Answer:
Answer 9: Oxygen is atomic number 8 on the periodic table, which means it has 8 protons!
Explanation:
Oxygen's 8 electrons are negatively charged, and they orbit the atomic nucleus and balance the positive charge of the 8 protons. The positive charge of 1 proton exactly cancels the negative charge of 1 electron.
BRAINLIST!!!!! (IF BOTH ARE ANSWERED)
Answer:
Action Force was the ball falling on the ground, the reaction force was it bouncing back up.
You see the first arrow pointing back, because the swimmer is pushing back against the wall. The second arrow would be pointing the other way, because the swimmer will extend their legs, pushing away from the wall.
Explanation:
A girl stands on a bathroom scale. In metric units, the scale indicates that her weight is 42
Newtons. This means the force of gravity is pulling her feet onto the scale with a force of 42
Newtons. With what force does the scale push back up against her feet?
Answer:
The bathroom scale pushes her back 42 metric units, the same as her weight. Newton's 3rd law says that how much ever you push onto some object, it pushes back onto you with that same amount of pressure.
Please mark me brainliest so that I get encouraged to keep up on answering these types of good answers.
________ are __________ for inherited traits.
PLSS ANSWER ASAP I BEG
Answer:
looks and cancer
Explanation:
you look like your parents and desises can be inhereted
2NH4Cl(aq) + CaO(s) —> __H2O (l) + CaCl2 (aq)
which expression completes the balanced equation?
PLZ HELP
Explain why higher temperature in a substance does not mean the substance has more thermal energy?
Answer:
Temperature is the average kinetic energy of particles of an object. Warmer objects have faster particles and higher temperatures.
Explanation:
If two objects have the same mass, the object with the higher temperature has greater thermal energy. Temperature is measured with a thermometer.
Which statement best describes the motion of
the dye molecules in the water?
The dye molecules
o move in a directed way from high to low
concentration.
o move randomly through collisions in no
particular direction.
stay close to other dye molecules as they
move through the water.
Low
Check ansive
Answer:The statement that best describes the motion of dye molecule in water is directed from a region of high to low concentration. The motion of the particles of the dye in water is described as diffusion: diffusion is the movement of molecules of a substance from one position to another.
Explanation:
Option A is correct. The statement that best describes the motion of the dye molecules in the water is "the dye molecules move in a directed way from high to low".
The motion of dye molecules in water is known to be random. Another name for random motion is Brownian motion and since diffusion is also Brownian motion, hence we can term the motion of the dye molecules in the water as "diffusion".
The water is held together by intermolecular forces and these forces are the ones that attract the molecules of the die carrying them away and making the process of molecular transport of the dye to be accelerated (moving from a region of high concentration to low concentration).
In conclusion, the statement best describes the motion of the dye molecules in the water is "the dye molecules move in a directed way from high to low".
Learn more here: https://brainly.com/question/18980315
Is acetaminophen an ionic or molecular compound? Explain your answer in complete sentences.
Answer:
Acetaminophen is a molecular compound and not an ionic compound.
Explanation:
The formula of this compound is C₈H₉NO₂. Ionic compounds are formed between metals and nonmetals. In molecular compound the bond type is covalent.
How do microorganisms influence the chemical characteristics of soil? Explain Please.
Answer:
Soil microbes are also important for the development of healthy soil structure. ... Soil microorganisms are both components and producers of soil organic carbon, a substance that locks carbon into the soil for long periods. Abundant soil organic carbon improves soil fertility and water-retaining capacity.
Explanation:
Soil microbes are also important for the development of healthy soil structure. ... Soil microorganisms are both components and producers of soil organic carbon, a substance that locks carbon into the soil for long periods. Abundant soil organic carbon improves soil fertility and water-retaining capacity.
help please
Determine whether each action will increase or reduce soil erosion.
cattle grazing
contour plowing
deforestation
hydroseeding
planting vegetation
sort into the catigories
Increse soil erosion or reduse soil erosion
Answer:a
Explanation:
John rode 3150 m at an average speed of 350 m/min.If he had ridden at average of 375 m/min instead. How much sooner would it have taken? (In seconds)
Answer:
36
Explanation:
It would have taken 36 s for John to cover the distance.
Average speed is defined as the total distance travelled divided by the total time taken.
Average speed = Total distance / total timeTo obtain the answer to the question, we'll begin by calculating the time taken to cover the distance (3150 m) in each case.
Case 1:Average speed = 350 m/min
Total Distance = 3150 m
Time 1 =?Average speed = Total distance / total time
350 = 3150 / Time 1
Cross multiply
350 × Time 1 = 3150
Divide both side by 350
Time 1 = 3150 / 350
Time 1 = 9 mins
Multiply by 60 to express in seconds
Time 1 = 9 × 60
Time 1 = 540 sCase 2:Average speed = 375 m/min
Total Distance = 3150 m
Time 2 =?Average speed = Total distance / total time
375 = 3150 / Time 2
Cross multiply
375 × Time 2 = 3150
Divide both side by 375
Time 2 = 3150 / 375
Time 2 = 8.4 mins
Multiply by 60 to express in seconds
Time 2 = 8.4 × 60
Time 2 = 504 sFinally, we shall determine how much sooner it would have taken John to travel at 375 m/min. This can be obtained as follow:
Time 1 = 540 s
Time 2 = 504 s
Difference in Time =?Difference = Time 1 – Time 2
Difference in time = 540 – 504
Difference in time = 36 sTherefore, it would have taken John 36 s if he had travelled at an average speed of 375 m/min.
Learn more: https://brainly.com/question/24435150
What periodic element is from Europe
Answer:
Europium
Explanation:
Europium
Europium was isolated in 1901 and is named after the continent of Europe.
Europium - Wikipediaen.wikipedia.org › wiki › Europium
Litmus paper, pH paper, and purple cabbage juice are all examples of ______________________. They all change colors depending on a substance's pH.
Acids
Buffers
Indicators
Bases
help me please with the connect it :,)
1. Potential
2. Potential
3. Potential
4. Kinetic
5. Kinetic (not sure)
6. Potential
7. KInetic
8. Potential
9. Kinetic
10. KInetic
11. Potential
12. Potential
How is the behavior of food coloring in the cool and heated water different? What caused the differences in their behavior?
Please don't just give the sample response.
Answer:
The food coloring mixes much faster in the hot water than it mixes with the cold water. This is because in the hot water, water molecules have more energy and are moving faster than the molecules of cold water.
screen shot attached please help fast i will give brainliest
Match the term with its description.
answer choices
Aerobic respiration
Alcoholic fermentation
Anaerobic respiration
Lactic acid fermentation
The production of energy without the presence of oxygen
A process that converts sugars into cellular energy, ethanol, and carbon dioxide
A process that converts sugars into cellular energy, ethanol, and carbon dioxide
The breakdown of food to create energy in the presence of oxygen
Answer:
Aerobic respiration is metabolic process in which food ( glucose) is metabolized ( in presence of oxygen) to derive large amount of energy ( in the form of ATP) through a series of three stages that is glycolysis, kreb cycle, and electron transport chain.
Anaerobic respiration another from of cellular respiration where food is broken down to derive energy in the absence of oxygen.
Alcoholic fermentation is a metabolic process by which sugar is converted into cellular energy ( in the form of ATP), ethanol, and carbon dioxide.
Lactic acid fermentation is a metabolic process by which glucose is converted into cellular energy and lactic acid.
Thus, the correct match is-
Aerobic respiration- A) The breakdown of food to create energy in the presence of oxygen.
Alcoholic fermentation- C) A process that converts sugars into cellular energy, ethanol, and carbon dioxide.
Anaerobic respiration- B) The production of energy without the presence of oxygen.
Lactic acid fermentation- D) A process that converts glucose into cellular energy and lactic acid.
Explanation:
Answer:
Aerobic respiration – The breakdown of food to create energy in the presence of oxygen
Alcoholic fermentation – A process that converts sugars into cellular energy, ethanol, and carbon dioxide
Anaerobic respiration – The production of energy without the presence of oxygen
Lactic acid fermentation – A process that converts glucose into cellular energy and lactic acid
view pics for proof :)
HELP PLS PLEASSEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
Okay science but it wasnt in the subjects
Can someone watch this and awnser this question
https://youtu.be/Bn41lXKyVWQ
What are the FOUR major biogeochemical cycles upon which all life depends?
__________ is an organism’s __________ or physical traits which is _________ by __________. Example: _______ _______, detached earlobes
PLSSS ANSWER ASAP I BEG PLAEASEEE
Answer:
.
Explanation:
Kiley wants to balance the equation H2 + N2 → NH3. Which would be her first step in balancing an equation?
Answer: The balanced equation will be
6H2 + N2 → 2NH3
Explanation:
First step is to balance nitrogen
ie, H2 + N2 → 2NH3
Second step is to balance hydrogen accordingly
ie, 6H2 + N2 → 2NH3
This is the perfect balanced equation.
Answer:
c
Explanation:
c
Complete the sentences to identify the difference between a nonmetal atom and its anion.
In an anion, there are more *blank* than *blank*, giving the anion a *blank* charge.
In nonmetal atoms, the number of *blank* and *blank* are the same and there is a *blank* charge.
key bank:
- a positive
- no net
- electrons
- protons
- a negative
- neutrons
Answer:
more protons than neutrons and the number of electrons and blank are blank
Explanation:
The complete sentences that distinguish the difference between a nonmetal atom and its anion are as follows:
In an anion, there are more electrons than protons, giving the anion a negative charge. In nonmetal atoms, the number of protons and neutrons are the same and there is a negative charge. What are Non-metals?Non-metals may be defined as the type of chemical element that lacks the characteristics of a metal. They do not show any metallic attributes. But in the periodic table, they range from colorless gases to shiny and high melting point solids.
In the whole periodic table, elements are classified into three parts. They are metals, non-metals, and metalloids. Each classification has its own attributes and characteristic properties.
The non-metals significantly gain electrons due to their stronger nuclear charge and become negatively charged anions.
Therefore, the complete sentences that distinguish the difference between a nonmetal atom and its anion are appropriately described.
To learn more about Non-metals, refer to the link:
https://brainly.com/question/17469010
#SPJ2
A prospector pans for gold in a stream.
Which term best describes what is in his pan when he scoops up part of the stream bed?
mixture
pure substance
compound
element
Answer:
Mixture
Explanation:
When a prospector scoops up part of the stream bed, the pan contains stream sediments.
The term that best describes what is in his pan when he scoops up part of the stream bed is the mixture. Thus, the correct option for this question is A.
What is a Stream bed?A stream bed may be defined as the strait extremity of a stream or river through which the physical confine of the normal water flow. It is a type of channel significantly occupied by a stream.
According to the context of this question, when a prospector scoops up part of the stream bed, the pan contains stream sediments, which implies that the mixture contains stream sediments or contamination.
Therefore, the mixture is the term that best describes what is in his pan when he scoops up part of the stream bed. Thus, the correct option for this question is A.
To learn more about Stream bed, refer to the link:
https://brainly.com/question/17751093
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Please Help Me!
Which metal reacts spontaneously with NiCl2(aq)?
A) Au(s)
B) Cu(s)
C) Sn(s)
D) Zn(s)
Answer:
THE answer IS B)cu(s)
Explanation:
HOPE ITS HELP
The metal reacts spontaneously with aqueous solution of NiCl₂ is Zinc as it is more reactive.
What is reactivity series?Electro chemical series is a reactivity series which tells about the reactivity of the metals present in any solution in the increasing order.
According to the reactivity series, Zinc is present at the upper position as compares to other three given metals and their reactivity will be represented as:
Zn > Ni > Sn > Cu > Au
So, zinc will replace the nickel atom from NiCl₂ solution.
Hence option (D) is correct.
To know more about electrochemical series, visit the below link:
https://brainly.com/question/14652325
identify the most widely accepted theory of solar system formation and summarize the process.
Answer all of dem Free BRAINIEST ON THE ROLL
Please answer with an actual answer and not just put a random word ^-^
Materials
large ball about the size of a basketball
small ball about the size of a tennis ball
strong light of about 100 watts or more
dark room
Directions
Place the large ball about 12 feet from the light source. Then place the small ball in the shadow of the large ball. Observe the shadow pattern.
Place the large ball in the shadow of the small ball. Observe the shadow pattern.
Questions
Which eclipse was modeled when the large ball was between the small ball and the light?
Which eclipse was modeled when the small ball was between the large ball and the light?
What does the large ball represent?
What does the small ball represent?
What does the light source represent?
Draw a picture showing a lunar eclipse.
Draw a picture showing a solar eclipse.
Upload your answers to the experiment questions and your drawings of a lunar and solar eclipse. Be sure to answer every question and use complete sentences.
Which eclipse was modeled when the large ball was between the small ball and the light?
The model is a "Lunar Eclipse" (If it was talking about the earth, then yes, it is a lunar eclipse).
Which eclipse was modeled when the small ball was between the large ball and the light?
The model is a "Solar Eclipse".
What does the large ball represent?
The earth.
What does the small ball represent?
The moon.
What does the light source represent?
The sun.
Hope this helps!~ <3
(I can't draw so sorry.)
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
How does this look? (Its for a science project about animal life
Answer:
why is there a cherry on its head?
Explanation:
You may want to add details/description to the photo as it is a little confusing
The ___ is the short form that chemists use to identify an element
Answer:
Chemical Symbols
Explanation:
Im not positive on this one so dont rely on me lol
Which statement best discribes the usual form and funtion of a plants root system
Answer:
The chemical energy is used to form ATP bonds. ... Which statement best describes the relationship between the products of photosynthesis ... Usually sap quickly covers the wound, and then the tree covers the wound with new growth
Explanation: