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
Vlada [557]
3 years ago
15

I dont feel like doing math in science HELPP

Chemistry
2 answers:
joja [24]3 years ago
7 0
7362.92 is the correct answer
Elodia [21]3 years ago
3 0
7362.92 is the answer
You might be interested in
How many liters of oxygen gas, at standard
Karo-lina-s [1.5K]

Answer:

Explanation:

  • For the balanced reaction:

<em>4Fe(s) + 3O₂(g) → 2Fe₂O₃(s)​.</em>

It is clear that 4 mol of Fe react with 3 mol of O₂ to produce 2 mol of Fe₂O₃.

  • Firstly, we need to calculate the no. of moles of 35.8 grams of Fe metal:

no. of moles of Fe = mass/molar mass = (35.8 g)/(55.845 g/mol) = 0.64 mol.

  • Now, we can find the no. of moles of O₂ is needed to react with the proposed amount of Fe:

<em><u>Using cross multiplication:</u></em>

4 mol of Fe is needed to react with → 3 mol of O₂, from stichiometry.

0.64 mol of Fe is needed to react with → ??? mol of O₂.

∴ The no. of moles of O₂ needed = (3 mol)(0.64 mol)/(4 mol) = 0.48 mol.

  • Finally, we can get the volume of oxygen using the information:

<em>It is known that 1 mole of any gas occupies 22.4 L at standard P and T (STP).</em>

<em></em>

<em><u>Using cross multiplication:</u></em>

1 mol of O₂ occupies → 22.4 L, at STP conditions.

0.48 mol of O₂ occupies → ??? L.

∴ The no. of liters of O₂ = (0.48 mol)(22.4 L)/(1 mol) = 10.752 L.

5 0
4 years ago
The compound gallium phosphide (Ga P) is a compound semiconductor having mixed ionic and covalent bonding. The electronegativiti
alexandr1967 [171]

Answer:  The fraction of the bonding that is ionic is 0.08875.

Explanation:

Percentage ionic character is calculated using the formula:

% ionic character =[16\times \Delta E_N + 3.5\times (\Delta E_N)^2]

Where, \Delta E_N = electronegativity difference

Given : The electronegativities for Ga and P are 1.6 and 2.1 respectively.

Thus \Delta E_N = electronegativity of phosphorous - electronegativity of galium = 2.1 -1.6 = 0.5

Therefore,

%ionic character  = [16\times 0.5 + 3.5\times (0.5)^2]=8.875

Fraction of ionic bond =\frac{8.875}{100}= 0.08875

The fraction of the bonding that is ionic is 0.08875.

5 0
3 years ago
Which statement best describes the domain and range of f(x) = -(7)X and g(x) = 7X7 O f(x) and g(x) have the same domain and the
Ivan

Answer:

The graph of this equation is shown in Figure 1. As you can see this is a straight line with negative slope and does not intersect the y-axis. So the ...

Explanation:

4 0
3 years ago
How many unpaired electrons are present in a ground-state atom from each of the following groups?
musickatia [10]

For 7A(17) :

Electronic configuration ns^2 np^5

So, there are 5 unpaired electrons present in group 7A(17).

<h3>What are Unpaired Electrons?</h3>
  • An unpaired electron is an electron that doesn't form part of an electron pair when it occupies an atom's orbital in chemistry.
  • Each of an atom's three atomic orbitals, designated by the quantum numbers n, l, and m, has the capacity to hold a pair of two electrons with opposing spins.
  • Unpaired electrons are extremely uncommon in chemistry because an object carrying an unpaired electron is typically quite reactive. This is because the production of electron pairs, whether in the form of a chemical bond or as a lone pair, is frequently energetically advantageous.
  • They play a crucial role in describing reaction pathways even though they normally only appear momentarily during a reaction on a thing called a radical in organic chemistry.

To learn more about unpaired electrons with the given link

brainly.com/question/14356000

#SPJ4

6 0
2 years ago
If both parents have on dominant gene and one recessive gene, what is the ratio of children
ahrayia [7]

Answer:

the child would have a 1 in 2 chances of having a dominant gene

Explanation:

Parent 1         Parent 2

d                     d

r                       r

child

d

d= dominant

r= recessive

6 0
3 years ago
Other questions:
  • Answer the following questions that relate to electrochemical reactions. (a) Under standard conditions at 25˚C, Zn(s) reacts wit
    13·2 answers
  • A 1.0-l buffer solution contains 0.100 mol hc2h3o2 and 0.100 mol nac2h3o2. the value of ka for hc2h3o2 is 1.8×10−5. calculate th
    6·3 answers
  • Which compound contains both sigma and pi bonds?
    10·1 answer
  • What happened to the average length of the potato cylinders (increased/decreased/remained the same) as the concentration of salt
    14·2 answers
  • Please choose the correct number (associated with the vocab word) from the drop down menu that matches the definition
    14·1 answer
  • What happens to the energy of gas particles when an elastic collision takes place?
    13·2 answers
  • Name the elements of 2:8:3​
    5·1 answer
  • Hi, I need help on the chemical names of the following two:
    15·1 answer
  • If such an ion is negatively charged and includes one or more oxygen atoms
    7·1 answer
  • Research the ecology of your region and find one species that is endangered. Find an estimate of the population of the species i
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!