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
Gemiola [76]
3 years ago
11

What is formed from 2 pieces of different metals stuck together lengthwise?

Chemistry
1 answer:
avanturin [10]3 years ago
6 0
I believe you may be referring to cold welding? This is when two pieces of metal are put together in a vacuum and are thus permanently "cold-welded" together
You might be interested in
Mention one real life significance of the covalent bond.​
TEA [102]

Answer:

it helps in respiration

3 0
2 years ago
One of the reactions in a blast furnace used to reduce iron is shown above. How many grams of Fe2O3 are required to produce 15.5
Salsk061 [2.6K]

Answer : The correct option is, (b) 22.1 g

Solution : Given,

Mass of iron = 15.5 g

Molar mass of iron = 56 g/mole

Molar mass of Fe_2O_3 = 160 g/mole

First we have to calculate the moles of iron.

\text{Moles of Fe}=\frac{\text{Mass of Fe}}{\text{Molar mass of Fe}}=\frac{15.5g}{56g/mole}=0.276moles

Now we have to calculate the moles of Fe_2O_3.

The balanced reaction is,

Fe_2O_3+3CO\rightarrow 2Fe+3CO_2

From the balanced reaction, we conclude that

As, 2 moles of iron obtained from 1 mole of Fe_2O_3

So, 0.276 moles of iron obtained from \frac{0.276}{2}=0.138 mole of Fe_2O_3

Now we have to calculate the mass of Fe_2O_3

\text{Mass of }Fe_2O_3=\text{Moles of }Fe_2O_3\times \text{Molar mass of }Fe_2O_3

\text{Mass of }Fe_2O_3=(0.138mole)\times (160g/mole)=22.08g=22.1g

Therefore, the amount of Fe_2O_3 required are, 22.1 grams.

6 0
3 years ago
Which statement about chemical reaction rates is true?
aniked [119]

Answer:

C

Explanation:

gggggggggggggggggggggggggggggggg

gg

3 0
3 years ago
Read 2 more answers
A student mixes a solution containing 10.0 g bacl2 (m = 208.2) with a solution containing 10.0 g na2so4 (m = 142.1) and obtains
professor190 [17]
The balanced equation for the above reaction is as follows;
Na₂SO₄ + BaCl₂ --> BaSO₄ + 2NaCl
Na₂SO₄ reacts with BaCl₂ in the molar ratio 1:1
Number of Na₂SO₄ moles - 10.0 g / 142.1 g/mol = 0.0704 mol
Number of BaCl₂ moles - 10.0 g / 208.2 g/mol = 0.0480 mol
this means that 0.0480 mol of each reactant is used up, BaCl₂ is the limiting reactant and Na₂SO₄ has been provided in excess. 
stoichiometry of BaCl₂ to BaSO₄ is 1:1
number of BaSO₄ moles formed - 0.0480 mol
Mass of BaSO₄ - 0.0480 mol x 233.2 g/mol = 11.2 g
theoretical yield is 11.2 g but the actual yield is 12.0 g
the actual product maybe more than the theoretical yield of the product as the measured mass of the actual yield might contain impurities. 
percent yield - 12.0 g/ 11.2 g x 100% = 107% 
this is due to impurities present in the product or product could be wet.
4 0
3 years ago
How many liters of 3^He are present in 22 moles of gas?
Anna35 [415]
Look it up on goggle
8 0
3 years ago
Other questions:
  • Nicaragua experienced a drought in 1987 following warmer than average water temperatures in the eastern pacific. What likely cau
    5·1 answer
  • What is not a chemical property of an apple?
    10·2 answers
  • A single drop of soda contains how many atoms?
    10·1 answer
  • . If 12 oranges cost $36.00, what is the cost for 20 oranges?
    15·1 answer
  • Hydrocarbons having the same formula but variations in structure are called isomers.
    9·1 answer
  • In terms of shape and volume, how can a gas be defined ?
    14·1 answer
  • From the list below, choose which groups are part of the periodic table
    8·1 answer
  • A chemistry teacher is able to grade chemistry labs at a rate of 5 labs for every 3 minutes. They need to grade 165 labs how man
    10·1 answer
  • 6
    11·1 answer
  • How might the hydrosphere affect the biosphere?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!