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Answer 1

sorry i know this:

4. 2 methyl 2 heptene


Related Questions

What is the pressure in a 8.00 L tank with 50.5 grams of chlorine gas at 365 K?

Answers

The pressure in a 8.00 L tank with 50.5 grams of chlorine gas at 365 K is 2.67atm.

How to calculate pressure?

The pressure of a given mass of gas can be calculated using the following formula:

PV = nRT

Where;

P = pressureV = volumeT = temperaturen = no of molesR = gas law constant

The number of moles in 50.5g of Chlorine gas is as follows:

moles = 50.5/70.91

moles = 0.71mol

P × 8 = 0.71 × 0.0821 × 365

8P = 21..34

P = 21.34/8

P = 2.67atm

Therefore, the pressure in a 8.00 L tank with 50.5 grams of chlorine gas at 365 K is 2.67atm.

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The buffer that is adjusted to control acid-base balance is ________. plasma protein hemoglobin phosphate buffer bicarbonate: carbonic acid buffer

Answers

The buffer that is adjusted to control acid-base balance is referred to as a bicarbonate buffer.

What is a Buffer?

This consists of a weak acid and its conjugate base, or vice versa and resist changes in the pH of the solution.

The bicarbonate buffer is involved in acid-base homeostasis by removing CO2 and hydrogen ions, respectively, from the body.

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Write down the structural formula for the monomer from which
polyvinyl chloride is derived.
(2)
Give the name of the monomer.

Answers

Answer:

Vinyl chloride is an organochloride with the formula H2C=CHCl that is also called vinyl chloride monomer (VCM) or chloroethene. This colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride (PVC).

Explanation:

Answer:

CH2=CHCl

Explanation:

How many grams are in 2.3 moles of N?

Answers

The amount of grams that are in 2.3 moles of N = 32.223 or 32/100
Because there are 14.01 grams per mile of nitrogen atoms.
So…
14.01 x 2.3= 32.223
Hope this helps :)

Answer:

Therefore, 40.4 grams are contained in 2 moles of Neon.

1. explain how u would test the presence of oxygen and hydrogen gases

2. explain how u can get the most accurate reading in titration

3. why is scientific method important in chemistry? state your opinion

4. you are given a bucket of ice cubes, a little sugar, a measuring cylinder and a stopwatch.Plan a experiment to determine whetther sugar increases the melting rate of ice

Answers

Hi

sorry

i don’t know but maybe next time

PLEASEE HELPPP
what is the ph of 1.0 times 10^-2 M HBr

Answers

Answer:

The pH of a solution with the [H + ] = 1 × 10 -2 M is 2 and the pH of a solution with the [H + ] = 1 × 10 -10 M is 10. ( I think this is correct ).

Explanation:

What type of probes physically land on the surface of a planet or moon?

Answers

Answer:

Here are three types of probes that land on space physically. Interplantery, orbiters, and landers.

Explanation:

These are the ones that collect data and other stuff from space.

Which is the best definition of rate-determining step?

a) an elementary step that often occurs in the reaction mechanism

b) the elementary step that limits how fast the overall reaction proceeds

c) an elementary step that is used to derive a rate law

d) the unimolecular step in a reaction mechanism

Answers

Answer:

The correct answer is B. Give me Brainliest

HELP ANYONE PLEASE ASAP TYY!!!

Answers

In ecosystems, matter and energy are transferred from one form to another. Matter refers to all of the living and nonliving things in that environment. Nutrients and living matter are passed from producers to consumers, then broken down by decomposers. Decomposers break down dead plant and animal matter.

i hope this helps :)

giving brainliest please help!

Answers

It should be a because the molarity of the hydrochloric acid is less.

As the pressure on a given sample of a gas increases at constant temperature, the mass of the sample.

Answers

Should remain the same, the volume will decrease.

9. A 2.00 L flask is filled with propane gas (CH) at a pressure of 1.00 atm and a
temperature of -15.0°C. What is the mass of the propane in the flask?

Answers

the correct amswer is 4.17g

The partial pressure of carbon dioxide is greatest in:.

Answers

Answer:

Partial pressure of carbon dioxide is high in the pulmonary capillaries.

Explanation:

1. Define the unit 'mole'

Answers

Answer:

Below

Explanation:

The mole, symbol mol, is the SI base unit of amount of substance. The quantity amount of substance is a measure of how many elementary entities of a given substance are in an object or sample

please help
Which of the following diagrams shows how osmosis would affect a plant cell when placed in a solution with a lower solute concentration than its own?


A.
Diagram Y
B.
Osmosis is not dependent on solute concentration.
C.
Diagram Z
D.
Diagram X

Answers

Answer:

Diagram Z

Explanation:

A cell placed into a hypotonic solution will swell and expand until it eventually burst through a process known as cytolysis.

Answer:

Diagram Y

Explanation:

Osmosis is the passive movement of water molecules across (into or out of) a cell membrane. "Passive" means that the process occurs automatically without the need for chemical energy.

In the diagrams above, a plant cell is shown as it would appear in a solution with a solute concentration more than its own (X), a solution with a solute concentration equal to its own (Y), and a solution with a solute concentration less than it own (Z). The movement of water is toward the area of more solute concentration (and therefore less water concentration).

The answer, then, is Diagram Y.

(Trust me, I just did it)

What is Solution Concentration with examples​

Answers

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Solution Concentration or the concentration of the solution.The amount of solute dissolved in a particular amount of the solvent is a crucial parameter and is called Solution Concentration

EXAMPLE →

if you add one teaspoon to two cups of water, the concentration could be reported as 1 t salt per 2 c water.

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how do you find the oxidation numbers for H3PO4

Answers

The oxidation number of this atom is probably +5, but it really depends on the reaction. Could you send me the picture of the reaction? Then I can help you further :)

PLEASE HELP ASAP
What does it mean that the collisions between gas particles are elastic?

Answers

Answer:

There is no net loss of energy from the collisions.

Explanation:

Gas particles are constantly colliding with each other and the walls of their container. These collisions are elastic; that is, there is no net loss of energy from the collisions. Gas particles are small and the total volume occupied by gas molecules is negligible relative to the total volume of their container.

It means that there is no net loss of energy from the collisions. An elastic collision is one in which there is no overall loss of kinetic energy.

Geysers are formed when groundwater is heated by nearby magma. Please select the best answer from the choices provided T F

Answers

Geysers result from the heating of groundwater by shallow bodies of magma. So this is true.
This answer would be true

In 1–2 sentences, explain what biome comprises most of Antarctica and why the continent is described as being part of this biome.
please answer in own words thank you
and i give brainlist

Answers

The biome which comprises most of Antarctica is the cold desert or polar desert.

What is a Biome?

This is defined as an area which is classified according to the species that live there.

The climate of Antarctica is very cold  with very little life forms which is why it is referred to as a cold desert or polar desert.

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In the case of pathogen infections, chronic inflammation indicates

that the host does not have functional defense mechanisms.

that the host is fighting a lengthy battle against the pathogen.

that the pathogen has become an established part of the host's resident microbiota.

that the pathogen infection has been effectively overcome by the host.

Answers

Answer:

The answer is that the pathogen has become an established part of the host's resident microbiota. :)

Have an amazing day!!

Please rate and mark brainliest!!

Please helpI need help please show work!!

Answers

Answer:

≈32°C

Explanation:

1) the rule:

[tex]\frac{pV}{T}=const;[/tex]

2) according to the rule above the final temperature can be calculated as:

[tex]t_{final}=\frac{p_{init}}{p_{final}}*t_{init}; \ = > \ t_{final}=\frac{100}{300}*95=32.[/tex]

According to the Gay-Lussac's law, as volume is constant the temperature must be decreased to 31.6°C.

What is Gay-Lussac's law?

Gay-Lussac's law is defined as a gas law which states that the pressure which is exerted by the gas directly varies with its temperature and at a constant volume.The law was proposed by Joseph Gay-Lussac in the year 1808.

The pressure of the gas at constant volume reduces constantly as it is cooled till it undergoes condensation .The law is given by the formula, V₁/T₁=V₂/T₂, which on substitution gives T₂=95×100/300=31.6 °C.The container in Gay-Lussac's law is considered to be rigid  in contrast to the container present in Charle's law.

Thus, as per  Gay-Lussac's law, as volume is constant the temperature must be decreased to 31.6°C.

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The pressure of a gas sample at 60.0 °C is decreased from 3.40 atm to 2.60 atm by cooling at a constant volume. What is the temperature (in °C) of the gas at 2.60 atm?

Answers

When the pressure of a gas is decreased from 3.40 atm to 2.60 atm, the temperature of the gas will decrease from 60.0 degree celsius to 45.88 degree celsius.

What is Gay-Lussac law?

Gay -Lussac law states that the pressure and temperature is in direct proportions. Thus, pressure increases with an increase in temperature. The relation can be mathematically expressed as follows:

P/T = a constant. Hence,

P1/T1 = P2/T2

The initial pressure of the sample is given, 3.46 atm and the initial temperature is 60 °C. The final temperature of the gas when gas the expand to the lower pressure of 2.60 atm is calculated as follows:

[tex]T_{2} = \frac{P_{2}T_{1}}{P_{1}}[/tex]

    = (60 °C× 2.60 atm) / 3.40 atm

    = 45.88 °C.

Hence, the final temperature of the gas which is expanded from the pressure of 3.40 atm to 2.60 atm with an initial temperature of 60 °C is  45.88  °C.

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In one to two sentences, describe characteristics of a high-pressure system.
i give brainlist
pls answer in your own words

Answers

Answer:

A high pressure area is an area where the air sinks. As it does, it warms up by the adiabatic effect of a greater pressure and that causes the clouds to evaporate, giving place to a clear sky

Explanation:

A high-stress area, high, or anticyclone, is a location in which the atmospheric stress on the surface of the planet is more than its surrounding environment.

What are the traits of the high-pressure system?

In a high-Pressure system, it has better pressure in its center than in the regions around it. Winds blow away from excessive pressure.

Swirling withinside the contrary route from a low-stress system, the winds of an excessive pressure system rotates clockwise north of the equator and counterclockwise south of the equator.

Hence, these are the characteristics of high-pressure system.

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What is the function of the outer covering of a plant? a plant's outer covering is involved in reproduction. a plant's outer covering helps reduce water loss. a plant's outer covering is for preying on other plants. a plant does not have an outer covering.

Answers

Answer:

i dont know but good luck beacuse im doing the test and im stuck ngl

Explanation:

Answer:

B

Explanation:

What is the molarity of NaCl when 5.0 moles of NaCl is dissolved in 2.0 L solution

Answers

Answer:

Molarity having mol/L that is moles of solute in per liters of solution.

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Explanation:

substituted and expected value in the above education molarity equal to 0.5 mole by 2.0

A sample of no2 occupies 16,500 ml at stp. How many no2 molecules are in the sample?.

Answers

here it is! mL to Liters to moles to molecules

According to Avogadro's law equal volume of all gases at the same temperature and pressure contain equal number of molecules. At STP one mole of any gas behaving ideally occupies a volume of 22.414 L.

What is molar volume?

The volume occupied by one mole of a substance at a given temperature and pressure is defined as the molar volume at that temperature and pressure. The value of molar volume of an ideal gas at STP is important in stoichiometric calculations.

At STP, the number of molecules of a gas is given as:

Number of molecules of a gas (N) = V₀ in L /  22.414 × 6.022 × 10²³

Here  V₀ in L = 16500 = 16.5 L

N =  16.5 / 22.414  × 6.022 × 10²³

N = 4.433 × 10²³

Thus the number of molecules present is 4.432 × 10²³.

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Calculate the volume of a solution of 3.6 M NH4Cl needed to prepare 350.0 mL of 1.24M NH4CH
Select one:
a. 120 mL
b. 12.0 mL
c. 967 ml
d. 96.7 ml

How many grams of ammonium chloride are in the solution you created in the above problem Select one:
a. 23.28
b. 0.438
c 53.58
d. 232 23​

Answers

Answer:

select one :c

select two:d

1. A sulfur atom has 16 protons, 18 neutrons, and 16
electrons. A sulfide ion has a 2– charge. Which of
the following is the correct number of particles that
make up a sulfide ion?
a. 18 protons, 18 neutrons, and 16 elections
b. 16 protons, 18 neutrons, and 18 electrons
c. 18 protons, 16 neutrons, and 16 electronis
d. 14 protons, 18 neutrons, and 16 electrons
e. 15 protons, 17 neutrons, and 17 electronis

Answers

Answer:

b. 16 protons, 18 neutrons, and 18 electrons

Explanation:

Things to be remembered

Negative charge on any ionic species indicates gained the electrons

Positive charge on any ionic species indicates lost the electrons

A sulfur atom has 16 protons, 18 neutrons, and 16 electrons, A sulfide ion has a 2– charge which indicates that sulphur has gained two electron from any other atom, ion or species!

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The correct answer is B. Because the number of atoms it has is 16. We also know that it has 2- charge

If a gas has a volume of 1.25 l at a temperature of 300 k, what will the volume change to if the container is cooled to 200k

Answers

The volume of the gas when the container is cooled from a temperature of 300 K to 200 K is 0.83 L

Charles' law

Charles' law states as follow:

V₁ / T₁ = V₂ / T₂

Where

V₁ is the initial volume T₁ is the initial temperature V₂ is the new volume T₂ is the new temperature

How to determine the new volume

From the question given above, the following data were obtained

Initial volume (V₁) = 1.25 LInitial temperature (T₁) = 300 KNew temperature (T₂) = 200 KNew Volume (V₂) =?

V₁ / T₁ = V₂ / T₂

1.25 / 300 = V₂ / 200

Cross multiply

300 × V₂ = 1.25 × 200

Divide both side by 300

V₂ = (1.25 × 200) / 300

V₂ = 0.83 L

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