A student decides to dissolve crackers in their soup as fast as possible. After increasing the surface area of the crackers, they want to allow more molecules of the soup to come in contact with the crackers.
What should be done next?
let the soup sit a few minutes
add salt to the soup
stir the soup with a spoon
cover the soup
Answer:
They can let the cracker sit in the soup for a few minutes
Answer:
stir the soup with the spoon
Explanation:
the crackers dissolve and disapear
The planet Venus is surrounded by a thick layer of gases. In fact, the atmospheric pressure on Venus is over 90 times greater than the atmospheric
pressure on Earth. Which statements are true about boiling water on Venus? Choose the two statements that apply.
A. Water will boil at a higher temperature on Venus than on Earth.
B. Water will boil at a lower temperature on Venus than on Earth.
C. The temperature of water will remain constant while it boils.
D. The temperature of water will increase as it boils.
Answer:
d
Explanation:
A food web showing the flow of energy through a freshwater ecosystem is shown below. Which of the animals shown in the food web is preyed upon by otters?
Answer: minnows
Explanation: tiny fish
Specific Heat and Thermal energy question. 30 points, will give brainliest. Please answer. Pic attached
How many elements are in this compound? Rb3PO4
4
2
3
1
Answer:
1Structures · 2Names and Identifiers · 3Chemical and Physical Properties · 4Related Records · 5Literature · 6Patents · 7Information Sources.
Explanation:
The three unique elements in this compound are
Rb = RubidiumP = PhosphorusO = OxygenFor each molecule, there are three elements of Rubidium, one Phosphorus, and four elements of oxygen.
Side note: The compound [tex]Rb_3PO_4[/tex] is known as Trirubidium phosphate. The "tri" indicates 3 Rubidium atoms, and the phosphate part is [tex]PO_4[/tex]
im gonna run away :) from home
Answer:
dang i dont think thats a good idea man u gud?
Explanation:
PLEASE HELP ASAP!!!! WILL GIVE BRANILEST
Fill a 100-milliliter container with 50 grams of sand. Fill a 100-milliliter container with 50 grams of cold tap water. Fill the last 100-milliliter container with 100 grams of cold tap water. Use the scale to measure the masses.
a scale measuring 100 grams of cold water in a 100-milliliter container, with 100-milliliter containers holding 50 grams of sand and 50 grams of cold water alongside
Pour all the ice cubes into a tub, and fill it with cool tap water to a depth of 2 inches. Place the sand and water samples in the ice water. Cover the entire tub.
three 100-milliliter containers in an ice bath inside a covered tub, with one container holding 50 grams of sand, one holding 50 grams of cold water, and one holding 100 grams of cold water
Every 15 minutes, remove the cover and check the temperatures of the samples using the three thermometers. Wait 30 seconds before recording the thermometer reading. Once the temperatures of the three samples are no more than a degree apart, record the temperatures.
three 100-milliliter containers (each with a thermometer) in an ice bath inside an uncovered basin, with one container holding 50 grams of sand, one holding 50 grams of cold water, and one holding 100 grams of cold water
Answer:Every 15 minutes, remove the cover and check the temperatures of the samples using the three thermometers. Wait 30 seconds before recording the thermometer reading. Once the temperatures of the three samples are no more than a degree apart, record the temperatures.
hope this helps
Answer: Person above me is sped
Explanation:
Answer the 2 following questions: (ill give brainlist to someone)
Imagine you are given a piece of gold and a piece of copper.
Both pieces have a volume of 45cm3.
Which piece of metal would have the larger mass? Explain why:
Tiny pieces of copper and gold are mixed with mercury. Describe a strategy that could be used to separate the copper from the gold using the mercury. Explain why this technique works.
Answer:
I think that both have the same mass
Explanation:
PLEASE MARK ME AS BRAINLIEST THANK YOU
Please answer in order the squares are numbered
Answer:
1 , 2 , 3 , 4 , 5
Explanation:
ILL GIVE 30 POINTS TO THE BRAINIEST
How does a balanced chemical equation prove the Law of Conservation of matter?
Answer:
Every chemical equation follows to the law of conservation of mass, which states that matter cannot be created or destroyed. When you have an equal number of atoms of an element is present on both sides of a chemical equation, the equation is balanced therefore it is following the law of conservation of mass.
Explanation:
Answer:
A balanced chemical proves the Law of Conservation of Matter because the law stats that matter cannot be created nor destroyed. so, in every chemical reaction the amount of matter will stay the same in the product as it did in the reactant.
In other words, balanced chem equations show that mass in conserved in chemical reactions
hope this helped:)
Explanation:
Write a scientific explanation of conduction.
Answer:
Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules.
Explanation:
These vibrating molecules collide with their neighboring molecules, making them also vibrate faster. As these molecules collide, thermal energy is transferred via conduction to the rest of the pan.
Hope this helps!
which list gives the correct numbers of subatomic particles for a neutral atom of helium
Answer:
d
Explanation:
Which of the following events could increase Earth's temperature?
Question 2 options:
A. a decrease in the relative percent of greenhouse gases
B. planting more trees
C. widespread removal of tropical forests
D. a reduction in the use of fossil fuels
Answer:
The answer is C & A.
Hope this helped you out!^^
Temperature measures the average kinetic energy of particles of the substances. Therefore, the correct option is option C that is widespread removal of tropical forests.
What is temperature?Temperature is used to measure degree or intensity of heat of a particular substance. Temperature is measured by an instrument called thermometer.
Temperature can be measured in degree Celsius °c, Kelvin k or in Fahrenheit. Temperature is a physical quantity. Heat always flow from higher temperature source to lower temperature source.
We can convert these units of temperature into one another. The relationship between degree Celsius and Fahrenheit can be expressed as:
°C={5(°F-32)}÷9
A decrease in the relative percent of greenhouse gases, planting more trees and a reduction in the use of fossil fuels will decrease the temperature of the earth. Widespread removal of tropical forests increase the temperature of earth.
Therefore, the correct option is option C that is widespread removal of tropical forests.
To know more about temperature, here:
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Which statement best describes the message of the poem? *
It about icruas flight pls help and it is the poem not the myth
A Icarus flew too far for no good reason.
B Icarus learned something by flying too far.
C Icarus had a habit of flying too far.
D Icarus was excited by flying too far.
What is the number of molecule(s)?
I will give you brainliest
Please explain for all of these 1-5.
1. 4NHCO3
2. 3CaCO3
3. 5NaC2H3O
4. 6NH3
5. 2CaCl2O2
Answer:
4
Explanation:
To clean their drain pipes, some people make a solution of baking soda and vinegar. Baking soda, also known as sodium bicarbonate (NaHCO3), reacts with acetic acid (C2H4O2) in vinegar. When these substances combine, the solution becomes colder, and sodium acetate (NaC2H3O2), water (H2O), and carbon dioxide gas (CO2) form. The gas creates bubbles that help clean the inside of the pipes. is this reaction endothermic or exothermic?
Answer:
i belive its exothermic
Explanation:
yeaaa
Plants and animals exchange materials through the processes of photosynthesis and respiration. Which of these statements is true about the way these two processes are related?
AThe products of photosynthesis inhibit respiration
B.The products of photosynthesis are also the products of respiration
C.The reactants of photosynthesis are also the reactants of respiration
D.The products of photosynthesis are the reactants of respiration
Answer:
B i am pretty sure wait no yeah it is the answer B
Answer:
I think it is The products of photosynthesis are also the products of respiration
Explanation:
Which type of graph would best represent data from this experiment: Measuring the growth of a plant over 2 weeks? Question 1 options:
A. Line graph
B. Bar graph
C. Circle graph
QUICK ANSWER THIS
Aerobic Respiration is the release of energy from food ________ the use of oxygen
A.With
B.Without
Answer:
A. with.
Explanation:
Specific heat and thermal Energy question. Will give brailiest. 30 points please answer!! ASAP
What is the primary force that helps suspension bridges use cables to hold their spans up?
Answer:
tension force
How do water, wind, and thermal energy from the sun move about the earth's surface?
Molecules move more quickly because the sun's light energy transforms into heat energy on the planet. While cooler polar air and water travel away from the poles and towards the equator, warm air and water molecules rise and move in the opposite direction.
What is light energy ?The capacity to make different forms of light visible to human sight makes light energy a sort of kinetic energy. Light is referred to as an electromagnetic radiation that is produced by hot things like the sun, lasers, and lightbulbs. Photons, which are tiny energy packets, are present in light.
Water temperature, biological activities and plant photosynthesis and development are all impacted by light energy.
The air is heated by the sun, and warm air rises. The colder air from the surroundings is forced to enter to replace the rising heated air. The result of this is the wind. Ocean currents function similarly.
Thus, Molecules move more quickly because the sun's light energy transforms into heat energy on the planet.
To learn more about light energy, follow the link;
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Which of the following is an example of a response to stimulus?
you are tired
you are hot
you eat food
you are scared
Option C. you eat food.
What is an example of a response to a stimulus?Examples of stimuli and their responses: You are hungry so you eat some food. A rabbit gets scared so it runs away. You are cold so you put on a jacket.
Which is not an example of a response to a stimulus?The hatching of a chick out of an egg is not an example of a response to stimulus as it is a natural process of the birth of new ones.
Learn more about stimulus at
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the atomic number of rubidium is 37. if the mass number of rubidium is 85 how many subatomic particles are found inside and outside of the nucleus of the rubidium atom?
Number of particles inside Nucleus Number of particles outside Nucleus
Answer:
85 inside,37 outside
Explanation:
85 inside =37 protons and 48 neutrons
37 outside=37 electrons
Hope this helps
A process by which cells change the structure and become capable of caring out specialized functions is?
Answer: Terms in this set (12) Differentiation is the process by which cells change in structure and become capable of carrying out specialized functions.
Explanation:
google said so
The diagram shows a model of an atom. Who first proposed this model?
Answer:
D. Rutherford
Explanation:
How is a lunar eclipse similar to a solar eclipse? How are they different?
Answer:
they moon and sun are a factor in both of them
Explanation:
Answer:
From our perspective on Earth, two types of eclipses occur: lunar, the blocking of the Moon by Earth's shadow, and solar, the obstruction of the Sun by the Moon. When the Moon passes between Sun and Earth, the lunar shadow is seen as a solar eclipse on Earth. Also they are similar by An eclipse occurs when one celestial object obscures another celestial object. In the case of a solar eclipse, the moon moves between the Earth and the sun, thus obscuring the sun. A lunar eclipse occurs when the Earth moves directly between the sun and the moon. Either type of eclipse can be total or partial.
Explanation:
miss girl help- You may not have ever heard of the Inupiat, Inuvialuit, or the Gwich'in peoples, but where can you infer that they live?
Answer:
The Gwichʼin or Kutchin are an Athabaskan-speaking First Nations people of Canada and an Alaska Native people. They live in the northwestern part of North
Explanation:
True or False. An insulator has a higher resistance than a conductor.
Answer:In a conductor, electric current can flow freely, in an insulator it cannot. Metals such as copper typify conductors, while most non-metallic solids are said to be good insulators, having extremely high resistance to the flow of charge through them.
Explanation:
Answer:
True
Explanation:
they are called insulator because they insulate energy or in other word they RESIST more energy.
What would the chemical formula be of a compound that has Carbon and Oxygen in it?
CO
C2O
CO2
C2O2
Answer:
Co2
Explanation:
because if you have carbon wich is C and oxygen wich is o2 and it creates co2 carbon dioxide