CHEMISTRY HIGH SCHOOL

hat is the relationship between the vapor pressure of a liquid and the measured pressure of the gas above the liquid at a given temperature in a closed system?

Answers

Answer 1
Answer:

Answer:

In a closed system the vapor pressure and the measured pressure of a gas increases.

Explanation:

as the pressure of the liquid increases the measured pressures also increases  with a given temperature.

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What volume, in Liters, of a 2.00 M KCl solution contains 2.5kg of KCl? Molar mass of KCl= 74.55g/mole
Carbon disulfide (CS2) undergoes a single displacement reaction with O2 to form CO2. If 100 grams of CS2 reacts with 38 grams of O2, what will the limiting reagent be?CS2 + O2 CO2 + 2S
20 Which term is defined as a measure of the disorder of a system?(1) heat (3) kinetic energy (2) entropy (4) activation energy
Lewis Structure of HOClO
Drawing a conclusion derived from knowledge of an established principle is called deductive reasoning.True or false?

How many neutrons are in an atom of 187 Re

Answers

Answer: I believe the answer is 112.

Explanation:

NEED HELP ASAP PLEASEWhich of these compounds is covalently bonded?
Select one:
a. KF
b. MgF2
c. NO2
d. Na2S

Answers

C. NO2 is covalent. Hope this helps!

The cell theory teaches that _____.the basic unit of life is the organism
the basic unit of life is the cell
all cells have the same basic structure
cells are miniature reflections of the organisms from which they are taken

Answers

The cell theory teaches that :

the basic unit of life is the cell
Explanation:

In biology, a scientific theory is that the historical theory, currently universally accepted, that living organisms square measure created from cells, that they're the fundamental structural/organizational unit of all organisms, which all cells come back from pre-existing cells. Cells square measure the fundamental unit of structure all told organisms and conjointly the fundamental unit of the replica.

Answer:

the basic unit of life is the cell

What is the main pigement for photosyenthesis inchloroplasts

Answers

I assume the answer is chlorophyll (a or b) but could also be carotenoids.

Answer:

the main pigment is chlorophyll.

Explanation:

It is green

Pick the answer that most likely represents the substances’ relative solubilities in water.(A) CH₃CH₂CH₂CH₃ < CH₃CH₂CH₂OH < HOCH₂CH₂OH
(B) CH₃CH₂CH₂OH < CH₃CH₂CH₂CH₃ < HOCH₂CH₂OH
(C) CH₃CH₂CH₂CH₃ < HOCH₂CH₂OH < CH₃CH₂CH₂OH
(D) HOCH₂CH₂OH < CH₃CH₂CH₂OH < CH₃CH₂CH₂CH₃
(E) HOCH₂CH₂OH < CH₃CH₂CH₂OH < CH₃CH₂CH₂CH₃

Answers

the naswer should be A

Answer:

83

Explanation:

eighty-three

What is kinetic energy? A. the energy an object has due to its motion B. the energy derived from chemical reactions C. the energy an object has due to its position D. the energy an object releases as heat

Answers

Answer: Option (a) is correct.

Explanation:

When an object moves from its initial position, it acquires some energy. This energy is called kinetic energy, as it is governed by the motion of an object.

The formula to calculate kinetic energy is as follows.

                   kinetic energy = \frac {1}{2}mv^(2)

where,    

            m = mass of object

            v = velocity of object

Thus, it is concluded that kinetic energy is the energy an object has due to its motion.

The energy an object possesses due to its motion.
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________, such as HCl(aq), produce hydrogen ions when dissolved in water. A) Arrhenius acids B) Arrhenius bases C) Brønsted-Lowry bases D) Brønsted-Lowry acids
Explain why substances with simple molecular structures are gases or liquids, or solids with low melting and boiling points . The term intermolecular forces of attraction can be used to represent all forces between molecules ?