. We'll provide the formula in order to calculate the root mean square velocity of a gas:

v_{rms}=\sqrt{\frac{3RT}{M}}

Here:

R = 8.314 \frac{J}{K mol} is the ideal gas law constant;

T is the absolute temperature in K;

M is the molar mass of a compound in kg/mol.

We know that the gas from the red container is 4 times faster, as it takes 4 times as long for the yellow container to leak out, this means:

\frac{v_{rms, red}}{v_{rms, yellow}} = 4

We also know that the temperature of the red container is twice as large:

\frac{T_{red}}{T_{yellow}} = 2

Write the ratio of the velocities and substitute the variables:

\frac{v_{rms, red}}{v_{rms, yellow}}=\frac{\sqrt{\frac{3RT_{red}}{M_{red}}}}{\sqrt{\frac{3RT_{yellow}}{M_{yellow}}}}=4

Then:

\frac{\sqrt{\frac{3RT_{red}}{M_{red}}}}{\sqrt{\frac{3RT_{yellow}}{M_{yellow}}}}=\sqrt{\frac{3RT_{red}}{M_{red}}\cdot \frac{M_{yellow}}{3RT_{yellow}}}=\sqrt{\frac{T_{red}}{T_{yellow}}\cdot \frac{M_{yellow}}{M_{red}}}=4

From here:

16 = \frac{T_{red}}{T_{yellow}}\cdot \frac{M_{yellow}}{M_{red}}

Then:

\frac{M_{yellow}}{M_{red}} = \frac{16}{\frac{T_{red}}{T_{yellow}}} = \frac{16}{2} = 8

5 0
3 years ago
Please Help Part B to question A
anyanavicka [17]

Answer:

Over the last century the burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.  as u know decreasing means going down and increasing means going up.  the reason why things decrease means something went wrong or something to happen to make it go down we all try to make things increase which means we try to make things go up instead of down. a lot of reasons is y things decrease is bc during the period of time something might go wrong or happen in a bad way that makes a lot of things decrease. for example like temperature when the temperature decreases it means it goes down and it might get cold but if the temperature increases it goes up so it might be ht or warm or maybe even cool. if something ever decreases it means during the period of time something bad happened and made it go down instead of up if something ever goes wrong that means something decreased. sometimes decreasing could be a good thing but most of the time it it bad  but there are sometimes when decreasing is good but not all the time.

8 0
2 years ago
Place the following events in sequence:
stepan [7]

Answer:

A, C, B

Explanation:

7 0
2 years ago
Read 2 more answers
Which of these is the smallest volume 500mL, 2,500 cm3, 5.5•10-1, 25 m3
mezya [45]
25m³.
500mL = 500cm³
25m³ = 2,500cm³
5.5x9 = 49.5(cm³)
25m³ is the smallest among the others.
5 0
3 years ago
Other questions:
  • Menthol the substance we can smell in mentholated cough drops is composed of carbon, hydrogen and oxygen. A 0.1005 grams sample
    9·1 answer
  • The half-life is the amount of time it takes for one-half of an isotope sample to decay into a different element. The half-life
    11·1 answer
  • 1) Chemical analysis of a gaseous compound show its composition to be 36.4% carbon, 57.5% fluorine, and 6.1%
    10·1 answer
  • Equilibrium is established between a liquid and its vapor when A. the rate of evaporation equals the rate of condensation. B. eq
    7·1 answer
  • Help!!!! describe three different things that could cause climate change.(Describe two that are naturally occuring, and one that
    6·1 answer
  • Which is a cationic detergent having four organic groups attached to a nitrogen atom and used to sanitize utensils? Select one:
    9·1 answer
  • How may moles are in 88.4 grams of Al(OH)3?
    8·1 answer
  • How does the lithosphere affect wildfires
    6·1 answer
  • What is culture?
    9·1 answer
  • Describe an experiment to show that pressure acts in all directions in liquids.​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!