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
Gennadij [26K]
3 years ago
9

Which of the following statements BEST describes a compound?

Chemistry
1 answer:
Oliga [24]3 years ago
8 0

Answer:

A compond is made up of 2 or more elements that are both DIFFERENT so the answer is B.

Explanation:

You might be interested in
The enthalpy of neutralization for the reaction of a strong acid with a strong base is −56 kJ/mol of water produced. How much en
denis23 [38]

Answer:

mxmxmxmxmxmxmxnxnsjjsjsjsjs

kskskw

Explanation:

msmsjsjdjdj

make

wokskwkwkwkwjjejesjsjjsjwjwj

6 0
3 years ago
The normal boiling point of iodomethane, CH3I, is 42.43 8C, and its vapor pressure at 0.00 8C is 140. Torr. Calculate (a) the st
tigry1 [53]

Answer:

a=28600J; b=90.6 J/K; c=402 torr

Explanation:

(a) considering the data given

 Vapour pressure P1 =0  at Temperature T1 = 42.43˚C,

Vapour pressure P2 = 273.15 at Temperature T2= 315.58 K)

Using the Clausius-Clapeyron Equation

ln (P2/P1) = (ΔH/R)(1/T2 - 1/T1)

In 760/140 = ΔH/8.314 J/mol/K  × (1/315.58K -- 1/273.15K)

ΔH vap= +28.6 kJ/mol or 28600J

(b) using the Equation ΔG°=ΔH° - TΔS to solve forΔS.

Since ΔG at boiling point is zero,

ΔS =(ΔH°vap/Τb)

 ΔS = 28600 J/315.58 K

= 90.6 J/K

(c) using ln (P2/P1) = (ΔH/R)(1/T2 - 1/T1)

ln P298 K/1 atm =  28600 J/8.314 J/mol/K × (1/298.15K - 1/315.58K)

P298 K = 0.529 atm

                = 402 torr

8 0
3 years ago
Kimchi is traditional Korean food made by fermenting cabbage or other vegetables in a mixture of spices and salt. Kimchi origina
Yuki888 [10]

Answer:

C. Water passes into the salt solution, dehydrating bacterial cells and making them harmless.

Explanation:

The salt solution is hypertonic to the bacterial cells and as such, water molecules will move from the bacterial cells into the salt solution, dehydrating the cells and rendering them harmless.

Option A is also true but it is irrelevant to the question asked. Option B and D are wrong.

The correct option is C.

3 0
3 years ago
A wave with low energy will also have high frequencies and long wavelength. short wavelengths and high frequencies. low frequenc
ch4aika [34]
A wave with low energy will also have long wavelengths and low frequencies.

The given in a single photon of a wave is given by Planck's equation:
E = hc/λ
and
E = hf

Where λ is the wavelength and f is the frequency of the photon. This means that energy is directly proportional to the frequency and inversely proportional to the wavelength. Thus, it is visible that photons with a lower frequency and a longer wavelength will have a lower energy.
8 0
3 years ago
Read 2 more answers
The value of the rate constant for a gas phase reaction can be changed by increasing the A. temperature of the reaction vessel.
prohojiy [21]

Answer:

temperature of the reaction vessel

Explanation:

temperature of the reaction vessel

3 0
3 years ago
Other questions:
  • When the molecules of gases are heated, the average kinetic energy of the molecules increases,
    12·1 answer
  • A student mixes a spoonful of sugar into a glass of water and stirs until the sugar dissolves completely. Match each substance t
    15·1 answer
  • A bond formed by electrical attraction between two oppositely charged ions is called
    15·1 answer
  • Which expression represents a reaction rate?a. time/massc. energy/timeb. number/timed. time/energy
    12·2 answers
  • What is the atmospheres in order from earth
    9·1 answer
  • A 38.4−g sample of ethylene glycol, a car radiator coolant, loses 852 J of heat. What was the initial temperature of the ethylen
    12·1 answer
  • Facts about heat absorption<br>and simple questions about heat absorption with answer
    6·1 answer
  • 2
    13·1 answer
  • Which gases contribute more significantly to Global warming
    14·1 answer
  • Solid ammonium chloride, NH4Cl, is formed by the reaction of gaseous ammonia, NH3, and hydrogen chloride, HCl. NH3(g)+HCl(g)⟶NH4
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!