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
Oduvanchick [21]
3 years ago
14

In ancient times, what would the Moon have looked like from the Earth?

Chemistry
2 answers:
ss7ja [257]3 years ago
6 0
The moon would have appeared more vividly and brightly due to the absence of light pollution and smog
Ipatiy [6.2K]3 years ago
6 0

Answer:

It would have looked bigger. Active volcanoes might have been visible on it.

Explanation:

The most widely accepted theory of the Moon formation is Giant Impact hypothesis which states that a giant Mars sized celestial body: Theia hit planet Earth and the material that ejected out of the Earth coalesced and formed Moon. The Moon as observed today is moving away at a rate of around 4 cm per year which means that in ancient times it would have looked much bigger in the sky.

Frozen lava has been seen on the Lunar surface which are called as Maria (dark spots). In ancient times we could have witnessed those active volcanoes.

You might be interested in
Why do substances with different structures have similar conductivity values
weeeeeb [17]

Answer:

because of the material, they are made of      

Explanation:

like a paperclip and a car door maybe they both are metal or steel whatever they both can conduct energy. because of what they are made of.

i hope this helps and sorry i am rushing, i also just woke up

7 0
3 years ago
_____ are isotopes that emit radiation because they have unstable nuclei.
alexandr1967 [171]
The correct answer among the choices given is option B. Radioisotopes are isotopes that emit radiation because they have unstable nuclei. These are radioactive isotopes of an element. They are defined as atoms that contain an unstable combination of neutrons and protons.
7 0
3 years ago
Read 2 more answers
At 2000°C, the equilibrium constant for the reaction below is Kc = 4.10 ´ 10–4 . If 0.600 moles of NO is placed in a 1.0-L react
erastova [34]

Answer:

At equilibrium, the concentration of N_{2 (g)} is going to be 0.30M

Explanation:

We first need the reaction.

With the information given we can assume that is:

N_{2 (g)} + O_{2 (g)} ⇄ 2NO_{(g)}

If there is placed 0.600 moles of NO in a 1.0-L vessel, we have a initial concentration of 0.60 M NO; and no N_{2 (g)} nor  O_{2 (g)} present. Immediately, N_{2 (g)} andO_{2 (g)} are going to be produced until equilibrium is reached.

By the ICE (initial, change, equilibrium) analysis:

I: [N_{2 (g)}]=0   ;     [O_{2 (g)} ]= 0    ; [NO_{(g)}]=0.60M

C: [N_{2 (g)}]=+x   ;     [O_{2 (g)} ]= +x    ; [NO_{(g)}]=-2x

E: [N_{2 (g)}]=0+x   ;     [O_{2 (g)} ]= 0+x   ; [NO_{(g)}]=0.60-2x

Now we can use the constant information:

K_{c}=\frac{[products]^{stoichiometric coefficient} }{[reactants]^{stoichiometric coefficient} }

4.10* 10^{-4} =\frac{(0.60-2x)^{2}}{(x)*(x)}

4.10* 10^{-4}= \frac{(0.60-2x)^{2}}{x^{2} }

4.10* 10^{-4} * x^{2}= (0.60-2x)^{2}}

\sqrt{4.10* 10^{-4} * x^{2}}= \sqrt{(0.60-2x)^{2}}}

0.0202 x =0.60 - 2x

2x+0.0202x=0.60

x=\frac{0.60}{2.0202}= 0.30

At equilibrium, the concentration of N_{2 (g)} is going to be 0.30M

3 0
3 years ago
What is characteristic of a covalent bond?
dmitriy555 [2]
A.electrons are shared between two different nuclei
7 0
3 years ago
in their mechanism of action, a difference between lipid-soluble and water-soluble hormones is that _____.
LenKa [72]
<span>In their mechanism of action, a difference between lipid-soluble and water-soluble hormones is that </span>lipid-soluble hormones diffuse into the cell's plasma membrane to access protein receptors, while water-soluble hormones bind to protein receptors on the plasma membrane without diffusion.

Examples of lipid-soluble hormones are steroids. Examples of water-soluble hormones are polypeptides.
4 0
3 years ago
Other questions:
  • Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical
    6·2 answers
  • What is the percent composition of phosphoric acid H3PO4
    6·1 answer
  • Carbon monoxide (CO) reacts with hydrogen (H2) to form methane (CH4) and water (H20).
    5·1 answer
  • Juan needs to pour exactly 2 mL of hydrochloric acid into six different test tubes. Which of the following instruments would bes
    5·1 answer
  • A student analyze two diagrams of a nitrogen atom. both diagram shows seven protons in the nucleus, but the number of neutrons d
    14·1 answer
  • A 453 g piece of glass at 25.7∘C is left outside on a sunny day. How much heat must the glass absorb from the sun in order to re
    6·1 answer
  • A plane flew for 2 hours at 467 mph
    13·1 answer
  • Why has Earth's climate changed so rapidly in recent years?
    7·1 answer
  • Which ion can be both an oxidizing agent and reducing agent?
    9·1 answer
  • When 2.3 × 10^3 g of CaCO3 are heated, the actual yield of CaO is 1.09 × 10^3g. What is
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!