Answer:
1. Fill a drinking glass with a cup of water (1 cup =237 ml). Add sugar one teaspoon at a time until you have added 5 teaspoons. Stir and wait until each teaspoon dissolves completely. Between each teaspoon, take a sip and see how “the drink” tastes. After 5 teaspoons you will have added ~ 25 grams, i.e. slightly less than there is in one cup of coca-cola. After how many teaspoons is the drink pleasantly sweet? After how many teaspoons is it way too sweet?
2. Pour half of the sugar-water into a separate drinking class and put it aside for later.
3. To the remaining sugar water solution (~1/2 cup), add small amounts of vinegar, approximately 1/4 teaspoon at a time, taking a small taste after each addition. Keep track of how much vinegar you are adding. How much did you have to add for the drink to taste good to you? Put this glass aside for later comparison.
4. Now fill another drinking glass with half a cup of water (1/2 cup =120 ml), and add the same amount of vinegar that you added to the sugar-water in step 3 in order for it to taste delicious. In other words, you will now have three cups: one with sugar-water, one with sugar-vinegar-water, and one with vinegar-water. Have a taste of the vinegar-water. How does the vinegar-water taste compared to the sugar-vinegar-water drink? To the sugar-water drink?
This is the secret of Coca-Cola! Coca-cola contains a lot of sugar, probably way too much for most people to find tasty. But by adding acid (and some other flavors as well) you can get a tasty drink!
This is an example of the complex ways in which taste molecules can influence each other, and recipes often exploit this fact. By having different flavors play off each other, the crafty cook can adjust the overall flavor experience of a food. This is a similar reason to why some cooks add a bit of sugar to balance out the acidity of tomatoes in a tomato sauce. And Nathan Myhrvold, whom we will hear from later in this course, even goes so far as to add salt to red wine to make it taste better!
Questions:
1. Calculate how many moles of sugar per liter you added to your drink in step 1 before starting to add any vinegar. The molecular weight of sugar (i.e., sucrose) is 342 g/mol, and 1 teaspoon corresponds to approximately 5 grams. Enter your answer to two decimal places, and do not include units.
Teapoons pH 1/4 4.5 2x 1/4 4.2 3x 1/4 4.0 4x 1/4 3.9 5x 1/4 3.8 6x 1/4 3.7 7x 1/4 3.7 8x 1/4 3.6 9x 1/4 3.6 10x 1/4 3.5
2. Calculate the concentration of hydrogen ions in moles per liter in your drink after you added 1.5 tsp of vinegar. You can use the table above which approximates the pH when adding certain amounts of vinegar to water. Enter your answer to one non-zero digit, and do not include units.
unanswered
3. How many times more sugar molecules are there than hydrogen ions in this drink?
Show detailed calculations and sketches to solve problems, we will get similar problems for the final exam. thank you!!!
Explanation:
Answer:
Pebbles100ml 50%
Soil (100ml 15%
Sand (100m) 5%
Explanation:
It's just ugly how fast liquid passes through in this experiment I'm using 100 ml
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PLLLLLLLLLZZZZZZZZZZ HHHHHEEELLLLLLLPPPPPPP!!!!!!1!!!
HELP PLEASE! and give out a good explanation!
Which of the following form the pattern of surface currents on Earth?
A. high and low tides
B. the Sun's gravitational pull and Earth's rotation
C. global winds and the Coriolis effect
D. the Moon's gravitational pull and Earth's tilt on its axis
Answer:
C. global winds and the Coriolis effect
Explanation:
Gyres flow clockwise in Northern Hemisphere oceans and counterclockwise in Southern Hemisphere oceans because of the Coriolis Effect. creating surface ocean currents.
Which of the following is an unbalanced equation?
A. CaCO3 --> CaO + CO2
B. PbO2 + 2H2-->2Pb + H2O
C. CS2 + 2O2 --> CO2 + 2SO2
Answer:
B. PbO2 + 2H2-->2Pb + H2O
Explanation:
Helllllllllpppppppppp???/!!!!!!
Which of the following statements are true about elements? Choose the two correct answers.
A.
Elements are the simplest form of matter.
B.
Elements combine together to form compounds.
C.
Elements are found in sunlight
D.
Elements are always positively charged.
E.
Elements are found in both living and nonliving things.
How is the Sun related to day and night and the change of seasons?
Explanation:
As the Earth moves around the sun during a year, the northern half of the Earth is tilted towards the sun in the summer, making daytime longer than night. In winter, this reverses; the earth tilts away from the sun and nighttime becomes longer
Answer:
As the Earth moves around the sun during a year, the northern half of the Earth is tilted towards the sun in the summer, making daytime longer than night. In winter, this reverses; the earth tilts away from the sun and nighttime becomes longer.
Explanation:
hope this helps have a good rest of your day :) ❤
Answer all questions pls
1) How does the cryosphere help regulate Earth's temperature?
2) What kind of organisms are found in oceanic trenches? Describe.
3) Explain how an Estuary can support a wide variety of food webs.
4) List out and describe the factors that help meteorologists forecast weather.
Answer:
1) The cryosphere contains the frozen parts of the planet. This sphere helps maintain Earth's climate by reflecting incoming solar radiation back into space. As the world warms due to increasing greenhouse gases being added to the atmosphere by humans, the snow and ice are melting.
2) Organisms like the Frilled Shark, Giant Spider Crab. Atlantic Wolffish Pair, Fangtooth Fish, Six-Gill Shark, Giant Tube Worms, Vampire Squid, Pacific Viperfish. But there are most likely archaeabacteria which are prokaryotic bacteria or single-celled organisms. A Prokaryotic cell does not contain a nucleus. It only contains one chromosome and is a single-celled organism. It was the only form of life on earth for millions of years. Examples of a Prokaryotic cell are the different types of bacteria present today.
3) Many different types of plant and animal communities call estuaries home because their waters are typically brackish — a mixture of fresh water draining from the land and salty seawater. This unique combination of salty and fresh water creates a variety of habitats. Estuaries are full of decaying plants and animals. This makes the soil of estuaries rich in nutrients. Because the soil is so rich, lots of different plants grow in estuaries. The plants attract lots of different animals to the estuary and those animals attract other animals to the estuary.
4) Temperature, humidity, precipitation, air pressure, wind speed, and wind direction are key observations of the atmosphere that help forecasters predict the weather. These same factors have been used since the first weather observations were recorded. Observational data collected by doppler radar, radiosondes, weather satellites, buoys and other instruments are fed into computerized NWS numerical forecast models. The models use equations, along with new and past weather data, to provide forecast guidance to our meteorologists. The three main factors of weather are light (solar radiation), water (moisture) and temperature.
Explanation:
U dont have to copy and paste this put these are some ideas to use for ur answers
hurry please!!!
a) 42%
b) 14%
c) 64%
d) 100%
Answer:
A)42%
Explanation:
10+22+15+11=58
100-58=42
True or false: Nonmetals are good conductors of electricity?
Answer:
False
They dont conduct electricity that well/at all
How do sound waves travel?
A.Sound causes the air near it to vibrate inwards.
B.Sound transforms waves into different frequencies.
C.Sound waves radiate outward from a central point.
D.Sound moves randomly in different directions.
Please help me!
Answer:
THE ANSWER IS B!!!!
Explanation:
Help! I don't know if it's abrasion or ice wedging
A rock that is exposed to heating and cooling over and over again will eventually crack and break into smaller pieces. This is an example of what type of mechanical weathering?
A abrasion
B acid rain
C ice wedging
Please help me with this I will give out extra points with the brain thing if you help me with this science question 3/5 image below. I promise
Answer:
A) 200 m/s2
Explanation:
Force is the push or pulls on an object with mass that causes it to change velocity or to accelerate.
Force represents a vector, which means it has both magnitude and direction.
Given:
Mass of metal ball = 0.025 kg
Force = 5 N
To Find:
Acceleration, = ?
Solution:
Formula:
The Viscosity of a liquid is the “thickness”, or how slowly it flows. Which layer of Earth do you think this is coming from?
A roller coaster travels from the top of the hill to the bottom of the hill. What happens to its energy? Choose all that apply.
- Potential energy decreases
- Potential energy increases
- Kinetic energy increases
- Kinetic energy decreases
- Some potential and kinetic energy is converted to thermal energy by friction.
Answer:
Kinetic energy increases
Explanation:
Kinetic energy is energy that kinda only happens when somethings like moving so if something is moving super fast its kinetic energy is increasing but if something is slowing down from fast to slow its kinetic energy is decreasing that make sense?
a) the bars are the same color
b) bar one and bar two span 2 months, but the third bar spans 3 months
c) the number sold should've counted to 1,000
who invented the re-breathers for the fire fighters?
Answer: Pierre Aimable De Saint Simon Sicard
Explanation:
A prototype rebreather was built in 1849 by Pierre Aimable De Saint Simon Sicard. It had a large back mounted oxygen tank with working pressure of about 13.3 bar, and two scrubbers containing sponges soaked in a caustic soda solution
Which plant process is illustrated above?
transpiration
respiration
photosynthesis
germination
It is the process of photosynthesis. In this process plants absorb water, carbon dioxide, nutrients and sunlight to produce food and oxygen reserves.
A racoon has 8 levels of classification. In which level would you find an organism more closely related to a racoon?
A.Same Domain
B.Same Class
C.Same Phylum
D.Same order
Answer:
class
Explanation:
Answer:
b. same class
Explanation:
because domain is sort of like a different species but same classification means it is in the FAMILY of raccoons.
The text is divided into sections with subheadings. What does the section with the subheading "Taking Precautions" list?
a. tips for getting into the Guinness Book of World Records
Selected:b. tips for walking to the North PoleThis answer is incorrect.
c. tips for staying safe in the cold
d. tips for building a snowman
Where else do hurricanes occur?
Answer:
Hurricanes are not restricted to just the eastern Pacific and the North Atlantic; they also occur in other places where they are known as the tropical cyclone (South Atlantic Ocean, Indian Ocean) or Typhoons (Western Pacific Ocean).
Explanation:
Hurricanes originate in the Atlantic basin, which includes the Atlantic Ocean, Caribbean Sea, and Gulf of Mexico, the eastern North Pacific Ocean, and, less frequently, the central North Pacific Ocean.
Hope this helps:)
can someone do this for me on paper
Create a graphic organizer, mind map, or concept map reflecting the terminology used to explain the anatomy and physiology of the integumentary system.
An incandescent light bulb uses 10% of the total energy as light, what happens to the remaining 90% of the electrical energy used by the bulb?
A. The electrical energy is destroyed when it is unused by the bulb.
B. The electrical energy is captured and 90 J are saved for each bulb.
C. The electrical energy is redirected to other electrical appliances in the circuit.
D. The electrical energy is transformed into thermal energy, so the bulb becomes hot.
could someone try and solvethis?
Answer:
can u retake the photo it does not show it all?
A plate of food has both thermal energy (form of kinetic energy) and chemical energy (form of potential energy).
True
False
what do you notice about these two images
Answer:
These two images are pictures of the moon. The first one is the moon is in the third quarter. And the second picture is of the moon in the first quarter.
Explanation:
Hope This Helps!!
(brainliest please, if possible)
Working with one sample at a time, add water to the glass one tablespoon at a time. Water should soak the sample from the bottom up. Count the number of tablespoons of water it takes to bring the water level up to the top of the sample. Record the amount in the chart.
Calculate the porosity of each sample using this formula, and record the results in the table. “Total sample volume” is the amount of soil, sand, or pebbles in the sample. A half cup is equal to 8 tablespoons.
% porosity = (amount of water added to sample ÷ total sample volume) × 100 Water Added to Sample
% Porosity
Pebbles
Enter your results here:
Soil
Enter your results here:
Sand
Enter your results here:
Answer:
This is confusing
but if you still need help, you can search it online
Explanation:
**Suppose a cart is being pushed by a certain net force. If the net force is doubled, by how much does the acceleration change? Explain.
NO WORK = NO CREDIT = REPORT
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Suppose the city wanted to put a nuclear power plant in your community. What would some of the disadvantages be?
:(
Nuclear power plants use uranium as fuel as in nuclear reactions. The process of mining uranium releases high amounts of carbon dioxide into the environment.
What are nuclear reactions?There are two types of nuclear reactions which are nuclear fusion and nuclear fission .They involve the combination and disintegration of the element's nucleus respectively.
In nuclear fission, the nucleus of the atom is bombarded with electrons of low energy which splits the nucleus in to two parts .Large amount of energy is released in the process.It is used in nuclear power reactors as it produces large amount of energy.
In nuclear fusion,on the other hand, is a reaction which occurs when two or more atoms combine to form a heavy nucleus.Large amount of energy is released in the process which is greater than that of the energy which is released in nuclear fission process.
Learn more about nuclear reactions,here:
https://brainly.com/question/13315150
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Please help me with this I will give out extra points with the brain thing if you help me with this science question 4/5 image below. I promise
Some of the minerals in the collection are called ores; others are not. What do you suppose is the difference between them
Answer:
What are the answer choices
Explanation: