Chemistry High School

Calculate the heat absorbed when 68.8 g of ice at -30.0 c is converted to steam at 160 c

Answers

Answer 1

Answer: 219 kJ

Explanation:

Calculate The Heat Absorbed When 68.8 G Of Ice At -30.0 C Is Converted To Steam At 160 C

Related Questions

I can determine the molar mass of an element by looking on the Answer under the atomic mass for the element.

Answers

Answer:

YES that is the molar mass can be found as the atomic mass of a single atom, BUT when you get to larger molecules your molar mass will be a combination of atomic masses.

Explanation:

How many copies of DNA do haploid cells have

Answers

Answer:

2 lol

Explanation:

1.
Which statement correctly describes a major defect of the student model in representing the
structure of a plant cell?
A А
It does not demonstrate the ability to grow and divide over time,
пе
B.
It does not demonstrate the ability to move in response to environmental stimuli,
C
It does not represent the organelles as being submerged in a fluid medium
D. It does not represent multiple types of structure as turning light into food,

Answers

B-it does. It demonstrate the ability to move in response to environmental stimuli

A person who controls access to the decision maker is called a(n)

Answers

Answer:

Wdym?

Explanation:

I don't understand this question

Answer:

gatekeeper

Explanation:

define funtional unit?​

Answers

Answer:

The functional unit of a product system is a quantified description of the performance requirements that the product system fulfils. The functional unit should as far as possible relate to the functions of the product rather than to the physical product.

Explanation:

The answer is the first one I’m not trying to take credit.

How many Carbon atoms are shown in the reactants? How many C atoms are shown in the products?

Answers

Answer:

Q) How many Carbon atoms are shown in the reactants

Ans) The reactants have one carbon atom

Q) How many C atoms are shown in the products?

Ans) there is one atom on the product side

The reactants have one carbon atom

Can someone pls help me with a paragraph of what endangered wildlife means ?

Answers

Answer:

Endangered wildlife means that something is at risk of extinction.

Explanation:

Hope I helped

A gas has a volume of 350 ml at 45oC. If the volume changes to 400. ml, what is the new temperature in oC

Answers

Answer:

It should be 28 degrees C

Explanation:

Answer:

28°C

Explanation:


What causes dipole interactions?

bonding of a covalently bonded hydrogen to an unshared electron pair

attraction between ions

attraction between polar molecules

sharing of electron pairs

Answers

Attraction between polar molecules

The direct transfer of energy by electromagnetic waves is called __.

Answers

electromagnetic radiation

Write the systematic names of the following​

Answers

I think it's aluminium chloride

An object was measured by a worker as 35.6 cm long, however, the manufacturer specifications list the length of the object at 35.0 cm. What is the percent error in the workers measurement?

Answers

The answer for this question is 1.71%

Which statement describes the difference between covalent bonds and Van
der Waals forces?
A. Covalent bonds form when there is an attraction between
nonpolar molecules, while Van der Waals forces cause two atoms
to share valence electrons.
B. Covalent bonds occur when two atoms share valence electrons,
while Van der Waals forces cause an attraction between positive
and negative ions.
C. Covalent bonds form when two atoms share valence electrons,
while Van der Waals forces cause an attraction between nonpolar
molecules
D. Covalent bonds form from the attraction of positive ions and freely
moving electrons, while Van der Waals forces cause an attraction
between nonpolar molecules.
it

Answers

Answer:

C. Covalent bonds form when two atoms share valence electrons,

while Van der Waals forces cause an attraction between nonpolar

molecules

Explanation:

A.P.E.X

The statement that describes the difference between covalent bonds and Vander Waals forces is that covalent bonds form when two atoms share valence electrons, while Van der Waals forces cause an attraction between nonpolar molecules.

What is covalent and Vander waal bonding?

Covalent bonds are bonds formed as a result of sharing of electrons between atoms of a compound. Examples of covalent compounds are C2H2, CO2.

On the other hand, van der waal forces are weak electrostatic forces that attract neutral molecules to one another. Examples of van der waal forces are hydrogen bonding.

Therefore, statement that describes the difference between covalent bonds and Vander Waals forces is that covalent bonds form when two atoms share valence electrons, while Van der Waals forces cause an attraction between non polar molecules.

Learn more about van der waal forces at: https://brainly.com/question/10904296

#SPJ5

2. Mitosis is great for repair and damage. TRUE OR FALSE

Answers

Answer:

TRUE

HOPE THIS HELPS!

Explanation:

Answer:

True

Explanation:

Landscapes all over the world change due to:
1) Wind
2) Erosion
3) Water

Answers

Answer:

Erosion

Explanation:

Wind and water change landscapes by erosion.

a b c or d ..........​

Answers

I would say B... ultraviolet rays cause sun burns

Answer:

B

Explanation:

Radiation from ultraviolet rays can cause vision problems and sunburn.

Which of the following describes wind direction?

Answers

there isn’t any pictures or directions showing

Wind direction is reported by the direction from which it originates. For example, a north or northerly wind blows from the north to the south. Wind direction is usually reported in cardinal (or compass) direction, or in degrees.

If you were dividing a recipe in half, which of the following would be the most difficult to scale? OA. One egg OB. A cup of milk Oc. Three medium apples OD. A pint of heavy cream th Reset Next​

Answers

One egg
Because the egg can’t be easily cut or separated in exactly 1/2 an egg

brainley.
How is Earths crust recycled?

Answers

I think it's the last one

(and I'm so sorry if I'm wrong)

Answer:

The answer is D

Explanation:

The rest of them are not cycles.

pls help what’s the answer?

Answers

ima need a little more then 5 points to answer this
I am pretty sure it’s the brown line

What is a solar eclipse? *
When the Moon is completely dark
When part of the Earth is completely dark

When the sun explodes

Answers

When the Earth is engulfed in a shadow cast by the moon which fully blocks the sun

What causes lava to not instantly melt ice sheets when it is poured onto it?

Answers

Answer:

Dry ice

Explanation:

Answer:

The lava doesn't melt through ice because the steam ice sits on top of a blanket of steam rather than on top of the ice itself. This means the friction between the lava and the ice is very low.

Explanation:

Identify the product of the hydrogenation of the following alkene: CH3 + H2 → A) OH B) CH3 CH3 C) Колата jo sono ue D)​

Answers

technically technically the injured be a

true or false : A precipitate is formed when two liquids are combined and a solid compound comes out

Answers

Answer:

true I think ?38363849472

Answer:

true

Explanation:

CF = 5, CD = 12, and EF = 5. Solve for the blanks below:

Answers

Explanation:

please view picture attached with your question for your answer thank you.

A tank consists of a gaseous mixture of 3.83 g of triselenium diiodide, 2.62 g of ammonium telluride, and 1.82 g of iridium (i) sulfate. What is the partial pressure in atm of ammonium telluride if the total pressure in the tank is 2.795 atm?

Answers

Answer: The partial pressure in atm of ammonium telluride is 1.48 atm

Explanation:

According to Raoult's law, the partail pressure of a component at a given temperature is equal to the mole fraction of that component multiplied by the total pressure

[tex]p_A=x\times p_{total}[/tex]  

where, x = mole fraction

[tex]p_A[/tex] = partial pressure of A

[tex]p_{total}[/tex] = total pressure  

[tex]x_{\text {ammonium telluride}}=\frac{\text {moles of ammonium telluride}}{\text {total moles}}[/tex],  

[tex]x_{\text {ammonium telluride}}=\frac{\frac{2.62g}{164g/mol}}{\frac{2.62g}{164g/mol}+\frac{3.83g}{333g/mol}+\frac{1.82g}{673g/mol}}=0.53[/tex]

[tex]p_{\text {ammonium telluride}}=0.53\times 2.795atm=1.481atm[/tex]

Thus the partial pressure in atm of ammonium telluride is 1.48 atm

Look at this glass of soda. Use your knowledge of thermal energy transfer to explain how heat is affecting the following things: ice, soda, glass, and surrounding air.

Answers

Explanation:

Technically, the ice cube melts because the water cools down. This may sound ridiculous at first, but you must consider the fact that the ice melts because it has drawn "heat" (energy) from its surroundings. The "surroundings" being the air and water that surround it (but the water's more important since it's a better conductor of thermal energy).

The surrounding air looses energy while the ice in the glass gains energy.

We know that thermal energy is transferred from a hotter body to a cooler body. If we look as the glass, we will notice that the surrounding air has a greater energy compared to the contents of the glass. The surrounding air looses this energy resulting in the condensation of water vapor in air around the glass.

Similarly, the ice in the glass gains energy and melts. A change of state occurs from solid to liquid as a result of the energy absorbed from the surrounding air.

Learn more: https://brainly.com/question/5147266

In what way is heat transferred to the tubes? (Hint “touching’”)
Please help
I will give you Brainliest

Answers

Answer:

in heat transfer, as the fluid flows along the tube, the wall layers are heated or cooled. temp. variation occurs in the wall layers.

good luck :)

i hope this helps

have a great day !!

If a sample contained 3.01 x 1023 atoms of tellurium, how many grams would this be A) 127.6 g B) 255.2 g C) 63.8 g D) 382.8 g

Answers

i believe it’s D,,,,, i’m sorry if not :(

If a sample contained 3.01 x 10²³ atoms of tellurium, that would be 63.8grams.

HOW TO CALCULATE MASS:The mass of a substance can be calculated by multiplying the number of moles in the substance by its molar mass.

However, the number of moles contained in 3.01 x 10²³ atoms of tellurium need to be calculated by dividing the value by Avogadro's number as follows:

no. of moles = 3.01 x 10²³ ÷ 6.02 × 10²³

no. of moles = 0.5mole

Mass of tellurium = 127.6g/mol × 0.5

Mass of Tellurium = 63.8grams.

Therefore, if a sample contained 3.01 x 10²³ atoms of tellurium, that would be 63.8grams.

Learn more about how to calculate mass at: https://brainly.com/question/8101390

What is the difference between a pure solvent and a solution? Do they have the same physical properties?

Answers

Answer:

The physical properties of a solution are different from those of the pure solvent. ... Colligative properties are those physical properties of solutions of nonvolatile solutes that depend only on the number of particles present in a given amount of solution, not on the nature of those particles.

Pure solvent v/s Solution:A solution is a homogeneous mixture consisting of a solute dissolved into a solvent while the solvent is the dissolving medium.The physical properties for both differs. Colligative properties are those physical properties of solutions of nonvolatile solutes that depend only on the number of particles present in a given amount of solution, not on the nature of those particles.Pure solvents have only one component like n-hexane, water while a solution is a mixture of solute and solvent for example: salt solution.The boiling point of the solvent in a solution is higher than that of the pure solvent.

Learn more:

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