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
GalinKa [24]
3 years ago
12

Which type of reaction occurs in the following? 2HgO(s) mc014-1.jpg 2Hg(l) + O2(g) a decomposition reaction in which a metal is

reduced an acid-base neutralization reaction to produce oxygen gas a displacement reaction involving two metals a combustion reaction involving burning a metal in oxygen
Chemistry
2 answers:
Nuetrik [128]3 years ago
7 0

Answer;

A decomposition reaction in which a metal is reduced

Explanation;

A decomposition reaction occurs when one reactant breaks down into two or more products.This can be represented by the general equation: AB → A + B. Examples of decomposition reactions include the breakdown of hydrogen peroxide to water and oxygen, and the breakdown of water to hydrogen and oxygen.

During this reaction mercury oxide decomposes into mercury and oxygen. Mercury(II) oxide, a red solid, decomposes when heated to produce mercury and oxygen gas.

Alex777 [14]3 years ago
3 0
<span> its a 
reaction of decomposationin which metal is reduced.
</span>
You might be interested in
10 atoms of aluminum reacts with 6 molecules of oxygen gas to produce aluminum oxide. 4 Al + 3 O2 ––&gt; 2 Al2O3 What is the exc
Mrrafil [7]

The excess reactant is Aluminum.

<u>Explanation:</u>

We have to write the balanced equation as,

4 Al+ 3 O₂ → 2 Al₂O₃

According to the molar ratio 4: 3, from the given balanced equation, we can say that 4 atoms of Al reacted with 3 molecules of oxygen.

Given that 10 atoms of aluminum reacts with 6 molecules of oxygen, as per the ratio only 8 atoms of Aluminum is required to react with 6 molecules of oxygen, so excess reactant is Aluminum.

8 0
3 years ago
What do atom, molecules, and elements have in common
____ [38]

Answer:

Solids, liquids, gases - all matter - are made up of atoms (or other things, like molecules, that are made from atoms)! ELEMENTS are the kinds of atoms that we can have. Carbon is an element, hydrogen is an element, and so is oxygen. ... Atoms can join together - they form bonds together - to make MOLECULES.

6 0
2 years ago
Brainliest if answered correctly <br>How many Calcium (CA) atoms are in carbon tetrachloride​
Lady_Fox [76]

Answer:

What atoms are present in carbon tetrachloride?

There is 1 carbon, and 4 chlorine atoms (or chloride ions if you want to get technical). Tetra means 4 in Greek.

hope that helps❤

4 0
2 years ago
Read 2 more answers
How many hydrogen moles are in 2.5 moles of aspartame c14h18n2o5
STALIN [3.7K]
Firstly, we need to convert 3g aspartame into moles aspartame. In order to do this we have to find the molecular mass of aspartame (the total weight of each atom of the molecule combined. This figure can be used to construct a conversion factor so that the grams may be converted into moles. Molecular weights for each atom can be found on any periodic table. Avagadro's number (6.022*10^23) is a constant value that expresses the number of molecules in one mole of a substance. 

The molecular weight for aspartame is 294.3 grams per mole. 

The process of finding how many atoms of H there are in 3.00g of aspartame would be like this: 

1. 3g * 1mol/294.3g = .01mol aspartame (this is converting grams to moles) 

2. .01mol * 6.022*10^23 = 6.022*10^21 (This is finding the number of molecules) 

3. (6.022*10^21) * 18 = 1.08*10^23 

This 3rd calculation is done because in part 2, you calculated the number of molecules of aspartame there were in 3g. In each molecule of aspartame there are 18 hydrogen atoms. So the final answer is: 
1.08*10^23 hydrogen atoms.
3 0
2 years ago
A 15.5 g piece of chromium, heated to 100.0 degrees Celsius, is dropped into 55.5 g of water at 16.5 degrees Celsius. The final
elixir [45]

Answer: The specific heat capacity of chromium is 2010J/g^0C

Explanation:

heat_{absorbed}=heat_{released}

As we know that,  

Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})

m_1\times c_1\times (T_{final}-T_1)=-[m_2\times c_2\times (T_{final}-T_2)]         .................(1)

where,

q = heat absorbed or released

m_1 = mass of chromium = 15.5 g

m_2 = mass of water = 55.5 g

T_{final} = final temperature =18.9^0C

T_1 = temperature of chromium = 100^oC

T_2 = temperature of water = 16.50^oC

c_1 = specific heat of chromium= ?

c_2 = specific heat of water= 4.184J/g^0C

Now put all the given values in equation (1), we get

-15.5\times c_1\times (19.5-18.9)=[55.5\times 4.184\times (19.5-100)]

c_1=2010J/g^0C

The specific heat capacity of chromium is 2010J/g^0C

6 0
2 years ago
Other questions:
  • PLEASE HELPP ASAP!!!!!What is the equation for density A. D=M/V B. D=V/M C. D= M/V2 D. D=1/2 MV2
    7·1 answer
  • How many grams of kbr must be dissolved to make 25.0 ml of a solution that has a molarity of 0.85 m?
    6·1 answer
  • What gases occur in the same percentages throughout the layers of the atmosphere?
    9·1 answer
  • Explain the ability of water to​
    13·1 answer
  • Trình bày sự hình thành phân tử CCl4 (lai hoá sp3)
    13·1 answer
  • Hi! My responsibility is to add and protection to plant cells. what i am​
    12·1 answer
  • Why would a scientist want to replicate another scientist's experiment?
    14·1 answer
  • The period of time needed for a radioisotope to lose one-half of its activity is known as that isotopes
    11·1 answer
  • A gamma ray has a frequency of 2.88 x 1021 Hz. What does this mean?
    11·1 answer
  • In each pair, choose the larger of the indicated quantities or state that the samples are equal:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!