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
AlekseyPX
3 years ago
14

An iron fence is left on painted and it reacts with the oxygen in the air form forming rust. the formation of the rest is an oxi

dation-reduction reaction but it is also an example of a _____ reaction (1 point)
8. cooking requires continuous addition of energy to the chemical reactions the are taking place the chemical reaction involved in cooking can be described as______? (1 point)
9. measuring how quickly a reactanat disappears in one way to measure the ______of the reaction
Chemistry
2 answers:
nekit [7.7K]3 years ago
7 0
<span>it's synthesis, from a source

</span>
Alenkinab [10]3 years ago
3 0
<span>An iron fence is left on painted and it reacts with the oxygen in the air form forming rust. the formation of the rest is an oxidation-reduction reaction but it is also an example of a double-displacement reaction. 

</span><span>cooking requires continuous addition of energy to the chemical reactions the are taking place the chemical reaction involved in cooking can be described as a chemical change.

</span><span>measuring how quickly a reactanat disappears in one way to measure the rate of the reaction</span>
You might be interested in
What is the bond polarity of So2?
Bumek [7]

Answer:

covalent bonding

Type of Bonding: Sulfur Dioxide is a process of covalent bonding, since Sulfur and Oxygen are both non-metals. The Sulfur is in the center surrounded by 2 Oxygen atoms.

4 0
4 years ago
A 0.4657 g sample of a pure soluble bromide compound is dissolved in water, and all of the bromide ion is precipitated as AgBr b
Yanka [14]

Answer:

The mass percentage of bromine in the original compound is 81,12%

Explanation:

<u>Step 1: Calculate moles AgBr</u>

moles AgBr = mass AgBr / molar mass  AgBr

= 0.8878 g / 187.77 g/mol

= 0.00472812 moles AgBr

⇒

Since 1 mol AgBr contains 1 mol Br-

Then the amount of moles Br- in the original sample must also have  been 0.00472812 moles

<u>Step 2:</u> Calculating mass Br-

mass Br- = molar mass Br x moles  Br-

= 79.904 g/mol x 0.00472812 mol

= 0.377796 g Br-

⇒

There were 0.377796 g Br- in the original sample

<u>Step 3:</u> Calculating mass percentage Br-

⇒mass percentage  = actual mass Br- / total mass x 100%

% mass Br = 0.377796 g / 0.4657 g x 100  %

= 81.12%

7 0
3 years ago
THE CONSTANT MOVING OF AND HELP THE TEMPERATURES AROUND THE EARTH REMAIN ABOUT THE SAME AVERAGE
nika2105 [10]

New analysis through 2014 shows that temperature is once again rising at about the same pace as it did over the second half of the 20 th century. PRESS RELEASE. Using the data that were available at the time (through 2012), the last climate report from the Intergovernmental Panel on Climate Change concluded that there had been no statistically significant increase in global surface temperature

(I hope this helps you!)

8 0
4 years ago
2H2 + O2 2H2O
Licemer1 [7]

Answer:

c ) 8

Explanation:

Given data:

Number of moles of water produced = ?

Moles of hydrogen react = 8 mol

Solution:

Chemical equation:

2H₂ + O₂     →     2H₂O

Now we will compare the moles of hydrogen and water.

         H₂          :         H₂O

          2          :            2

         8           :           8

Thus, 8 moles of water will produced.

5 0
3 years ago
Will give brainliest! Plz help me plzzz
GrogVix [38]

Answer:

bro i think it is D, but I am not shure

4 0
3 years ago
Other questions:
  • What are some properties of matter that can be identified without testing or measuring
    14·1 answer
  • Protons have about the same mass as
    5·2 answers
  • Place the following compounds in order of increasing strength of intermolecular forces.
    6·1 answer
  • Peptides can be separated using an ion‑exchange column based on their isoelectric (pI) values. At which pH values would two diff
    11·1 answer
  • A container of carbon dioxide has a volume of 240 mL at a temperature of 22°C. If the pressure remains constant, what is the vol
    12·1 answer
  • How can line spectra be used to evaluate what elements are in an unknown sample?
    7·1 answer
  • Which of the following are pure elements
    11·1 answer
  • 827e7363726e63672727 <br><br><br>hmu <br><br><br><br>:]​
    12·2 answers
  • Why is it important to blow out the flame before the methanol is completely consumed?
    6·1 answer
  • What is the solubility of KCI?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!