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
nlexa [21]
3 years ago
6

In a human nose, the total area of the region that detects our odors is about ¾ in^2. Compare that to the sensory organ of a hun

ting dog, whose nose has an active area of about 65 cm^2.
Chemistry
1 answer:
viva [34]3 years ago
6 0

Let it be x

\\ \sf\longmapsto \dfrac{3}{4}x=65

\\ \sf\longmapsto x=65\times \dfrac{4}{3}

\\ \sf\longmapsto x=\dfrac{260}{3}

\\ \sf\longmapsto x\approx82

You might be interested in
The group that shows the effect of the variable being tested is called the
Mazyrski [523]
Dependent group (or variable) I believe
3 0
4 years ago
Read 2 more answers
If 22.5L of nitrogen at 748 mm Hg are compressed to 725 mm Hg at constant temperature. What is the new volume?2.A gas with a vol
kykrilka [37]

Answer:

a)23.2 L

b)68.3kPa

c)7.5 atm

d)60.5L

e)1.67 atm

Explanation:

From Boyle's law:

P1V1=P2V2

P1= 748mmHg

P2=725mmHg

V1= 22.5L

V2??

V2= P1V1/P2= 748×22.5/725= 23.2 L

b)

V1=4.0L

P1= 205×10^3Pa

V2= 12.0L

P2=???

P2= P1V1/V2= 205×10^3×4/12

P2= 68.3×10^3 Pa or 68.3kPa

c)

P1= 1 atm

V1= 196.0L

P2= ??

V2= 26.0L

P2= P1V1/V2=1×196.0/26.0

P2= 7.5 atm

d)

V1= 40.0L

P1= 12.7×10^3Pa

V2=???

P2= 8.4×103Pa

V2= P1V1/P2= 12.7×10^3×40.0/8.4×103

V2=60.5L

e)

V1= 100mL

P1= 1atm

V2= 60mL

P2=???

P2= P1V1/V2= 1×100/60

P2= 1.67 atm

4 0
4 years ago
Organic foods do not contain chemicals.<br><br> True<br> False
jeka57 [31]
True because they are organically made without any things that include chemicals
6 0
3 years ago
Calculate the freezing point of a solution that contains 8.0 g of sucrose (C12H22O11) in 100 g of H2O. Kf for H2O = 1.86C/m
Aleks04 [339]

The freezing point of the sucrose solution is -0.435°C.

<h3>What is the freezing point of the solution?</h3>

The freezing point of the solution is determined from the freezing point depression formula below:

  • ΔT = mKf(H₂O)

Kf(H₂O) = 1.86 Cm

m is molality of solution = moles of solute/mass of solvent

moles of sucrose = 8.0/342.3 = 0.0233 moles

m = 0.0233/0.1 = 0.233 molal

ΔT = 0.233 m * 1.86°C/m.

ΔT = 0.435 °C.

Freezing point of sucrose solution = 0°C - 0.435°C

Freezing point of sucrose solution  = -0.435°C.

In conclusion, the freezing point of sucrose solution is determined from the freezing point depression.

Learn more about freezing point depression at: brainly.com/question/19340523

#SPJ1

8 0
2 years ago
Plz help me : 4.lodine, (two iodine atoms bonded together) is made up of:
uranmaximum [27]

Answer:

all non metals

Explanation:

iodine is a non metal, and if a metal had bonded with it, it would he considered a metal and non metal. But since two iodine atoms are bonded together, they are both non metals ( I2)

7 0
3 years ago
Other questions:
  • Compound W, C6H11Cl, undergoes base-promoted E2 elimination to form a single alkene Y. Under similar reaction conditions X, C6H1
    12·1 answer
  • Chemical reactions can be detected by changes in_____. Select all that apply. temperature color overall mass of the products com
    11·2 answers
  • If an atom contains 12 protons and 10 neutrons, what's its mass number?
    8·2 answers
  • Is vinegar a mixture or a pure substance?
    7·1 answer
  • If the equilibrium constant of the reaction is 0.85, then which statement is true if the mass of A is 10.5 grams; the density of
    7·1 answer
  • Why is it necessary to determine if a reactant is a limiting reagent in a reaction
    5·1 answer
  • What is the ground-state electron configuration of a neutral atom of cobalt? express your answer in condensed form, in order of
    8·1 answer
  • 10. For each of the following pairs of ionic compounds, state which would be expected to have the higher (more negative) lattice
    14·1 answer
  • You have a balloon filled with hellum that has a volume of 4.91 cubic decimeters
    7·2 answers
  • Formula for dinitrogen monoxide
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!