Chemistry High School

The specific heat of liquid H2O is 4.184 J/g°C. If 32.7 grams of water are heated from
12 °C to 77 °C, how much energy is required?

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ASAP please will mark as brainlist don’t got much time

The Specific Heat Of Liquid H2O Is 4.184 J/gC. If 32.7 Grams Of Water Are Heated From12 C To 77 C, How

Answers

Answer 1

Answer:

8893.092J

Explanation:

energy= mass × specific heat capacity of water × change in temperature

=32.7×4.184×(77-12)

=8893.092J

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greatly reduced by hunters?
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Answer:

I cant help you because you didn't provide a picture for the graph

Explanation:

9. Do all enzymes function at the same pH?

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Each enzyme has an optimum pH but it also has a working range of pH values at which it will still work well. This depends on the type of enzyme. The enzyme pepsin breaks down proteins in the acidic conditions of the stomach. ... Catalase has an optimum pH of 9 and a working range of between pH 7-11.        Hope this was helpful

Explanation:

If you produced 50.0 moles of carbon dioxide from the complete combustion of ethanol in air, how many moles of water vapor are also produced?

Answers

hojbiuhok.

Explanation:

.;..........hv

Please help me with this! I’ll mark you brainiest if it’s correct.
I do know it’s either A or C

Answers

It is A
I only know that Lithium does not have Roman numerals after it only certain elements do so yea!

Answer:

the correct answer is A

Explanation:

two students performed an investigation

Answers

Answer:

what was the investigation ???

Why is it important to plants and animals that photosynthesis occurs?

Answers

Photosynthesis comes from plants that turn light energy into chemical energy which organisms eat and use to do their activities and thrive in their environment.

An atom forms an ion with a -2 charge. It is:
A:A metal in group 2
B:A metal in group 6
C:A non-metal in group 2
D:A non-metal in group 6

Answers

the correct answer is D


To find the volume of a ring, the water displacement method was used.
What is the volume of the ring with correct significant figures?

Answers

Answer:

4 cm³?

Explanation:

68-64

What is the balanced equation of Na2S+CuSO4=CuS+Na2SO4?​

Answers

what you were given is the balanced chemical equation

Which statement correctly describes acetyl-CoA?
It connects glycolysis to the citric acid cycle.
It connects the citric acid cycle to the electron transport chain.
It is the product of catabolism of proteins.
It is the product of catabolism of fats.

Answers

A. It connects glycolysis to the citric acid cycle.

Explanation: Right on edge

What type of energy does most energy end up as?
O heat
O chemical
light
O electrical

Answers

Answer:

Heat

Explanation:

All three types of worms that undergo asexual reproduction use which process?
binary fission
budding
fragmentation
spore formation

Answers

Answer:

binary fission

Explanation:

i just took the quiz

What would be the correct answers

Answers

Answer:

A chemical bond is formed and energy is absorbed I do believe

Explanation:

18)
Have you ever noticed things move or change in nature without the help of a human? Think about patterns of ripples formed in
sand on the playground, and a hole or dip formed in soit under a rain gutter. What is the BEST explanation of how things like this
happen?
A)
Soitand-rocks make changes tech season like teaves on trees
B)
Water and/or wind make changes to soil and/or rocks over time
C)
Gravity causes dirt on the playground and under gutters to move
D)
The Moon causes rocks and soil to move, like the tides of oceans
16)
Which process causes hillsides and mountains to gradually get smaller?
-)
rch
O
Oop

Answers

Answer:

B)

Explanation:

because the wind is moving the sand and the rain moves the soil

16) weathering and erosion

hiii please help i’ll give brainliest

Answers

Answer:

the applied force is greater than the force of friction

Explanation:

ugh i don’t know:(
please help!!!

Answers

cbr4 hope it helps

What is the symbol of element Californium?

Answers

Answer:

Californium is a chemical element which is radioactive, its symbol is 'Cf' and atomic number is 98

Answer: the elementale symble is Cf

Explanation: the symble of element is Cf

Compare and contrast the molecular activity of solids, liquids, and gases.​

Answers

Answer:

The molecules in a solid are close together and they vibrate in place. The molecules in a liquid move quickly and farther apart from eachother. The particles in a gas move freely at high speeds and slide past eachother.

A piece of substance Z is heated directly and it is found that 5805 Joules of energy are needed to raise the temperature of the substance from 25.0C to 35.0C. The specific heat of substance Z is known to be 1.28 J/gc. What was the mass in grams of this piece of substance Z?

Answers

Answer:

10.0 should be your answer

Explanation:

I have had this before unless of course they changed it

Question 3 of 10
What is thermodynamics?
O A. The study of the transfer of hot and cold energy
B. The study of the movement of energy and heat
C. The study of kinetic energy and potential energy
D. The study of the conservation of matter and energy

Answers

Answer:

B

Explanation:

the branch of physical science that deals with the relations between heat and other forms of energy (such as mechanical, electrical, or chemical energy), and, by extension, of the relationships between all forms of energy.

Answer:

B

Explanation:

Define unbalanced forces(giving Brainly)

Answers

Answer:

Unbalanced forces are forces whose net amount is not zero.

This can take place when two equal forces are acting in the same direction or opposite direction but with different forces.

Unbalanced forces make some change in the position of the object on which force is exerted.

Answer:

This can take place when two equal forces are acting in the same direction or opposite direction but with different forces.

Unbalanced forces make some change in the position of the object on which force is exerted.

Which of the following is NOT a clue that could indicate a chemical change?

A. Change in color
B. Mixing of reactants
C. Change in energy
D. Release of a gas
E. Formation of a precipitate

Answers

Answer:

i think its C, but im not 100% sure. if not c, then D, but C sounds more right.

Explanation:

everything else sounds like sure fire sighs of a chem change. good luck

I NEED HELP :)
A train travels 76 miles in 1 7/12 hours. What is its average speed in miles per hour?

Answers

Answer:

48 mph

Explanation:

total time= 19/12 hr

distence- 76 miles

speed- D/T=76/19/12

which is 48mph

if my answer helps please mark as brainliest.

Answer:

pretty sure its average speed in miles per hour is 48

Explanation:

I just took 76 and divided it by 1 7/12 and got 48

How can a colorless substance be made visible on a chromatography

Answers

Explanation:

s f colourless substances can be followed by the use of fluorescent adsorbents. Ultra-violet light of a wavelength absorbed by the adsorbed substance is employed. The part of the column containing adsorbed substance then appears as a dark band.

HOPE THSI HELPS HAVE A NICE DAY!

Answer:

Colourless substances can be followed by the use of fluorescent adsorbents. Ultra-violet light of a wavelength absorbed by the adsorbed substance is employed. The part of the column containing adsorbed substance then appears as a dark band.

fill in the blank question














please help asap!!!!!!!!!!!!!!

Answers

Answer:

since unlike charges attract, negative side of another water molecule, neutral

What type of energy does each ball have before it falls

Answers

As the ball falls towards the ground, its gravitational potential energy is transformed into kinetic energy.

An example of an abiotic factor that would strongly affect the population of water lilies in a pond?

Answers

Answer:

temperature, light or pH

Explanation:

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O they see things
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O all these answers are correct

Answers

D) all these answers are correct

The atomic size of zirconium is smaller than
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b. Yttrium
c. Molybdenum
d. None of the above

Answers

Answer:

b

Explanation:

because hahamaskdjdjskskskskkssksksks


Activity 7 Let's Think First

Directions: Below are possible situations during an earthquake. Encircle the letter of the appropriate action.

1. If you are outside of your house, move away from the buildings.
A. I will do it
B. I will just run anywhere.

2. If you are inside your house, get cover under a table.
A. I will do it
B. I will not do it

3. If you are in a moving car, what will you say to the driver?
A. Just keep driving.
B. Please stop.

4. Drop to the ground and protect your head.
A. I will do it
B. I will not think about it.

5. Prepare a disaster emergency kit beforehand.
A. I will do it
B. I will not do it.

​

Answers

1. a.
2. a.
3. b.
4. a.
5. a.
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