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
mash [69]
3 years ago
10

HELPPP simply the expression!!!!

Chemistry
1 answer:
coldgirl [10]3 years ago
4 0

Answer:

\frac{3}{ \sqrt{3} }  \times  \frac{ \sqrt{3} }{ \sqrt{3} }  =  \frac{3 \sqrt{3} }{3}  =  \sqrt{3}

when there is a radical in the denominator, we should rationalize (mutiply the denominator and numerator by the radical) to get rid of the radical in the denominator.

You might be interested in
Substance
ipn [44]

Answer:

lithium 3

Explanation:

This is because lithium has three protons

6 0
3 years ago
3. Sodium carbonate (Na2CO3) is formed from the reaction between
user100 [1]

Na2C03 is formed through the reaction of

NaOH and H2CO3 namely sodium hydroxide and carbonic acid

NaOH -> strong base

H2CO3-> weak acid

8 0
3 years ago
Read 2 more answers
What is the answer to this^​
bogdanovich [222]

Your answer would be D.

8 0
3 years ago
Read 2 more answers
The aromatic hydrocarbon cymene (C10H14) is found in nearly 100 spices and fragrances, including coriander, anise, and thyme. Th
andrezito [222]

Answer : The thermal energy produced during the complete combustion of one mole of cymene is -7193 kJ/mole

Explanation :

First we have to calculate the heat released by the combustion.

q=c\times \Delta T

where,

q = heat released = ?

c = specific heat of calorimeter = 3.640kJ/^oC

\Delta T = change in temperature = 19.35^oC

Now put all the given values in the above formula, we get:

q=3.640kJ/^oC\times (19.35)^oC

q=70.43kJ

Thus, the heat released by the combustion = 70.43 kJ

Now we have to calculate the molar enthalpy combustion.

\Delta H=-\frac{q}{n}

where,

\Delta H = molar enthalpy combustion = ?

q = heat released = 70.43 kJ

n = number of moles cymene = \frac{\text{Mass of cymene}}{\text{Molar mass of cymene}}=\frac{1.608g}{164.22g/mol}=0.009792mole

\Delta H=-\frac{70.43kJ}{0.009792mole}=-7193kJ/mole

Therefore, the thermal energy produced during the complete combustion of one mole of cymene is -7193 kJ/mole

4 0
3 years ago
I need help with Question 6 (A,B,C)
LenKa [72]
I think the anwser is A but I'm not sure so I might need to get somebody else's opinion like i said I'm sorry if it's wrong
6 0
4 years ago
Other questions:
  • HELP PLEASE!!!! 15 POINTS!!! HELP!!
    13·2 answers
  • A student lifts a box of books that weighs 350 N. The box is lifted 4.0 m. How much work does the student do on the box?
    5·1 answer
  • A solution is prepared by diluting 50.00 ml of 2.575 m solution of hno3 to 250.0 ml. what is the molarity of the resulting solut
    13·2 answers
  • How did the metric system came to existence? (explain how it started until it is being implemented)
    7·1 answer
  • Properties of matter with three example each
    7·1 answer
  • A solution containing 75.0 mL of 0.150 M strong acid (HCl) is titrated with 75.0 mL of 0.300 M strong base (NaOH). What is the p
    12·1 answer
  • An organic compound was extracted into dichloromethane and then the aqueous layer is shaken with saturated sodium chloride solut
    10·1 answer
  • A quart is how many pounds
    6·2 answers
  • What is the molarity of 0.945 L of a solution that contains 0.227 moles of Fe(NO3)3?
    11·1 answer
  • How do matter and energy move through an ecosystem?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!