How much heat is required to change 235 g of iodine at 25 degrees celsius into vapor at 198 degrees celsius? The melting point is 113.5 degrees celsius and the boiling point is 185.4 degrees celsius.​

Answers

Answer 1

Answer:

koe Pgl smjega but kya karu mods ka acc mil nai raha and acc delete karna h


Related Questions

during an earthquake, geologists use a machine called what

Answers

Answer:

sesimographs

Explanation:

Answer:

A seismometer

Explanation:

it measures seismic waves

The line "Come, I will make the continent indissoluble" from "For You O Democracy" implies democracy will make the nation stronger than ever before. Given this, what is most likely the meaning of indissoluble?.

Answers

Answer:

Permanent

Explanation:

I took the text

how many moles of c are formed upon complete reaction of 2 mol of b according to the generic chemical reaction: a 2b->c

Answers

Answer:

1 mol

Explanation:

It's about balacing the equation. 2 parts "b" can form 1 part "a". So take 2 mol and divide by 2.

which would best be categorized as heat transfer by conduction?
a.) wearing a white shirt to stay cool on a summer day
b.) warming your body under the sun in summer
c.) feeling the heat from a lightbulb with your hand when touching the bulb
d.) feeling the heat from a light bulb while holding your hand from 6 inches away

Answers

Answer:

c.) feeling the heat from a lightbulb with your hand when touching the bulb

Explanation:

In heat transfer by conduction, feeling the heat from a lightbulb with your hand when touching the bulb will be categorised as the best condition.

c.) feeling the heat from a lightbulb with your hand when touching the bulb

It is C because it is the direct transfer of heat from the lightbulb to your hand

which characteristic of bones is often very different from one individual to another?


a. the number of bones

b. the cellular make up of the bones

c. the size of the bones

d. the composition of the bones

Answers

D is the correct answer

please help I attached an image

Answers

Answer:

B

Explanation:

Nonmetals have nearly full valence shells and try very hard to get that last few electrons to complete their valence shell. This allows them to achieve noble gas stability. This is why they have high electronegativities and electron affinities.

how does the solubility of oxygen in water affect the value of r you determined?

Answers

Answer:

R, the gas law constant, is a constant,

Solubility of gas is inversely proportional to temperature.

Solubility of gas ∝ 1/Temperature

That means as temperature increases the solubility gas goes on decreasing and vice versa.

But R is inversely proportional to temperature .

So Solubility ∝ R. (1/T ∝ R)

That means solubility of gas goes on increasing as R increases.

Step 2: Result

Result:

So from above conclusion the solubility of Oxygen in water increases that result into increasing R value.

Explanation:

If you tum out all of the lights in a room and shine a green flashlight on to a red apple, what color will you see?

Answers

Answer:

black

Explanation:

In white light, a red apple absorbs all the colors (including green) of the spectrum except red, which it reflects.

A green filter absorbs all the colors of the spectrum except green, which is transmitted through the filter (and comes through as green light).

When the green light shines on a red apple, the red apple absorbs the green light.

Since there is no red light shining on the apple, there is no red light to reflect, so the apple appears black.

Hope this helps!

When white light falls on an object the body absorbs all colors of light and reflects some colors of light which we see the object to be. For eg. A red ball reflects red color and absorbs the rest colors.So,if I throw green light on a red ball the ball will absorb that green light.

A student wants to conduct an investigation on vapor pressure Which statement describes how vapor pressure is related to an observable phase change?

A liquid boils when the vapor pressure equals the boiling point.
A liquid freezes when the vapor pressure equals the melting point.
A liquid freezes when the vapor pressure equals the atmospheric pressure.
A liquid boils when the vapor pressure equals the atmospheric pressure.

Answers

The Whole Electrical Bonding Investigation Plan Quick check

1) B. boiling point, surface tension, vapor pressure

2) A. glycerin

3) C. the temperature at which additional heat energy causes the substance to change from a liquid to a gas

4) D. Heat each substance in liquid form to its boiling point. Measure the temperature of each substance

5) A. A liquid boils when the vapor pressure equals the atmospheric pressure.

The equation shows a neutralization reaction. H2SO4 2NaOH Na2SO4 2H2O What is Na2SO4? an acid a base a salt an ion.

Answers

Basically the formula of 2Naoh = hu

One of the following is not a property of metals
а
high malleability
ь
high compressibility
с
high melting point
d
high ductility

Answers

Answer:

option b

Explanation:

high compressibility is not a property of metal.

how many moles are in 2.5g of n2

Answers

Answer:

0.089

Explanation:

n= m/M = 2.5/14 = 5/28 mol

ok done. thank to me :>

Can som one pls do this for me easy 50 pointssssssssss
animal: Southwestern Sea Otter


What are the threats to the survival of this species in the United States?
What, if anything, has been proposed to save the species?
What role does the species play in its environment?
If the species disappeared, what effect might it have on the environment?
How much, if anything, is being spent on conservation efforts in the United States for the species?



someone pls just answer the questions and put them on the answer box

Answers

Answer:

1. southwestern sea otters include entrapment or entanglement in fishing gear, oil spills, and climate change.

2. Reduce, reuse, and recycle whenever you can.

Dispose of hazardous wastes properly.

Grow a garden. The roots take in water, reducing the amount of runoff.

Use nontoxic household cleaning products.

Don’t litter or dump materials into storm drains.

Pick up after your pets.

Use less water.

Purchase sustainable, recycled, biodegradable goods.

Volunteer to help or create a beach clean up.

Get your car oil changed to prevent leaks.

Donate to the California Sea Otter Fund.

Learn more about ocean issues and share your knowledge!

3. They eat sea urchins and other invertebrates that graze on giant kelp. Without sea otters, these grazing animals can destroy kelp forests and consequently the wide diversity of animals that depend upon kelp habitat for survival.

4. sea otters are critical to maintaining the balance of nearshore ecosystems, such as kelp forests, embayments and estuaries. Without sea otters, sea urchins can overpopulate the sea floor and devour the kelp forests that provide cover and food for many other marine animals.

5. haven’t found anything on that

Answer:

Threats to southern sea otters includes: 1.entrapment or entanglement in fishing gear, 2.oil spills, and climate change

Yeah something has been proposed to save the species which are:

1.Reduce, reuse, and recycle whenever you can.

2.Dispose of hazardous wastes properly.

3.Use nontoxic household cleaning products.

4.Don't litter or dump materials into storm drains

5.Purchase sustainable, recycled, biodegradable goods.

6. Range expansion is key to southern sea otter recovery and to the restoration of ecosystems in which sea otters were once the keystone species.

Southern sea otters play a critical role as a keystone species.

Without sea otters, sea urchins can overpopulate the sea floor and devour the kelp forests that provide cover and food for many other marine animals. Sea otters help ecosystems capture carbon from the atmosphere and store it as biomass and deep-sea detritus, preventing it from being converted back to carbon dioxide and contributing to climate change.

Sea Otter Fund: $3 Million and Counting

Hope this helps pls mark me Branliest

Question 2 (5 points)
(04.01 LC)
Look at the chemical equation:
2H2S + 302 - 2H2O + 2502
How many atoms of hydrogen (H) are present on both sides of the equation? (5 points)
a
2.
Ob
3
Ос
4
Od 6

Answers

Answer:

4 atoms

Explanation:

I hope it helps you!

which side of the periodic table are the metals on

Answers

Answer:

left

Explanation:

Metals are to the left of the line (excluding hydrogen, which is a nonmetal), nonmetals are to the right of the line, and metalloids are to the immediate right of the line.

(Hope this helps can I pls have brainlist (crown)☺️)

b) Explain how a burette and a conical flask should be rinsed before a titration experiment?​

Answers

[tex] \large \text{Answer} \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ [/tex]

If you rinse the burette with the solution to be used, then any tiny amounts of liquid remaining are the same as the solution used to fill the burette, so they will not change the concentration of the solution in any way. This is to prevent contamination.

~Hope it helps you ~

Suppose you are planning an afternoon picnic a week in advance. Fair weather is forecast for that day, but a storm is expected that night. What will you do? Explain your reasoning.

Answers

I'd schedule the picnic a bit earlier than originally planed. I'd do this because everyone can be home by the time the rain starts.

If you don't want to do that do /weather clear and no more rain.

What is true about the light shown above?

A. All of the light is refracted

B. All of the light is reflected

C. Some of the light is refracted, and some of the light is reflected

D. None of the light is refracted or reflected

Answers

Answer:

The answer is D. None of the light is refracted or reflected.

Explanation:

Just trust :)

why do we adjust coefficients when balancing chemical equations and not subscripts?

Answers

Answer:

By changing the coefficients you change the amount you have of certain compounds in the equation, whereas changing the subscript would change what compounds are actually in the equation because it would change the ratio of how many atoms of each element are in a compound.

For Example:

Outside of Balancing Equations, [tex]NO_{2}[/tex] (Nitrite) and [tex]NO_{3}[/tex] (Nitrate) are different because one forms a strong acid while the other forms a weak acid based on how many oxygen atoms are added to the compound. So in a chemical equation, if you change the subscripts, you change the entire compound so your reaction may be with a weak acid instead of a strong acid and give you a different product. Meanwhile, changing the coefficient changes the amount of the compound you have for the reaction in order to maintain the Conservation of Mass Law.

How can air pollution affect plants
A. Air pollution can block sun light from reaching plants
B. Air pollution can affect the water plants need.
C. Air pollution absorbs carbon dioxide.
D. Air pollution can change normal temperatures of a region. ​

Answers

Answer:

A

Explanation:

B) pollution doesn't affect water

C) Air pollution makes carbon dioxide

D) air pollution does not affect temperature

Describe how to do an experiment to show that when you dissolve salt in water the salt is still there.

Answers

Answer:

When salt is dissolved in water, the particles of salt get into the spaces between particles of water and starts dissolving and disappear.

Explanation:

a substance that cannot be broken down into simpler substances

Answers

Elements are pure substances that cannot be broken down into simpler substances by ordinary chemical means.

How do the isotopes hydrogen-2 and hydrogen-3 differ?
A. Hydrogen-2 has three protons.
B. Hydrogen-2 has no protons.
C. Hydrogen-3 has one more electron than hydrogen -2.
D. Hydrogen-3 has two neutrons.
PLS SOMEONE HELP

Answers

Answer:

C hydrogen 3 has 0one more electron than hydrogen 2

chemistry A Gases unit test

Answers

Answer:

gas is composed to particles and has a mass.

Look at the three kinds of houses shown in the simulation. Which house do you think will best resist damage from a tsunami? Which house will suffer the most damage from a tsunami? Do you think any of the houses will survive a large tsunami? Write down your predictions.

Answers

Answer:

The brick house will best resist damage from a tsunami, and the straw house will suffer the most damage from a tsunami. I predict these reasons because brick has a stronger material than the rest of the houses, while the straw house has the weakest material than the rest of the houses. No, I do not think any of the houses can survive a massive tsunami because if the tsunami was 22 feet tall, the brick house would become damaged due to the lack of support. And, the other houses can't take a tsunami higher than 10 feet. The brick house can only take tsunamis less than 20 feet.

Explanation:

Try that

An element has 3 electrons, 3 protons and 4 neutrons. What will be its atomic number and mass number? (​

Answers

Answer:

its atomic number will be 3 and it's mass number will be 7. it is lithium

Will this reaction occur?
Ni (s) + H,O(1)
1
Yes

No

Answers

No
Because it’s not balanced

Look at the three kinds of houses shown in the simulation. Which house do you think will best resist damage from a tsunami? Which house will suffer the most damage from a tsunami? Do you think any of the houses will survive a large tsunami? Write down your predictions. https://app.edmentum.com/redirect//358692this link will help the people answer my question the link

Answers

Answer:

all the houses will be damaged

Explanation:

i voted for it

Can anyone help meee





calculate the solubility product for the following solutions:
a) a saturated solution of cadmium sulfide, CdS (solubility = 1.46 • 10 ^ -11 mol / l
b) a saturated solution of calcium fluoride, CaF2, containing 0.0168g / l CaF2

Answers

Answer:

what is total amount of saturated solution

As the pressure of an enclosed gas decreases to half its original value, what happens to the volume of the gas if the temperature is held constant?

Answers

Answer:

At this point the volume of the gas is halved. If the pressure on the piston is again doubled, the volume of gas decreases to one-fourth its original volume. FIGURE 9.8 Boyle's Law: At constant temperature, the volume of a gas sample is inversely proportional to the pressure.

The volume of the gas doubles.

Boyles law state that the pressure of a gas is indirectly proportional to the volume at constant temperature. It is given by:

PV = constant

Let us assume that initially the pressure is P and the volume is V, hence:

[tex]P_1=P,V_1=V[/tex]

The volume decreases to half its original value, hence:

[tex]P_2=\frac{P}{2}[/tex]

Therefore:

[tex]P_1V_1=P_2V_2\\\\\\PV=\frac{P}{2}V_2\\\\V_2=2V[/tex]

Therefore the volume of the gas doubles.

Find out more at: https://brainly.com/question/1437490

Other Questions
Plz help this is due in 15mins!!! im rlly stressed out!1. Reread the highlighted lines. Then give a short summary of what happened at the intersection and explain.2. What do you think Saeng might be thinking or feeling as the instructor is evaluating her performance on the test? Explain. Why do the beasts take Meg?They fear that her negative emotions will bring the Black Thing to their peaceful planet.They think that she can help them in their fight against the Dark Thing on Ixchel.They know she needs to be treated to undo the damage caused by the Black Thing.They want to ask her questions about Camazotz away from her father and Calvin. round to the nearest hundred 104,549 help 6th grade A car was valued at 380,000 in the year 2014. By 2019, the value had depreciated to 110,000. If the cars value continues to drop by the same percentage,what will it be worth by 2017?Please help thanks and Godbless 40. If f(x) = -3x + 7 and g(x) = -7x+3, what is the value of f(-3) - g(3)? how can i Find the volume of the following cylinder that the Radius of 1 cm Height of 8 cm how can i get over my social medias getting deleted without my wanting to/permission lol i dont wanna be so annoyed by it i just wanna let it go but its a little difficult What does it mean when your body has built up a tolerance to a drug?You need more of the drug to get the desired effect.Your body does not build up a tolerance to most drugs, especially illegal ones.It means that you can use drugs, but it does not harm you because your body can tolerate it.None of these. Arrange the following in ascending order b) 3.14, 31.4, 0.314, 3 2/4, 3.141 c) 2.0867, 0.28677, 28.067, 0.2867, 2.867 1/2+y=5 1/4 complete the following addition equations what is the degree measure of the missing angle? 84 34 114 24 Lol pls hurry!!I need this asap Select the correct answer. Which of these elements is most likely to keep an audience engaged in a presentation that lasts for a long time? A. slides with a lot of text B. interactive quizzes (it-is-B) C. excerpts of speeches D. multiple onscreen Images E. voice recordings supporting the text A gold doubloon 6.1 cm in diameter and 2.0mm thick is dropped over the side of a Pirate Ship. When it comes to rest on the ocean floor at a depth of 770m how much has its volume changed Implementing the closure process includes several _______ activities, including getting delivery acceptance from the customer. How do consumer cooperatives increase consumption capabilities and purchasing power of members?The 501(c)(3) tax code allows consumer cooperatives to receive discounts on their purchases of goodsConsumer cooperatives are capable of generating a profit which can then be distributed to their members, thus providing members with additional income to increase their consumption capabilities and purchasingpower.Consumer cooperatives offer loans to their members at better rates, which then allows the membersgreater access to financial resources to increase their consumption and purchasing power.Consumer cooperatives pool their resources together to purchase goods in bulk. By purchasing goods in bulk, the cost of acquiring these goods is reduced for members compared to the normal cost that an individual would face when purchasing the product. Match each term to its characteristics.Match Term DefinitionEstablishing the people or items on a list A) To register names of itemsListing and ordering B) Done before providing detailsSimple lists C) To show the order of itemsRanking D) To create a visual list on dominant hand labor unions, corporations, and all private citizens were promised a ''square deal'' by president Noahs recipe for one batch of sparkling orange juice uses 4 liters of orange juice and 5 liters of soda water. If someone uses 400 liters of orange juice, how much soda water would they need? And how many batches would that make? 18 is 120 percent of what number