Isotopes of the same element have different _____. numbers of neutrons numbers of protons numbers of electrons atomic numbers
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Answer:
number of neutrons
Explanation:
Answer:
neutrons
Explanation:
i just took the test
Related Questions
I need help!!!!!!!!!!!!!!!!!!!
Answers
Answer:
I don't know the word bank, but I'll try to answer as best I can
Explanation:
1. The scientific method
2. Variables
3. Procedure
4. Replication
5. Investigation
6. Observation?
7. Hypothesis
8. I don't know, I need the word bank
9. Data
10. Conclusion
Once again, I don't have the word bank, so I don't know for sure.
Have a good day! :)
Answer:
Explanation:
what am i sopposed to do is there a word bank or anything what is the question i would be glad to help
Scientists need to learn to make arguments based on evidence. That means they back up their statements with facts that support them. Prokaryotes and eukaryotes look very different. Please make an argument based on evidence that they should both be considered cells anyways.
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All complex life on Earth is eukaryotic. All eukaryotic cells share a common ancestor that arose just once in four billion years of evolution. Prokaryotes show no tendency to evolve greater morphological complexity, despite their metabolic virtuosity. Here I argue that the eukaryotic cell originated in a unique prokaryotic endosymbiosis, a singular event that transformed the selection pressures acting on both host and endosymbiont.
The combination of massive bioenergetic expansion, release from genome-size constraints, and high mutation rate favored a protosexual cell cycle and the accumulation of eukaryotic traits. These factors explain the unique origin of eukaryotes, the absence of true evolutionary intermediates, and the evolution of sex in eukaryotes but not prokaryotes.
Help mee please (I will give the person who answers this a brainlist)
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position is location
motion is your total motion no matter what direction your moving
reference point is how far you are from where you started
distance is using a object to compare your location
It was so cold overnight that you notice the next morning that some of your friends are skating on the lake behind your house. Describe what change of state took place in the lake and how energy played a role in the change.
Answers
Answer:
The lake went from a liquid to a solid
Explanation:
Since it was so cold overnight, the temperature of the lake increased to the fact that it turned hard enough to skate on. or The temperature outside was so cold it froze the lake solid
It became so cold during the course of the night, making it hard enough just to skate on. or the lake had frozen completely due to the extreme weather outside.
What is physical state?one of the key circumstances for the existence of matter. Traditionally, matter may exist in three different states: solid, liquid, or gas. For instance, the same chemical exists in the three different states of ice, liquid water, plus steam.
Plasma, a state of matter that is electrically neutral, is frequently regarded as the final state of matter. The lake's temperature rose because it became so cold during the course of the night, making it hard enough just to skate on. or the lake had frozen completely due to the extreme weather outside.
Therefore, the lake had frozen completely due to the extreme weather outside.
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Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)
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Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome
Explanation:
rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.
Identify all the correct examples of weather
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Answer:
Here are some correct examples of weather:
Sunny and warm weatherRainy and humid weatherFoggy and cool weatherSnowy and cold weatherWindy and stormy weatherHazy and hot weatherThunderstorms and lightningHurricanes and tornadoesClear and crisp weatherOvercast and dreary weather.
Explanation:
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Never mind I figured it out. A supply of copper pipes is stored outdoors. Over the course of many years, the copper reacts with oxygen and turns green. What clue indicates a chemical reaction took place? copper reacts with oxygen
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Answer:
ok glad you got then answer right
ok I’m happy you got the answer also thx for the points
how are thing measured using the metric system
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Answer: The metric system is a system of measurement that uses the meter, liter, and gram as base units of length (distance), capacity (volume), and weight (mass) respectively. To measure smaller or larger quantities, we use units derived from the metric units.
The students need to find out things like how much matter and energy are used to make the bottles and cans.
What are two other things the students should look at before evaluating which container is better for the environment? (2 points)
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Answer:
make me brainliest pls hope it helps :)
Explanation:
dependant and independant variables
Rosa eats a peanut butter sandwich for lunch. Peanut butter contains a lot of protein, and bread is mostly starch. Rosa plans to go for a run later this afternoon. Rosa is breathing normally.What does she need from the food she ate and the air she breathes so that she can go on her run? (Sentence starter: The molecules Rosa needs from the food she eats and air she breathes are...
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Answer: What does she need from the food she ate and the air she breathes so that she can go on her run?
A. Rosa needs carbohydrates rich food (bread) to carry out her jogging activity. Protein-rich food before exercise is not recommended unless she is on a weight loss program (diet plan).
B. Rosa needs oxygen to perform aerobic respiration, which is required for maximum release of energy (36 molecules per reaction run). Anaerobic reactions yield less energy (2 molecules of ATP per reaction run) and are not recommended.
How do Rosa's body systems work together to get the molecules she needs into her cells?
Rosa's body cells need carbohydrates (glucose) and oxygen to perform aerobic respiration for the release of maximum energy. The glucose and oxygen molecules are provided to the cells via diffusion into the bloodstream. During exercise/jogging, complex molecules of carbohydrates such as starch (present in bread) are broken down into simple molecules (glucose) which are diffused into the blood. Likewise, a high amount of oxygen is provided to the body's cells via diffusion in blood, which is carried out by the faster movement of lungs and heart. The combined action results in the supply of both types of molecules to enter the cell where mitochondria use these substrates to produce energy molecules (ATPs).
How do hair cells use these molecules to release energy for her body to run?
The substrates (glucose and oxygen) enters the bloodstream and then taken up to the cell. Then they are provided to the mitochondria for the release of energy in the form of ATP. This is why mitochondria are known as the powerhouse of the cells. Within the cell, energy is released in a three-step process, i.e. glycolysis, the Krebs cycle, and oxidative phosphorylation. Here glucose reacts with oxygen. In the end, aerobic respiration per reaction run produces 36 molecules of ATP which are sufficient to meet intensive energy needs. During excrcise, the supply of oxygen and glucose is also faster due to faster lungs and heart actions.
PS: Anaerobic respiration cannot meet energy demands faster because the reaction produces only 2 ATP molecules per reaction run.
Explanation:
The molecules Rosa needs from the food she eats and air she breathes are
Food which are rich in carbohydrate to help her jog. This is because she is on a weight loss program which needs her to avoid proteinFurthermore, she would need oxygen so that she can successfully have aerobic respiration where there would be maximum release of energy to enable her complete her run better
According to the given question, we can see that Rosa wants to lose weight and she takes peanut butter which she takes and she is breathing normally which helps her perform aerobic respiration.
As a result of this, we can see that there is a need for Rosa to have the right diet which would help her with her jogging and weight loss program.
This would need foods that are rich in carbohydrate which would enable her to lose weight better and oxygen so that she could be efficient with her jogging and burn fat.
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Which statement best describes the relationship between changes in air pressure and wind speeds?
Options:
A. When a high- and a low-pressure air mass are far apart, air moves slowly from high to low pressure.
B. When a high- and a low-pressure air mass are far apart, air moves quickly from low to high pressure.
C. When a high- and a low-pressure air mass are close together, air moves slowly from high to low pressure.
D. When a high- and a low-pressure air mass are far apart, air moves quickly from high to low pressure.
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Answer:
D is the right answer
What kind of rocks would you expect to see on Mars? What evidence supports your response?
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When 500 g of water is cooled from 80.0°C to 10.0°C, how much heat energy is lost?
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I don’t know
Explanation:
If all three metals were exposed to extremely high temperatures, which would be the last to melt? (copper, gold, mercury)
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Answer:
mercury
Explanation:
From these three metals, mercury would melt the fastest. Its kinda like water, it changes states quickly unlike gold and copper
Explain how you could use the solubility of a substance to make a saturated solution.
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Answer:
Add solute to liquid until dissolving stops.
Evaporate a solvent from a solution until the solute begins to crystallize or precipitate.
Add seed crystals to a solution that is supersaturated.
Explanation:
Oil is a powerful source of energy used for cars, machines, and many other purposes. While studying sources of energy that could replace the use of oil, a student thinks about solar power, wind power, nuclear power, and electric batteries. The students asks,"Which type of source will waste the least energy and provide the most energy in all situations?"
Which best describes why a scientist would ask a different question than this one?
O The question asks about subjective personal preferences regarding energy.
O The question focuses on the objective measurements of amounts of energy.
O The question has too wide of a focus, as though all situations can be studied at once.
O The question is focused on the future and finding new answers about changing needs.
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Answer:
C
Explanation:
scientists usually focus on one specific problem, rather than a whole range. so the answer would be that it's too wide a focus.
btw this is where the crown is on the bottom of the question
Answer:
c
Explanation:
Please draw a diagram of how a magnetic field works around a magnet. Please label.
Answers
Mark me Brainly
1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL
Answers
To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.
Identify the 3 types of variables for each example experiment below, and then provide an explanation as to why you identified the variables in the way that you did. The variables include the following: independent variable, dependent variable, and the control variable.
Example 1: You would like to add some depth and charm to your garden by adding different sized plants to your garden. You’ve done some research and would love to plant chimney bellflowers because of their appeal and height. One of the questions that comes to your mind is “which brand of fertilizer to use in order to produce the tallest bellflowers?”
Example 2: Your younger brother has asked that you help him with his 5th grade science fair project. One of the areas he is interested in knowing more about is acid rain. You decide to simulate acid rain by creating an experiment that involves vinegar and limestone chips. You and your brother decide to determine if the amount of vinegar will impact limestone chip mass. You set up four different treatments. Each treatment will contain a different percentage or concentration of vinegar but with the same initial mass of limestone chips. You both make a hypothesis and discuss how it relates to acid rain together, and then illustrate the results on a trifold board.
Example 3: In your biology class, you’ve learned a lot about marine ecosystems. It has created an interest in maybe one day being a marine biologist. You’ve decided that you will design an experiment that looks at the impact of rising sea temperature on the quantity of algae in a specific ocean site. You will determine the number of algae under varying temperatures at this ocean site. You are hoping that these findings will help you become more of an advocate for marine life in this time of global climate change.
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Answers
Answer:
Example 1:
Independent variable = The brand of fertilizer
Dependent variable = The height of the chimney bellflower measured (in cm or m) using a ruler or metre stick or measuring tape etc
Control variable = The type of flower used i.e., chimney bellflower
Example 2:
Independent variable = The percentage/concentration of vinegar
Dependent variable = The (change in) mass of the limestone chips measured (in g or kg) using a scale
Control variable = The initial mass of the limestone chips
Example 3:
Independent variable = The temperature of the seawater
Dependent variable = The quantity of algae in a specific ocean site
Control variable = The ocean site and the starting amount of algae in it
Explanation:
The independent variable is the variable in an experiment that it changed e.g., in example 1 the test was about which brand of fertilizer would produce the tallest bellflowers. Therefore, to test this, you would have to experiment with different brands of fertilizers thus constantly changing it in the experiment.
The dependent variable is the variable in an experiment that is measured e.g., in experiment 2 the test was about if the mass of the limestone chips would change with different concentrations of vinegar. Therefore, to test this, you would have to measure if there was a change in the mass of the limestone chips thus making it the dependent variable
The control variable is the variable in an experiment that you keep the same e.g., in experiment 1, in order to test which brand of fertilizer produced the tallest bellflowers, you would have to keep the type of flower the same (i.e. chimney bellflowers) because that is the flower you are experimenting. It would not make sense to use a different flower since that could produce different, incorrect data
Experiments contain different types of variables. We will present you with some of the main types of experimental variables, their definitions and give you examples containing all variable types.
Types of experimental variables:
Independent variables (IV): These are the factors or conditions that you manipulate in an experiment. Your hypothesis is that this variable causes a direct effect on the dependent variable.
Dependent variables (DV): These are the factor that you observe or measure. As you vary your independent variable you watch what happens to your dependent variable.
Figure 1. Shows the relationship between the independent and dependent variable.
Extraneous variable: An extraneous varable is any extra factor that may influence the outcome of an experiment, even though it is not the focus of the experiment. Ideally, these variables won’t affect the conclusions drawn from the results as a careful experimental design should equally spread influence across your test conditions and stimuli. Nevertheless, extraneous variables should always be considered and controlled when possible as they may introduce unwanted variation in your data. In this case, you need to tweak your design and procedure to be able to keep the variation constant or find a strategy to monitor its influence (constant or controlled variables). All experiments have extraneous variables. Here are some examples of different types of extraneous variables:
aspects of the environment where the data collection will take place, e.g., room temperature, background noise level, light levels;
differences in participant characteristics (participant variables); and
test operator, or experimenter behavior during the test, i.e., their instructions to the test participants are not consistent or they give unintentional clues of the goal of the experiment to the participants.
If the density of a liquid is 5 g/mL and the mass is 65 g, what would the volume be?
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Answer:
Volume would be 13
Explanation:
Divide the mass by the density
65/5
Answer:
13 mL
Explanation:
Divide mass by density.
In humans, these organs are part of a larger system, the ________ system.
A.) Circulatory
B.) Reproductive
C.) Digestive
D.) Nervous
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c) Digestive.
The stomach, pancreas, gall bladder are all present in the digestive system.
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Which of the following best explains the relationship between peak-to-peak amplitude and semi-amplitude?
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Answer:
A. Semi-amplitude is half the distance of the peak-to-peak amplitude
Explanation:
The correct answer is : The semi-amplitude is half the distance of the peak-to-peak amplitude (option A). The peak-to-peak amplitude is the total distance between the highest positive peak and the lowest negative peak in a waveform. It represents the full range of variation in the amplitude of the waveform.
The peak-to-peak amplitude of a waveform is the measurement of the total distance between the highest positive peak and the lowest negative peak. It provides information about the full range of variations in the amplitude of the waveform. Mathematically, it is calculated by subtracting the minimum value from the maximum value of the waveform.
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Microwaves have a higher _____________ than radio waves. Different ______________ of microwaves provide different information to scientists. Most microwaves are used in ___________________________.
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Answer:
Radio waves are electromagnetic waves within the frequencies 30KHz - 300GHz, and include microwaves. Microwaves are at the higher frequency end of the radio wave band and low frequency radio waves are at the lower frequency end.
Explanation:
hope this helps and i hope i can please get brainliest
Answer:
hi kirishima it is me 0412919
Explanation:
i will give u brainly :D
Which phases does water go through if you use distillation to separate it from dissolved sugar?
Answers
Answer:
a physical change
Explanation:
here's why a chemical change produces new chemical products in order for sugar and water to be a chemical change something new would need to resolve a chemical reaction would have to occur
1. the rate of change in an object's position over time is called what
2. the type of energy that is the sum of kinetic and potential energy at any given time is what
3. A push Or pull that can change the motion of an object (examples: magnetic force, frictional force. Please Help me this is due tomorrow
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Answer: 1 . velocity 2. total mechanical energy. 3. magnetic force
Answer:
1. Rise over run, slope, or velocity
2. Mechanical Energy
3. Temperature
It is a broad question
What is the gravitational potential energy (GPE) of the 2 kg bowling ball as it sits on top of the building 40 meters high?
Use this formula: GPE=m(9.8m/s²)h
Potential Energy (GPE) is measured in Joules (J)
Mass (m) is measured in kilograms (kg)
Height (h) is measured in meters (m)/
A) GPE = 9.8 x 40 = 392 J
B) GPE = 2 x 40 = 80 J
C) GPE = 40 / 2= 20 J
D) GPE = 2 x 9.8 x 40 = 784 J
Answers
Answer:
To find the gravitational potential energy (GPE) of the 2 kg bowling ball as it sits on top of the building 40 meters high.
Use the GPE equation: GPE = mgh, where m is the mass of the object, g is the acceleration due to gravity, and h is the height of the object. In this case, m = 2 kg, g = 9.8 m/s2, and h = 40 m, so GPE = 2 x 9.8 x 40 = 784 J.
What is the charge on the Cr in Cr2O72-
Answers
Answer:
+6.
Explanation:
So, a chromium atom here has an oxidation number of +6.
How can I associate Newton's three laws in the phenomenon?
Answers
Answer: In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.
Explanation: hope it helped
What is the main purpose of the concentration gradient and why is it vital to the process of osmosis?
Answers
Answer:
The osmotic gradient is the difference in concentration between two solutions on either side of a semipermeable membrane, and is used to tell the difference in percentages of the concentration of a specific particle dissolved in a solution.
Explanation:
I hope this helps!
haii i hope your doing great!
i need helpp:)
Answers
!let me know if I'm wrong bc im a little rusty!