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
eduard
3 years ago
10

which of the following results when iron and oxygen react? 1.fe2o3 corrodes 2.hydrated iron forms 3.iron oxide forms 4.a shiny m

etal forms 5.o2 dissolves in water
Chemistry
1 answer:
weeeeeb [17]3 years ago
3 0
It should be 4, a shiny metal forms
You might be interested in
Please write balanced equations for these reactions! WILL GIVE BRAINLIEST! 50 POINTS
Romashka [77]

Answer:

(NH4)2S(aq) + Pb(NO3)2(aq) --> 2NH4NO3 (aq) + PbS (s)

3 0
3 years ago
Which is the first step to take to help reduce pollution
rjkz [21]

B. Gain information about the current state of the environment and ways to improve it.

6 0
3 years ago
Write the appropriate symbol for each of the following isotopes: (a) Z 11, A 23; (b) Z= 28, A= 64; (c) Z= 50, A =115; (d) Z= 20,
prohojiy [21]

Explanation:  

Z = atomic mass of the element and  , A = atomic mass of the element .

a) Z = 11, A =  23

Element = Sodium

  symbol: ²³₁₁Na  .

b) Z = 28, A =  64

Element = Nickel

  symbol: ⁶⁴₂₈Ni  .

c) Z = 50, A = 115

Element = tin

  symbol: ¹¹⁵₅₀Sn  .

d) Z = 20, A = 42

Element = Calcium

  symbol: ⁴²₂₀Ca .

6 0
3 years ago
Read 2 more answers
Yeast and other organisms can convert glucose (C6H12O6) to ethanol (CH3CH2OH) by a process called alchoholic fermentation. The n
NISA [10]

Answer:

8.37 grams

Explanation:

The balanced chemical equation is:

C₆H₁₂O₆     ⇒   2 C₂H₅OH (l) + 2 CO₂ (g)

Now we are asked to calculate the mass  of glucose required to produce 2.25 L CO₂ at 1atm and 295 K.

From the ideal gas law we can determine the number of moles that the 2.25 L represent.

From there we will use the stoichiometry of the reaction to determine the moles of glucose which knowing the molar mass can be converted to mass.

PV = nRT    ⇒ n = PV/RT

n= 1 atm x 2.25 L / ( 0.08205 Latm/kmol x 295 K ) =0.093 mol CO₂

Moles glucose required:

0.093 mol CO₂  x  ( 1 mol C₆H₁₂O₆   / 2 mol CO₂ ) =  0.046 mol C₆H₁₂O₆

The molar mass of glucose is 180.16 g/mol, then the mass required is

0.046 mol x 180.16 g/mol = 8.37 g

5 0
3 years ago
List two of the kingdoms found in the Eukarya domain
IrinaK [193]
Animalia and Plantae

Hope that helps
6 0
3 years ago
Other questions:
  • 1) The spectrum of lithium has a red line of 670.8 nanometers. (Remember 1 m = 1 X 109 nm) a. Convert the nanometer to meter usi
    7·1 answer
  • The pH scale for acidity is defined by pH=−log10[H⁺] where [H⁺]is the concentration of hydrogen ions measured in moles per liter
    5·1 answer
  • True/False 1,atoms combines to form element 2, a physical changes is a change in the composition of as substance 3, physical pro
    8·2 answers
  • Bright headlights show objects how far away
    6·2 answers
  • Which factors are needed to determine the amount of heat absorbed by an aluminum cube after it is warmed?
    5·1 answer
  • HZ is a weak acid. An aqueous solution of HZ is prepared by dissolving 0.020 mol of HZ in sufficient water to yield 1.0 L of sol
    13·1 answer
  • What type of bond is formed between sodium and iodine in sodium iodide (NaI)? A. ionic B. metallic C. polar covalent D. nonpolar
    8·1 answer
  • How many grams of Neon are there in a 346 mL container at 40.5°C and 842 torr?<br><br> With steps!
    8·1 answer
  • What is the resistance of a 150 W lightbulb connected to a 24 V voltage source?
    14·1 answer
  • Identify how energy changed form so it could be use in each example.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!