Answer:
by adding magnesiem sulphate to the magnet
Calculate the ratio of H+ ions to OH– ions at a pH = 6. Find the concentration of H+ ions to OH– ions listed in Table B of your Student Guide. Then divide the H+ concentration by the OH– concentration. Record this calculated ratio in Table A of your Student Guide.
What is the concentration of H+ ions at a pH = 6? mol/L
What is the concentration of OH– ions at a pH = 6? mol/L
What is the ratio of H+ ions to OH– ions at a pH = 6? :1
Answer:
1:1 ratio
Water (H2O) splits into Hydrogen Ions (H+) and Hydroxyl Ions (OH-). When there are equal parts of Hydrogen Ions (H+) and Hydroxyl Ions (OH-) leading to a 1:1 ratio, pH is neutral (7).Explanation:
The concentration of H + ions at pH 6. The concentration of H + can be deduced by the formula pH = - log H + ==> H + = 10 ^ (- pH) ...
Concentration of -OH at pH 6. The concentration of -OH can be calculated from pOH: pOH = 14 - pH = 14 - 6 = 8. ...
Calculation of the ratio H + / -OH:
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1. What is a nebula?
2. What effect might a supernova have had on the material in a nebula that led to the creation of our solar system?
3. Does nuclear fusion combine or break apart hydrogen (H) atoms to form helium (He) atoms? Does nuclear fusion release or
absorb energy?
4. What percentage of the matter in the solar system does the sun contain? What does that statistic tell you about our sun?
5. What role did gravity play in the formation of the solar system?
How would you describe the appearance of the substance before the phase change?
The appearance of the substance before the phase change can be described as Melting, Vaporization, Sublimation, Condensation.
Melting:
When a substance converts from the solid to the liquid.
Vaporization:
The substance changes from a liquid to a gas.
Condensation:
When a substance converts from a gas to a liquid.
Sublimation:
When a substance converts directly from a solid to a gas without going through the liquid phase.
Therefore, the appearance of the substance before the phase change can be described as Melting, Vaporization, Sublimation, Condensation.
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Answer:
Its good
Explanation:
1. write a sentence that describes how the food changes in the stomach.
2. write a sentence that describes how the food changes in the small intestine.
3. explain what happens to digested food in the small intestine
4. write a sentence that describes what happens to digested food in the cell.
Answer:1.Once filled with food, the stomach grinds and churns the food to break it down into small particles. It then pushes the small particles of food into the first part of the small intestine, called the duodenum. The small intestine is where most of the digestion and absorption of our food takes place.2.The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine and push the mixture forward to help with further digestion. The walls of the small intestine absorb the digested nutrients into the bloodstream. The blood delivers the nutrients to the rest of the body.3.The small intestine absorbs most of the nutrients in your food, and your circulatory system passes them on to other parts of your body to store or use. Special cells help absorbed nutrients cross the intestinal lining into your bloodstream.4.The small intestine absorbs most digested food molecules, as well as water and minerals, and passes them on to other parts of the body for storage or further chemical change. Specialized cells help absorbed materials cross the intestinal lining into the bloodstream.
Explanation:
Which of the following would have the MOST thermal energy
cup of hot soup
mug of warm coffee
bowl of cold soup
bathtub full of warm water
PLEASE HELP WILL GIVE 30 POINTS IM DESPERATE PLEASE HELP ASAP!!!!
The temperature of the areas surrounding Kochi before each storm was about 10°C and there was the same amount of water vapor in the air. Given this information, which storm do you predict will have the most rainfall and why?
After Michelle went on vacation for two weeks, she came home to find her potted plants had turned brown and died. The soil was very dry. While Michelle was away, she kept the curtains and windows closed and did not have a neighbor come by to water her plants. Michelle now realizes that she will have to do things differently the next time she is away for several days if she wants to keep her plants alive. Why is it important for Michelle to make sure her plants have their needs meet while she is away?
A.
She needs to make sure the plant receives water, sunlight, and air. Plants need all components to make their own food.
B.
She needs to be sure to put plant food in the pot. Plants need to be feed because they do not make their own food.
C.
She needs to add a lot of water to the pot before leaving. Plants only need moist soil to make their own food.
D.
She needs to keep the curtains open or set the plant outside. Plants only need sunlight to make their own food.
Answer:
A
Explanation:
The explanation lies in the answer. Plants need all components to make their own food.
Answer:
The answer is A
Explanation without one of the components life for the plants are not possible.
How many molecules of the compound are there?
____ is the study of a reactions progress over a period of time.
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Go around your house and hit (or tap) ten different objects. The objects should be different shapes and made of different material (choose things to hit that won’t break!). Each object is a different medium for sound. Try to hit each using the same amount of energy.
Describe each object that you hit and the sound it made.
Rank the ten objects from loudest to softest.
Make some conclusions based on your results from Steps 1 and 2. For example, are there a certain shapes or materials that are better or worse media for sound travel?
Stairs, wall, door, window, picture, floor, desk, backpack, paper, bed all of these produce different sound.
What is sound?Sound is defined as an acoustic wave is a vibration that travels through a gas, liquid, or solid transmission medium. In terms of human physiology and psychology, sound is the brain's receipt of these waves and perception of them. A mechanical disturbance that causes an equilibrium condition to be disturbed and propagates through an elastic material medium.
The vibration of items creates sound, which travels from one place to another through a medium. Vibration is the phrase used to describe an object's to-and-fro or back-and-forth motion. Vibrations are generated by objects in motion.
Thus, stairs, wall, door, window, picture, floor, desk, backpack, paper, bed all of these produce different sound.
To learn more about sound, refer to the link below:
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HEllp no links no i dont knows and no hfdifewbhelr
Answer:
second answer
Explanation:
The melting point would occur more quickly but stay the same.
So it is answer 2
Imaging playing a game of baseball on the moon, which has less gravity than Earth and no atmosphere. How would you want to change the game to make it play fairly and fun again?
A technique to change the game to make it play fairly and fun again is to deflate the ball in an attempt make it less bouncy.
Discussion:
A characteristic of the baseball game is that the baseball is less bouncy in comparison to other sports like football and basketball.
When the baseball game is played on the moon with a less gravity; the ball tends to ascend more as the force of gravity is lower compared to that of the earth.
Ultimately, lowering the air pressure in the baseball makes the ball less bouncy and the game may become fun to play again.
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am i right?
Answer:
A because it is one big piece b is broken into 4 pieces so the answer is A
Explanation:
CORRECT ANSWER GETS BRAINLIEST!!!!!!!!!!!!
Answer:
2, 4, 1, 3, 5
Explanation:
i believe is this a test
please mark this answer as brainlest i got the answer from someone by the way which is my sis
but forget all of that
please mark brainlest
I NEED THIS ASAP ILL GIVE BRAINLIEST
Color is everywhere in nature. The arrows in the image model the wavelengths of visible light. Compare how the incoming colors of light behave when they encounter the kittens black fur, it’s white fur, the green grass, and the yellow dandelion
Nitrogen has five valence electrons. For this reason, it often bonds to gain three electrons. Based on the arrangement of the elements in the periodic table, which other element most likely shows similar behavior ?
Select one :
A || carbon
B || oxygen
C || phosphorus
D || neon
Please help if you can.
Answer: i thought i knew but nver mind but on the last won it is c i belive
Explanation:
What is the rock’s velocity when it reaches the bottom? How do you know?
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Describe the relationship between the three processes important to sedimentary rock formation: deposition, compaction and cementation.
and
How do you think the formation of fossils in sedimentary rock disrupts or alters the process of sedimentary rock formation? In other words, how does the formation of a fossil fit into the process of sedimentary rock formation? Defend your answer.
Answer:
I can't help sorry
Explanation:
Answer:
Sedimentary rocks are the product of 1) weathering of preexisting rocks, 2) transport of the weathering products, 3) deposition of the material, followed by 4) compaction, and 5) cementation of the sediment to form a rock. The latter two steps are called lithification.
Explanation:
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How many atoms of Pb are there?
Answer:
There are 2 atoms of Pb.
Explanation:
There are 2 atoms of Pb, 8 atoms of Br.
Answer:
2
Explanation:
A mutation occurs whenever one of the bases in DNA is changed. What letters represent those bases?
(OMG PLEASE HELP ASAP!!:c)What is the major function of proteins in cells?
1.They contain the instructions for the cell to carry out all the functions of life
2.They provide components of cell membranes and organelles and speed up chemical reactions
3.They provide energy and components of cell walls and cell membranes They provide energy and components of cell walls and cell membranes
4.They store energy and provide certain components of cell membranes
Answer:
1. They contain the instructions for the cell to carry out all the functions of life.
Explanation:
Proteins are responsible for nearly every task of cellular life, including cell shape and inner organization, product manufacture and waste cleanup, and routine maintenance.
^--------------- What the person above me said
Balance this equation: CH4 +2O2--------> ___ CO2 + ___ H2O
a-1 CO2 + 1H2O
b-1 CO2+ 2H2O
c-2 CO2 + 1H2O
d-2CO2 + 2H2O
Answer:
b-1 CO2+ 2H2O
If there was no sunlight, would there be more or less carbon in biotic matter?
Name the correct name of each plate with the numbers above.
Answer:
1. Asia
2. Africa
3. Antarctica
4. Australia
5. Pacific Ocean
6. North America
7. South America
Explanation:
Answer:
Brainlest plz
Explanation:
1.Eurasian Plate
2.East African Rift or the Nubian plate
3. Antarctic Plate
4. Indo-Australian Plate
5. The Pacific Plate
6. North American Plate
7.Nazca Plate
Diagrams A-D show the sequence of changes in a pond.
1. Look at each stage of ecological succession. Describe your observations for each stage.
a)
b)
c)
d)
2. Based on your observations, what is the sequence of steps in the illustrated ecological sequence?
3. Predict what will happen to the pond.
the answer is a (A) number
Cup A and Cup B are sturdy plastic and contain 100 grams of water. Cup A is 40 degrees Celsius and Cup B is 24 degrees Celsius. If a student pours the water from cup A into B, which statement is true?
a- Cup A water particles will transfer cold to Cup B particles.
b- Cup A water particles will transfer kinetic energy to Cup B water particles.
c- Cup B water particles will transfer cold to Cup A particles.
d- Cup B water particles will transfer kinetic energy to Cup A particles.
The atoms in the diagram above are...
sharing pairs of valence electrons.
losing valence electrons.
transferring valence electrons.
pooling valence electrons.
Answer:he electron dot diagram is a diagram that uses dots as a symbol for an atom's valence electrons and can tell you how many bonds an atom can form. It arranges electrons as dots.
Explanation:is this it
1. The strength of the gravitational force between two objects depends on which of the following?
o the mass of the larger object
the velocities of the objects
the orbits of the objects
o the mass of the objects and the distance between them
Answer:
D
Explanation:
The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them. This means that the force of gravity increases with mass, but decreases with increasing distance between objects.
Answer:
Newton's law likewise expresses that the strength of gravity between any two items relies upon two factors: the majority of the articles and the distance between them. Articles with more prominent mass have a more grounded power of gravity between them.
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