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
faltersainse [42]
3 years ago
11

What did ancient astronomers think areas of the moon called mares might be?

Chemistry
1 answer:
RUDIKE [14]3 years ago
7 0

Answer: seas

Explanation:

The ancient astronomers thought the mares on the moon were seas.

You might be interested in
What is the concentration of H+ ions at a pH = 11?
natta225 [31]

Answer:

\huge 1 × {10}^{-11} \: \: M

Explanation:

The pH of a solution can be found by using the formula

pH = - log [ {H}^{+} ]

Since we are finding the H+ ions we find the antilog of the pH

So we have

11 =  -  log({H}^{+})  \\ {H}^{+} =  {10}^{ - 11}

We have the final answer as

1 × {10}^{-11} \: \: M

Hope this helps you

6 0
3 years ago
How many grams of h20 are produced if 75g of CO2 are produced. (Work Shown with the answer would be preferred.)
Agata [3.3K]
2:7 ratio of ethane to O2 = 15:x 9solve for x)
x=52.5 mol O2
5 0
3 years ago
Arrange the metallic elements in order of increasing reactivity. Use the periodic table to identify their positions on the table
7nadin3 [17]

Answer:

Magnesium>Calcium>Potassium>rubidium

Explanation:

7 0
3 years ago
Read 2 more answers
7. Given the balanced equation:
Vika [28.1K]
Gas molecules have more freedom in motion—and gases can be thought of as more “disordered”—than molecules of a solid, which are rigidly held in place. When it comes to phases, the entropy increases as you go from a solid to liquid to gas (the gaseous state having the greatest entropy and the solid state having the least).

So, as a sample of solid iodine sublimes to form gaseous iodine, the entropy of the sample increases.
4 0
3 years ago
Do you think the continents will ever rejoin to form another supercontinet like pangaea? why or why not?
shusha [124]
No because it would have to take an exponential amount of time in which the sun is more likely to explode.
7 0
3 years ago
Other questions:
  • A green laser pointer emits light with a wavelength of 542 nm. What is the frequency of this light?
    15·1 answer
  • Which of the following is the most reactive?
    14·1 answer
  • Which element is reduced in the following reaction: 2Mg+O₂ → 2MgO if Mg goes from 0 to +2 and O goes from 0 to -2?
    8·1 answer
  • Which is an example of a chemical reaction?
    10·1 answer
  • An evacuated 276 mL glass bulb weighs 129.6375 g. Filled with an unknown gas, the bulb weighs 130.0318 g. Calculate the gas dens
    11·1 answer
  • galvanic cell is powered by the following redox reaction: (g) (aq) (l)(aq) (s) (aq) Answer the following questions about this ce
    9·1 answer
  • You have 100. grams of potassium fluoride (KF). How many moles do you have? (1 mole KF = 58.09 g KF) *
    7·1 answer
  • Which of the following groups have seven valence electrons and are very reactive?
    10·2 answers
  • (Use your notes and info from active readings to explain WHY/HOW the science backs up your procedure) (BELOW)
    6·1 answer
  • In order for the process to be endothermic, the energy required to break the lattice has to be _______ than the energy released
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!