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
d1i1m1o1n [39]
2 years ago
6

Scientists used a powerful telescope to discover the caloris crater on mercury

Chemistry
1 answer:
Drupady [299]2 years ago
6 0

Answer:

True

Explanation:

Mercury is one of the five classical planets visible with the N4KED eye and is named after the swift-footed Roman messenger god. It is not known exactly when the planet was first discovered - although it was first observed through telescopes in the seventeenth century by astronomers Galileo Galilei and Thomas Harriot.

You might be interested in
In this reaction: Mg (s) + I₂ (s) → MgI₂ (s) If 2.68 moles of Mg react with 3.56 moles of I₂, and 1.76 moles of MgI₂ form, what
melomori [17]

Answer:

Y=65.7\%

Explanation:

Hello,

In this case, for the given chemical reaction, we first identify the limiting reactant by noticing that due to the 1:1 mole ratio for magnesium to iodine the reacting moles must the same, nevertheless, there are only 2.68 moles of magnesium versus 3.56 moles of iodine, for that reason, magnesium is the limiting reactant, so the theoretical turns out:

n_{MgI_2}^{theoretical}=2.68molMg*\frac{1molMgI_2}{1molMg} =2.68molMgI_2

Thus, we compute the percent yield as:

Y=\frac{n_{MgI_2}^{real}}{n_{MgI_2}^{theoretical}} *100\%=\frac{1.76mol}{2.68mol} *100\%\\\\Y=65.7\%

Best regards.

8 0
3 years ago
If 42 grams of carbon and 52 grams of oxygen are used, how many grams of CO2 will be produced (Hint: find the
zavuch27 [327]

Answer:

71.5g

Explanation:

The reaction equation is given as:

               C  +  O₂  →  CO₂

Mass of C = 42g

Mass of O₂  = 52g

Unknown:

Mass of CO₂ produced  = ?

Solution

Now to solve this problem, we have to find limiting reactant which is the one given in short supply in this reaction.

 The extent of the reaction is controlled by this reactant.

Find the number of moles of the given species;

 Number of moles  = \frac{mass}{molar mass}

      Number of moles of C  = \frac{42}{12}   = 3.5mol

     Number of moles of O₂   = \frac{52}{32}   = 1.63mol

Now;

   From the balanced reaction equation;

           1 mole of C reacted with 1 mole of O₂

We see that C is in excess and O₂ is the limiting reactant.

            1 mole of O₂ will produce 1 mole of CO₂

 So;      1.63mole of O₂ will produce 1.63 mole of CO₂

Mass of CO₂ = number of moles x molar mass

       Molar mass of CO₂ = 44g/mol

Mass of CO₂ = 1.63 x 44 = 71.5g

8 0
2 years ago
Methane (CH 4 ) , ammonia (NH 3 ) , and oxygen () can reaci to form hydrogen cyanide (HCN) and water (H 2 O) according to this e
Taya2010 [7]

Answer:

16 g

Explanation:

7 0
3 years ago
An object floats im sea water more readily because of sea water’s
Taya2010 [7]
Because of the sea waters density. If an object is less dense than the water it would not float
7 0
3 years ago
Read 2 more answers
What is the role of a consumer in the flow of energy through a food chain?
pogonyaev

Answer:

The role of consumers in an ecosystem is to obtain energy by feeding on other organisms and sometimes transfer energy to other consumers. Changes that affect consumers can impact other organisms within the ecosystem.

Explanation:

Hope this helped Mark BRAINLIEST!!!!

4 0
3 years ago
Other questions:
  • The predominant intermolecular force in (ch3)2nh is ________. the predominant intermolecular force in (ch3)2nh is ________. lond
    13·1 answer
  • A 250 l container with 2.86 kg of propane gas (c3h8) is at a temperature of 30.2 ºc. what is the pressure (atm) of the gas?
    7·1 answer
  • What volume would 25.0g of Oxygen occupy at STP
    5·1 answer
  • How many moles are in 8.63 x 103 atoms of Li?
    9·1 answer
  • What is the chemical symbol for fluoride
    6·2 answers
  • A sample of water is cooled from 45°C to 35°C by the removal of 84 Joules of heat. What is
    11·1 answer
  • During the process of succession,
    14·2 answers
  • Which terms describe plastics that can and potentially be recycled?
    7·1 answer
  • With the atomic number 1 and an atomic mass of 1.0079, hydrogen has _________.
    15·2 answers
  • What percentage of water do we use for flushing our toilets?.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!