What mass of water freezes if 5.43 kJ oh heat are released in the process

Answers

Answer 1
Q= mass•specific heat•change temp. 5.43=m•4.184•(202-32) M=7.63grams
Answer 2

Answer:

16.3 g

Explanation:

got it right on ck


Related Questions

In the human body, a series of chemical reactions results in the making of energy that is used at both the cellular and organismal levels.

In which course would a person most likely study these chemical reactions?
biochemistry
geochemistry
materials chemistry
physical chemistry

Answers

Answer:

It is A: biochemistry

Explanation: i seen there was no answer so i took a chance and surprisingly got it correct

Answer:

e correct option is all of the above

Explanation:

If a box of 500 washers weighs 125.0g how many boxes would you have if you have 18.0kg of washers? How many washers would this be?

Answers

Answer:

144 boxes, 72,000 washers

Explanation:

I'm not sure if this is right but convert the 18kg to g and then divide it by the grams. You get 144 and then multiply it by 500 for the total number of washers

If a cube has an edge length of 0.843 cm what is the volume of the cube? (Answer should be 3 decimal places)

Answers

Answer:

0.600

Explanation:

Hope this helps!

Urgent help meee ;(((

Answers

Answer:

C

Explanation:

A homologous series is a group of molecules with the same general formula and the same functional group.

What is the independent variable in this experiment?

Answers

Answer:

D

Explanation:

because it was the variable that was changed in the experiment. distance was controlled and speed changed with time.

Which is a homogenous mixture?


1. ceasar salad

2. pre-cooked pizza

3. coffee in a cup

4. different color beads in a bowl

Answers

Answer:

ceasar said is a homogeneous mixture

Answer:

ceasar salad

In dilute aqueous solution, as [H+] increases:
A. pH decreases
B. pOH increases
C. [OH-] decreases

Answers

Answer:

B

Explanation:

The answer is B, I hope this helps you!

If anyone have the answers to this plz tell me

Answers

Explanation:

hey can I please get the passage so that I can help you

How does bacteria from a fecal transplant help the patient with an C. difficile infection?

Answers

Answer:

difficile infection. By reintroducing a healthy diversity of bacteria, fecal transplantation can re-establish colonization resistance to prevent C. difficile from gaining a foothold and becoming a dominant organism in the environment of the gut.

Explanation:

One of the pieces of evidence supporting energy quantization was the line spectra of elements. Why does this demonstrate energy quantization?
a) Photons are packets of energy that act both as a particle and a wave.
b) The spectra is continuous and shows emission at all wavelengths.
c) There are sharp emission lines demonstrating discrete energy levels.
d) All compounds emit light in the ultraviolet and visible regions specifically.​

Answers

Answer:

c) There are sharp emission lines demonstrating discrete energy levels.

Explanation:

When an element emits energy in the form of radiation, it produces a spectrum of colors on a photographic plate. This spectrum can either be continuous or discrete. In continuous spectrum the spectrum continues without any discrimination between two regions. This represents the continuous emission of radiation, and thus the continuous emission of energy without any break.

On the other hand, the line spectrum consists of discrete and sharp lines, which shows the emission of radiation in a certain amount in a certain time, with a break between emission. Hence, the line spectra supports the quantization of energy.

The correct option is:

c) There are sharp emission lines demonstrating discrete energy levels.

How does sediment form?



Molten rock cools below Earth’s surface.



Chemical changes cause sediment to cement together.



Loose material is compacted by pressure.



Weathering breaks down rock and other material.

i will give brainlest also if this get answer becuase i said this no one should have to say that but i will

Answers

Answer:

Loose Material is compacted by pressure.

Which noble gases is closest to magnesium? On the periodic table? What must happen if a magnesium atom for it to have an electron arrangement similar to that of a noble gas?

Answers

Answer:

Neon and loose electrons

Explanation:

Magnesium has an electron configuration of 2e 8e 2e, and Neon is 2e,8e. For Mg to have a similar electron arrangement it must loose its two valence electrons and make it an ion.

Answer:

Noble neon gas is the closest.

Explanation:

noble Neon  gas

The Magnesium would have to lose two electrons

why is diamond hard​

Answers

The outermost shell of each carbon atom has four electrons. In diamond, these electrons are shared with four other carbon atoms to form very strong chemical bonds resulting in an extremely rigid tetrahedral crystal. It is this simple, tightly-bonded arrangement that makes diamond one of the hardest substances on Earth.

Answer: Diamond is hard due to its giant covalent lattice and it has many strong covalent bonds.

Explanation:

What is often added to the water used when reacting the group 1 metals with
water?
Universal indicator
An acid
An alkali
Oil
What is produced when sodium reacts with water?
Sodium oxide and water

Answers

Answer:

an acid.

sodium oxide and water

How to do ionic equations

Answers

Answer:

Write the ionic equation by breaking all the soluble ionic compounds into their respective ions. Each ion should be shown with its charge and an to show that it is present in solution. Use coefficients to show the number of each ion present.

Explanation:

Hope this helps and I hope you have a wonderful day! Spread the love!

state four difference between the series and parallel connection?​

Answers

Answer:

1- The components in a series circuit are arranged in a single path from one end of supply to another end. However, the multiple components in a parallel circuit are arranged in multiple paths where the two end terminals of the battery.

2- In the series circuit, different voltage exists across each component in the circuit. Whereas in the parallel circuit, the same voltage exists across the multiple components in the circuit.

3- The equivalent resistance in case of a series circuit is always more than the highest value of resistance in the series connection. While the equivalent resistance in the parallel circuit is always less than any of the individual resistances in parallel combination.

4- A fault in one of the components of the series circuit causes hindrance in the operation of a complete circuit. As against fault in a single component in a parallel network do not hinder the functioning of another part of the circuit.

The detection of a fault in case of a series circuit is difficult, but it is quite easy in parallel circuits.

PLEASE SOMEONE HELPP

Answers

Answer:

D

Explanation:

On July 8th, I will be 8.51472x108 seconds old. How old will I be in years? (Assume 365 days in a year.)
step by step

Answers

Answer:

You will be 27 years old (✿◠‿◠)

The first ionization energy of fluorine and iodine

Answers

Answer:

The most electronegative atom, fluorine, is assigned a value of 4.0, and values range down to cesium and francium which are the least electronegative at 0.7. First Ionization Energy of Iodine First Ionization Energy of Iodine is 10.4513 eV.

Explanation:

how would you differentiate between acid and bases if the list of their chemical formula is given to you​

Answers

To determine whether a substance is an acid or a base, count the hydrogens on each substance before and after the reaction. If the number of hydrogens has decreased that substance is the acid (donates hydrogen ions). If the number of hydrogens has increased that substance is the base (accepts hydrogen ions).
CAN U HEP ME I HAVE A WLEEP APRAFOY AR I CANT GETA WRIS ODNIT PLEASE HWLP

Which of the following is a natural source of electricity?
A deep mines
B ligthening
C coal
D car batteries

Answers

Answer:

c

Explanation:

by burning it we get steam from.it electricity ..........

Which student is responses are correct?​

Answers

Answer:

Neutrons: Electron cloud

Explanation:

I WILL GIVE YOU BRAINLIEST!!!

which sentence uses emitting correctly

A after emitting his mistake, Charlie vowed to make things better.

B Charlie should be emitting an apology.

C Charlie heard birds emitting a very strange sound.

D the emitting sound of an early moring birds woke charlie.

Answers

Answer:

its either A or C

Explanation:

Q) which sentence uses emitting correctly ?

Answer :(c) Charlie heard birds emitting a very strange sound .

Explanation :

Emitting means ' to give off ' , since birds are giving off a strange sound , we say " Charlie heard birds emitting a very strange sound " .

How
myny moles are present in 5.6x1022 atoms of Ne? (0.09 moles Ne)
Sot ne10.05

Answers

Answer:

mole = no of atoms/ 6.02E23.... so therefore answer= 5.6E22/6.02E23= 0.093✨

Help fast!
Determine the density of a liquid if it’s mass is 50.5 grams.

Answers

Answer:

do we have the volume ?

Explanation:

how much electrons are present in MnO4-

Answers

The correct answer is 5

Which of the following is always involved in a scientific inquiry? A. conducting experiments based on scientific questions B. guessing what would happen instead of doing experiments C. knowing the correct answer before you start D. conducting surveys to ask people's opinions on various subjects​

Answers

Answer:

I'm pretty sure it's a I'd its wrong I'm sorry

Answer:

developing solutions to questions through scientific research

Explanation:

Scientific inquiry involves coming up with questions based on observation and reasoning, conducting experiments based on scientific questions,and developing solutions to questions through scientific research.

there are 20 _______ amino acids (9)

(fill in the blank)

Answers

Answer: different

Explanation: There are 20 different amino acids.

which is a characteristic of the part of the atom marked A

Answers

Answer:

Please upload the picture and I can answer

Explanation:

Answering: it is mostly empty space

Explanation:

Explain how the mid-ocean ridge supports
the theory of sea floor spreading.
help plzzz:(

Answers

the ridge of mid ocean b is the answer hope this helps
Other Questions
Approximately what percentage of people would be willing to use a wearable device to help manage their health?A) 25%B) 59%C) 79%D) 100% I, ABRAHAM LINCOLN, President of the United States, do proclaim, declare, and make known to all persons who have, directly or by implication, participated in the existing rebellion, except as hereinafter excepted, that a full pardon is hereby granted to them and each of them . . . upon the condition that every such person shall take and subscribe an oath . . .Proclamation of Amnesty and Reconstruction,Abraham LincolnRead the passage, and then answer the questions that follow.This passage refers to "all persons who have, directly or by implication, participated in the existing rebellion. Who does President Lincoln mean by "all persons?all white citizens living in the Southformerly enslaved personspeople who served in the Confederate governmentmembers of the Union Army ExamWhich of the following characterson the Greek tragedy stage mightwear a mask devoid of muchemotion and physical expression?A. a grieving widowB. a lowly slaveC. a stoic statemanD. a street mob chorus member I need help is anyone is out there and knows how to do this help.HELP ASAP Oriole Products manufactures two component parts: AJ40 and AJ60. AJ40 components are being introduced currently, and AJ60 parts have been in production for several years. For the upcoming period, 1,500 units of each product are planned for manufacturing. Assume that the only relevant overhead cost is for engineering change orders (any requested changes in product design or the manufacturing process). AJ40 components are expected to require 4 change orders and AJ60 only 2. Each AJ40 requires 1 machine hour, and each AJ60 requires 1.5 machine hours. The cost of a change order is $420.Required:Estimate the cost of engineering change orders for AJ40 and AJ60 components if Blue uses a traditional costing method and machine hours as the allocation base. 2/3x+3/4=8 what is the answer During a scientific investigation, which step will a scientist perform first? A 5-7 sentence summary of the story "A matter of trust" #15.4- This table of values represents a linear function.-5NIN-15) Enter an equation in the form of y = mx + b that represents the function.789- Anyone know the answer Solve: (step by step please) x^2+9x+9=0 Mr. Ortiz is a driving instructor. Of his students, 23 have taken the driver's test and 17 of them have passedon the first attempt. Mr. Ortiz earns a $300 bonus if 80% of his students pass the test on the first attempt.How many consecutive students must pass on the first attempt in order for Mr. Ortiz to earn the bonus HURRRY PLLEEASSSSEEE!!! Which was NOT a method of population control favored by the eugenicists?The History of Abortion: Select the best answer from the cholces provided.A. Selective breedingB.AbortionC.MurderD.Forced sterilization Antes, me daban miedo los fantasmas. 3/4 divided by 1/8 show work pls define Hypothermia in a way a elementary kid would understand Shelly buys a desk to sell in her shop. She marks the price up by 35% and sells the desk for $290.25. What price did Shelly pay for the desk? Please explain The most massive planet in the solar system, Jupiter, has a mass of about 1,898,000,000,000,000,000,000,000,000 kg. The least massive planet is Mercury, which has a mass of about 330,000,000,000,000,000,000,000 kg. How many times more massive is Jupiter than Mercury? Answer the questions to find out. 1. Estimate Jupiter's mass using a one-digit whole number times a power of 10. Be sure to include units. What number was assigned to the first bill that originated in the Senate during the 115th Congress?S.1S.115S.115.1S.115.a