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
Temka [501]
3 years ago
15

Which expression is equivalent to 6m + (m - 2)(m + 7) + 3?

Chemistry
1 answer:
dedylja [7]3 years ago
8 0
It’s is m2 +11m-11
I believe that’s right
You might be interested in
A body-centered cubic unit cell has an edge length of 588 pm. What is the radius of the atoms composing the unit cell?
blagie [28]

Answer:

hi follow me it well help

5 0
3 years ago
1.
aleksklad [387]
1.c.) vegetarian and sediment build up in the bottom hope that work's✌


3.<span>D. Since in an uplift the water descending will go even faster making it crush on the rocks with more force and more friction increasing the rate of erosion.... Helped ? :) </span>

<span>And it's true since more water makes it faster and increase in land covering

thus taking more to the sea bed :x erosion


5.</span><span>Winter – Due to an increase in snowfall
</span><span>
8.</span><span>A perched water table is normally insufficient for the purpose of supplying domestic groundwater requirements and generally runs dry after it has been drilled. If a perched water table intersects a surface that has a slope, it can be manifested by seeps or springs along this line of intersection. The slope of a water table is in general proportional to the slope of the overlying land surface.



</span>13.<span>The oil could leak into your neighbors’ yards and kill the grass roots.
</span><span>






14.
</span><span>Energy needed
</span>
phew im done :)

5 0
4 years ago
Read 2 more answers
Find the number of moles of water that can be formed if you have 230 mol of hydrogen gas and 110 mol of oxygen gas
Verdich [7]

Answer:

220mol.

Explanation:

Water is H2O. Hydrogen gas is H2. Oxygen gas is O2. You have 220mol of O and 460mol of H. O is the limiting reactant. The ratio O:H2O is 1:1. 220*1=220

3 0
3 years ago
1 Rajah 1 menunjukkan satu contoh mikroorganisma. Diagram 1 shows an example of microorganisms. 0 Rajah 1 / Diagram I Antara yan
docker41 [41]

Answer:

d. Bacteria is the correct classification

3 0
3 years ago
Nitrogen and hydrogen combine to form ammonia in the Haber process. Calculate (in kJ) the standard enthalpy change ∆H° for the r
Kazeer [188]

Answer:

∆H° rxn = - 93 kJ

Explanation:

Recall that a change in standard in enthalpy, ∆H°, can be calculated from the inventory of the energies, H, of the bonds  broken minus bonds formed (H according to Hess Law.

We need to find in an appropiate reference table the bond energies for all the species in the reactions and then compute the result.

              N₂ (g)   +            3H₂ (g)   ⇒                          2NH₃ (g)

1 N≡N = 1(945 kJ/mol)     3 H-H = 3 (432 kJ/mol)       6 N-H = 6 ( 389 kJ/mol)

∆H° rxn = ∑  H bonds broken  - ∑ H bonds formed

∆H° rxn = [ 1(945 kJ)   + 3 (432 kJ) ] - [ 6 (389 k J]

∆H° rxn = 2,241 kJ -2334 kJ = -93 kJ

be careful when reading values from the reference table since you will find listed N-N bond energy (single bond), but we have instead a triple bond,  N≡N,  we have to use this one .

8 0
3 years ago
Other questions:
  • Why is density considered a physical property rather than a chemical property of matter?
    6·1 answer
  • What is the wavelength of radiation with a frequency of 6.24 x 10 Hertz?
    6·1 answer
  • Which statement is true about the elements present in a pure substance?
    12·2 answers
  • The average American uses 156 gallons of water every day. If you lived in Africa you would have to walk to collect this water an
    12·1 answer
  • If you are involved in a vehicle accident, you should not drink any alcohol up to ___ hours after the accident or you could be l
    7·1 answer
  • Why is combustion an important reaction in the atmosphere?
    5·2 answers
  • An object that has 0 acceleration will NEVER be in motio<br> TRUE<br> FALSE<br> Check it
    10·2 answers
  • The mass of a dust particle would be measured in?
    8·1 answer
  • Name three instructions that DNA provides to a cell
    11·2 answers
  • The electron configuration of an element is 1s22s22p63s1. Describe what most likely happens when an atom of this element comes n
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!