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
GuDViN [60]
3 years ago
10

Susan needs to simplify the expression shown below what should be her first step

Chemistry
1 answer:
Digiron [165]3 years ago
5 0
Susan should follow PEMDAS,

Parentheses
Exponents
Multiplication
Division
Addition
Subtraction,

So, the first step should be, to solve the equation in the parentheses.

I hope this helps!
You might be interested in
PLZ HELLLLPPPP
coldgirl [10]

D. The nucleus is the control center of the cell


6 0
3 years ago
How many grams of P2Cl5 are produced if 2.00 moles of P reacts with an excess of Cl2?
Roman55 [17]

Answer:

m_{P_2Cl_5 }=239.2125gP_2Cl_5

Explanation:

Hello there!

In this case, according to the reaction:

4P+5Cl_2\rightarrow 2P_2Cl_5

Thus, since there is a 4:2 mole ratio of P to P2Cl5 and the molar mass of the later is 239.2125 g/mol, we obtain the following mass as the produced one:

m_{P_2Cl_5 }=2.00molP*\frac{2molP_2Cl_5}{4molP} *\frac{239.2125gP_2Cl_5 }{1molP_2Cl_5} \\\\m_{P_2Cl_5 }=239.2125gP_2Cl_5

Regards!

5 0
3 years ago
What kind of bonding is found in Fe2O3?​
Natasha2012 [34]

Answer:

Ionic

Explanation:

Any metal with a nonmetal is an ionic bond due to the transfer of electrons from one element to another.

5 0
3 years ago
Objects that can bew seen only under magnification
timofeeve [1]
The answer is (D) microscopic. You can remember this, because the name is very close to "microscope," an instrument used to greatly magnify and observe tiny organisms and objects.
4 0
3 years ago
The enthalpy change for converting 10.0 g of ice at -25.0 °C to water at 90.0 °C is __________ kJ. The specific heats of ice, wa
Nina [5.8K]
AH1 = m * c1 * AT1 calculate this for ice (-25C to 0C) AH2 = AHfus(1 mole)=6.01 kJ = 6010 J AH3 = m *c3 * AT3 calculat this for water (0C to 100C) AH4 = AHvap(1mole)=40.67 kJ = 40670 J AH5= m * c5 * AT5 calculate this for steam (100C to 125C) 
Sum ---- AH1+AH2+AH3+AH4+AH5 
Data m=18g (1mole water) 
c1=specific heat ice= 2.09 J/g K c3=specific heat water= 4.18 J/g K c5=specific heat steam= 1.84 J/g K 
AT = (Tend - Tinitial) as this is a difference between temperatures it doesn't matter the units Celsius or Kelvin. Kelvin (K)=Celsius (C)+273.15 
AT1 = 0C - (-25C)= 25C= 273.15K - 248.15K= 25K AT3= 100C - 0C = 100C= 100K AT5= 125C - 100C= 25C=25K
6 0
3 years ago
Other questions:
  • What is formed from 2 pieces of different metals stuck together lengthwise?
    11·1 answer
  • What is it when a cup of ice turns to water
    10·2 answers
  • Water could be made to boil lower than its normal boiling point of 100 degrees Celsius at 92 degrees Celsius by?
    11·1 answer
  • Water molecules have unique physical and chemical properties that enable them to perform important functions in living organisms
    13·1 answer
  • How are the periods, or horizontal rows, on a periodic table ordered from left to right? (2 points)
    14·2 answers
  • CAN SOMEONE HELP ME PLEASE . i have the definitions i just need help with examples
    12·1 answer
  • Method to find upthrust
    14·1 answer
  • Why are cells called the smallest functional unit of a living organism?
    13·2 answers
  • According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to
    13·2 answers
  • what additional reaction product would result if naoh was used as a base in this reaction instead of k2co3?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!