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
natta225 [31]
2 years ago
13

How many atoms are in 2.75 moles of Mercury (Hg)?

Chemistry
1 answer:
lisov135 [29]2 years ago
6 0

Answer:Imole H atoms have a mass of 1.007959. Example Problems: Use dimensional Analysis! 1. How many grams of carbon contain 2.0 moles of carbon atoms? 2.0 moles

Explanation:

You might be interested in
Charles’ law explains which of these phenomena?
irakobra [83]
The answer is A. <span>why a balloon deflates when the air around it cools </span>
8 0
3 years ago
Read 2 more answers
According to Arrhenius, NH4+ an acid or a base? Write an equation to support
sergejj [24]

According to Arrhenius definition of acids, NH4^+ is an acid.

According  to Arrhenius  definition of acids and bases, acid is any substance that produces hydrogen ion in solution as its only positive ion.

Following this definition, let us now consider what happens when NH4^+ is introduced into a water;

NH4^+(aq)-------> NH3(aq) + H^+(aq)

Hence, according to Arrhenius definition of acids, NH4^+ is an acid.

For another example of Arrhenius acids, see

brainly.com/question/516295

8 0
3 years ago
Which beaker are the molecules are moving faster, and which beaker is it hotter?
MaRussiya [10]

Answer:

1.A

2.B

Explanation:

5 0
2 years ago
In the reaction of aluminum hydroxide and caldium nitrate, how many grams of calcium hydroxide will be formed if 12.55 g of alum
Dahasolnce [82]

Answer:

17.76g

Explanation:

We need to write a balanced chemical equation for the reaction:

2Al(OH)3 + 3Ca(NO3)2 ——> 3Ca(OH)2 + 2Al(NO3)3

In the reaction above, it can be seen that 2 moles of aluminum hydroxide yielded 3 moles of calcium hydroxide. This is the theoretical viewpoint.

Now we need to know what actually happened. We need to calculate the actual number of moles of aluminum hydroxide reacted l. We can get this by dividing the mass by the molar mass.

The molar mass of aluminum hydroxide is 27+ 3( 16+1)

= 27 + 51 = 78g/mol

The number of moles is thus: 12.55/78 = 0.16 moles

Now if 2 moles of aluminum hydroxide gave 3 moles of calcium hydroxide, 0.16moles will give : (0.16*3)/2 = 0.24moles

Now we can calculate the mass of calcium hydroxide formed. The mass of calcium hydroxide formed is the number of moles multiplied by the molar mass.

The molar mass of calcium hydroxide is; 40 + 2(17) = 74g/mol

The mass is thus =74 * 0.24 = 17.76g

7 0
3 years ago
A student is studying asbestos, a mineral that causes cancer in humans. One of the components of asbestos is silicon, a somewhat
kondaur [170]

Answer:

The characteristic of silicon that is most closely related to its chemical reactivity is that;

It is found in nature in mainly as oxides and silicates

Explanation:

Silicon, which is a member of group 14 of the periodic table has the electron configuration of [Ne]3s²3p² and has a high affinity for oxygen such that the the oxides are known as silicates and it is almost impossible to find pure silicon in nature and it is found in the universe as silica and silicates

Silicate minerals make up over 90% of the Earth's crust such that, by mass silicon is only surpassed by oxygen as the most abundant element found in the Earth's crust.

6 0
3 years ago
Other questions:
  • Which of the following devices can measure only atmospheric pressure?     
    11·1 answer
  • A _________ is the distance light travels in one year. How many miles is this?
    15·2 answers
  • Draw the conjugate acid of ethanol
    5·1 answer
  • How many traditional areas of study can chemistry be divided into
    9·1 answer
  • a solution of hydrochloric acid contains 1.5 moles of the solute in 2.0 liters of solution. calculate the molarity of this solut
    8·1 answer
  • The diagram shows the direction of oxygen transfer from red blood cells to body cells.
    7·1 answer
  • What is the percent composition of Copper in CuBr2?
    15·1 answer
  • every spring has an equilibrium position which statement describe a spring at it equilibruim position?
    12·1 answer
  • What is the energy of an electron in the first energy level of hydrogen?
    7·1 answer
  • How many grams are in 4 5 moles of sodium fluoride naf
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!