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
Sedaia [141]
2 years ago
13

I need help with this bill nye worksheet. someone help. It's due tomorrow cant mess my grade up. I just picked a random subject

but it's science.(7th grade)

Chemistry
1 answer:
viva [34]2 years ago
5 0

send a better picture please and thank you

You might be interested in
If you start with 227.8 grams of iron and 128 grams of oxygen to produce iron oxide, what is the limiting reagent?
agasfer [191]

The balanced chemical equation between iron and oxygen to produce iron (III) oxide is,

4Fe(s) + 3O_{2}(g) ---> 2Fe_{2}O_{3}(s)

Mass of Fe = 227.8 g

Moles of Fe = 227.8 g Fe * \frac{1 mol Fe}{55.85 g Fe} = 4.079 mol Fe

Mass of oxygen = 128 g

Moles of O_{2} = 128 g O_{2}*\frac{1 mol O_{2}}{32 g O_{2}}= 4mol O_{2}

Calculating the limiting reactant: The reactant that produces the least amount of product will be the limiting reactant.

Mass of iron (III) oxide produced from Iron = 4.079 mol Fe * \frac{2 mol Fe_{2}O_{3}}{4 mol Fe}  *\frac{159.69 g Fe_{2}O_{3}}{1 mol Fe_{2}O_{3}} = 325.7 g Fe_{2}O_{3}

Mass of iron (III) oxide produced from oxygen=4 mol O_{2}*\frac{2 molFe_{2}O_{3}}{3 mol O_{2}}*\frac{159.69 g Fe_{2}O_{3}}{1 mol Fe_{2}O_{3}} =  425.84 g Fe_{2}O_{3}

Iron (Fe) produces the least amount of the product iron (III) oxide. So, Fe is the limiting reactant.

7 0
3 years ago
As the randomness of a system increases, the entropy of the system:
aev [14]

Answer:

it most likely increases

6 0
3 years ago
How many grams of Sg is required to produce 83.10 g SF6? S: +24F-->8SF
ozzi

Answer : The mass of S_8 required is 18.238 grams.

Explanation : Given,

Mass of SF_6 = 83.10 g

Molar mass of SF_6 = 146 g/mole

Molar mass of S_8 = 256.52 g/mole

The balanced chemical reaction is,

S_8+24F_2\rightarrow 8SF_6

First we have to determine the moles of SF_6.

\text{Moles of }SF_6=\frac{\text{Mass of }SF_6}{\text{Molar mass of }SF_6}=\frac{83.10g}{146g/mole}=0.569moles

Now we have to determine the moles of S_8.

From the balanced chemical reaction we conclude that,

As, 8 moles of SF_6 produced from 1 mole of S_8

So, 0.569 moles of SF_6 produced from \frac{0.569}{8}=0.0711 mole of S_8

Now we have to determine the mass of S_8.

\text{Mass of }S_8=\text{Moles of }S_8\times \text{Molar mass of }S_8

\text{Mass of }S_8=(0.0711mole)\times (256.52g/mole)=18.238g

Therefore, the mass of S_8 required is 18.238 grams.

7 0
3 years ago
Classify each of the following as abiotic or biotic.
mars1129 [50]

Answer:

<h3>D. </h3>

Explanation:

<h3>#I'm not sure</h3><h3>#happy learning</h3>
7 0
2 years ago
Read 2 more answers
Which element has the lowest first ionization energy? (F), (Li), (Fr), (Rb)?
Mariulka [41]

Answer:

Fr

Explanation:

Francium (Fr) has the lowest ionization energy, with a value of 4.0727eV. This ionization energy increases as one advances in a period, being greater in the group of nonmetals.

6 0
3 years ago
Other questions:
  • When the skateboarder reaches the top of the half-pipe, what type of energy is at it's maximum?
    12·1 answer
  • What is the formula equation for the reaction between sulfuric acid and dissolved sodium hydroxide if all products and reactants
    14·2 answers
  • When exchanging information<br><br> with anyone involved in the<br><br> collision, you should
    13·1 answer
  • The parents of a young child carefully placed plastic plug protectors in all the electrical outlets in their house. Which statem
    14·2 answers
  • Hg + O2 --&gt; HgO reaction
    9·1 answer
  • Please help ASAP! What mass of hydrogen is needed to produce 10 moles of ammonia (NH3)?
    6·1 answer
  • Which best illustrates the way in which radiation transfers thermal energy?
    13·2 answers
  • What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?
    15·1 answer
  • Compare the temperature change for cold sand and cold water when the same amount of hot water was added. what do you discover?
    14·1 answer
  • A buffer is prepared by adding 150mL of 0.50 M NH3 to 250mL of 0.50 M NH4NO3. What is the pH of the final solution? (Kb for NH3
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!