Consider the nuclear equation below. Superscript 235 subscript 92 upper U right arrow superscript 4 subscript 2 upper H e. What is the nuclide symbol of X? Superscript 231 subscript 94 upper P u. Superscript 235 subscript 90 upper T h. Superscript 239 subscript 94 upper P u. Superscript 231 subscript 90 upper T h.
Answers
Answer:
\(\rm_{90}^{231}\text{Th}\)
Explanation:
The unbalanced nuclear equation is
\(\rm _{92}^{235}\text{U} \longrightarrow \, _{2}^{4}\text{He} + X\)
Let's write X as a nuclear symbol.
\(\rm _{92}^{235}\text{U} \longrightarrow \, _{2}^{4}\text{He} + _{Z}^{A}\text{X}\)
The main point to remember in balancing nuclear equations is that the sums of the superscripts and of the subscripts must be the same on each side of the reaction arrow.
Then
235 = 4 + A , so A = 235 - 4 = 231, and
92 = 2 + Z , so Z = 92 - 2 = 90
And your nuclear equation becomes
\(\rm _{92}^{235}\text{U} \longrightarrow \, _{2}^{4}\text{He} +\, _{90}^{231}\text{X}\)
Element 90 is thorium, so
\(\rm X = _{90}^{231}\text{Th}\)
Answer:
its d
Explanation:
edg
Related Questions
I need help this is due tomorrow
Answers
Answer:
it's spring tide.
Explanation:
The smallest tidal ranges are less than 1 m (3 feet). The highest tides, called spring tides, are formed when the earth, sun and moon are lined up in a row. This happens every two weeks during a new moon or full moon. Smaller tides, called neap tides, are formed when the earth, sun and moon form a right angle.
Hope it will help :)❤
Describe the chemical reaction based on the chemical equation below. Also, explain whether the equation is balanced.
Answers
I don't see any chemical Equation
(Mark as Brainiest)
Answer:u dont have no picture ofbit u need to show us whst it is
Explanation:
Ong ohoje is glitch ant type hate when it do thsi
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
Answers
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
Where is the DNA stored in a cell?
Answers
Answer: nucleus
Explanation:
What are all the breeds of dogs and how many breeds of dogs are there?
Answers
Answer:
In the United States alone, the AKC's dog breed list currently includes 190 dog breeds. Worldwide, the FCI lists 360 officially recognized breeds.
Explanation:
There are approximately 400 separate breeds of purebred dogs worldwide. A purebred dog is considered to be one whose genealogy is traceable for three generations within the same breed
There are currently more than 340 different breeds of dogs recognised throughout the world.
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.
Using the diagram below, how would you best explain what is occurring at number 3?
(scroll to see the diagram)
It is water droplets that have condensed on dust particles in the process of condensation.
It is rainfall that is not absorbed into the soil and travels back to sea as surface runoff.
It is the process by which liquid changes into a gas through evaporation.
It is the process of ground water where the water has soaked into the ground.
Answers
Answer:
At number 3 i would say it is It is rainfall that is not absorbed into the soil and travel to sea as surface runoff.
Explanation:
Need a Hint?: After precipation occurs, a cycle known as surface runoff takes the water from the preciptation back into the ocean
(I have a feeling this is right, because I remember from my past education when my teacher talked about the water cycle. Hope this helped)
What are the physical properties of the cookie/cracker? List 3 or more.
Answers
Answer
cookie
shape:circle
texture: bumpy rough on side
color:brown
size: bigger than a quarter
Explanation:
I cant see it so just describe the color shape size texture
Answer:
1. Delicious
2. Soft
3. Cronchyy (ik its crunchy )
4. Best foods you will ever eat
Explanation:
Try it for yourself!
Michael wants to know how different temperatures affect the growth rate of a bean plant. To make sure he has accurate and valid results he uses the same species of plants, amount of water, soil and pots. He observes the growth over a period of five days.
What is the test/independent variable in this investigation?
Answers
Answer:
This is the biology Study Island Scientific Investigations with all of the ... Tap again to see term ... She is planning on exposing frogs of the same species to different amounts of the ... Tyler wants to know how the growth of tomato plants is affected by the ... He hypothesizes that the plants will grow best in sandy soils.
Explanation:
Answer:
B
Explanation:
you always need all of them to be equal for it to ACTUALLY make sense.
hope this helped!!!
You are given an unknown substance, which may be an acid or a base or may be neutral. To determine which, you will need to test for specific properties. Select the laboratory equipment below that would help classify this substance.
Answers
Inappropriate equipment-magnet, hot plate, beaker of water, conductivity tester, and balance
To determine the need to test for specific properties the equipment used is litmus paper.
What are specific properties?Specific properties are defined as a features of a material are generated from its other extensive and intensive properties. The uses of specific properties are Ranking, Classifying, and Comparing: Specific features can be used to compare two attributes while reducing the impact of differences in a third attribute.
Litmus paper is defined as a kind of paper that can be used to detect acidity because it changes color in relation to how acidic the solution it is dipped in is. As blue litmus paper turns red under acidic conditions, and red litmus paper turns blue under basic or alkaline settings, the primary application of litmus is to evaluate whether a solution is acidic or basic.
Thus, to determine the need to test for specific properties the equipment used is litmus paper.
To learn more about specific properties, refer to the link below:
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How does Earth’s rotation affect the global pattern of prevailing winds? Explain your reasoning using evidence
Answers
Answer:the air deflects toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere, resulting in curved paths.
Explanation:
Write a summary of what you have learned about how incoming forces and outgoing forces are related (newton's cradle)
Answers
The relationship between incoming and outgoing forces in Newton's Cradle can be understood through the following concepts:
Conservation of Momentum: In a closed system with no external forces, the total momentum before a collision is equal to the total momentum after the collision. In Newton's Cradle, the momentum of the incoming ball is transferred through the stationary balls and eventually to the last ball, which swings outward with a momentum equal to the initial ball's momentum.
Conservation of Energy: Similarly, the total mechanical energy (kinetic and potential) in a closed system remains constant. In the context of Newton's Cradle, the kinetic energy of the incoming ball is transferred through the stationary balls, and eventually to the last ball, which swings outward with kinetic energy equal to that of the incoming ball. Potential energy is also involved as the balls swing and momentarily come to rest at their highest points.
Elastic Collisions: Newton's Cradle demonstrates nearly perfect elastic collisions, wherein both momentum and kinetic energy are conserved. In reality, some energy is lost to heat and sound, making the collisions slightly inelastic. However, the demonstration is still a useful approximation for understanding the transfer of forces.
Force Transfer: The incoming force exerted by the first ball is transmitted through the intervening balls to the last ball without causing any significant movement of the middle balls. This occurs because the balls are very close together and the time taken for the force to be transferred is minimal, allowing the middle balls to remain nearly stationary.
In summary, Newton's Cradle demonstrates the relationship between incoming and outgoing forces through the principles of conservation of momentum and energy, elastic collisions, and force transfer. The device provides a clear visual representation of these fundamental concepts in physics.
help me whith this
Describe the processes of photosynthesis
Answers
sun light, water, & carbon dioxide turn into glucose-sugar and oxygen
Which metallic substance would require the least amount of thermal energy to melt?
A. Gold
B. Nickel
C. Aluminum
D. Steel
Answers
Answer: C (Aluminum)
Explanation:
Aluminum would require the least amount of thermal energy to melt, because according to the chart, it has the lowest melting point (1218ºF) as compared to the melting points of Gold (1945ºF), Nickel (2646ºF), and Steel (2500ºC).
what does chemlcal change mean
Answers
Answer:
a chemical change is a change that changes the substance into a whole new substance.
Examples include: burning wood, a banana peel rotting, milk souring, and even your food/drinks digesting.
Before there is a transfer of charges between objects, they are uncharged. What does this mean?
There are more positive charges than negative charges.
There are more negative charges than positive charges.
The positive and negative charges are equal.
The positive and negative charges do not exist.
Answers
Answer:
The positive and negative charges do not exist.
Explanation:
The objects are uncharged, therefore there is no positive and negative charges.
The positive and negative charges do not exist because they never had a charge in the first place
What is your carbon footprint?
A: the amount of carbon dioxide you use when recycling
B: the amount of oxygen put into the atmosphere due to your consumption of fossil fuels
C: the amount of carbon dioxide and oxygen in the atmosphere at any given time
D: the amount of carbon dioxide put into the atmosphere due to your consumption of fossil fuels
Answers
Answer:
D
Explanation:
According to WHO, a carbon footprint is a measure of the impact your activities have on the amount of carbon dioxide (CO2) produced through the burning of fossil fuels and is expressed as a weight of CO2 emissions produced in tonnes.
How can the rate of a reaction be decreased?
Responses
A: having more surface area
B: lowering the amount of reactants
C: adding a catalyst
D: raising the temperature
Answers
Which items are biomass energy sources? Select all correct answers.
the sun
wood chips
manure
paper
Answers
Answer:
wood chips, paper, and manure are biomass energy sources.
Explanation:
Biomass energy is energy generated or produced by living or once-living organisms.
Wood chips, paper, and manure are biomass energy sources. The primary form of energy from renewable sources that can be utilised to replace fossil fuels on a long-term basis is biomass.
Energy created or generated by living or formerly living creatures is known as biomass energy. Plants like the aforementioned maize and soy are the most prevalent types of biomass that are utilised for energy. These creatures' energy may be used to generate electricity or be burnt to provide heat. Direct combustion is the primary method of producing most of the power from biomass. In a boiler, biomass is burnt to create high-pressure steam. These turbine blades revolve as a result of the steam flowing over them. Wood chips, paper, and manure are biomass energy sources.
To know more about biomass energy, here:
https://brainly.com/question/32175810
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if i have 17 apples and i eat 17 apples how many pears do i have?
Answers
Answer:
If you eat all 17 apples, you will not have any apples left. However, the number of pears you have is not related to the number of apples you ate. So, the number of pears you have is unknown and not affected by the number of apples you ate.
Question This is a Science Test 15 POINTS OR MORE POINTS!
The following picture contains four beakers with four different colored solutions, light blue to dark blue. Which solution is the most concentrated?
A. the second solution from the left
B. the first solution (left-most)
C. the fourth solution from the left (right-most)
D. the third solution from the left
Answers
Answer:
darker means more concentrated!!
the answer is d
Explanation:
EX:the more color you put in frosting the darker it gets
pls answer the question plss
Answers
In YOUR OPINION, should the United States try to reduce the amount of nonrenewable resources we use to produce electricity? Why?
Answers
Answer: Yes because nonrenewable resources will eventually run out and we can transition into a new era of renewable resource use. This transition would also benefit the environment.
Explanation:
this is a in your opinion question so i just gave a basic answer of what i think
Answer:
Yes because renewed sources will eventually run out
Explanation:
Which resulted from the study of chemistry?
A) Alchemy to turn base metals into noble metals
B) the understanding of earth, air, fire, and water as the basic components of matter.
C) discovering the role of oxygen in combustion
D) a supernatural, mystical view of the world
Answers
Which of these can be combined to make a mixture?
a. solid and a liquid
b. two solids
c. two liquids
Answers
Answer:
c
Explanation:
you cant mix a rock and a rock together and expect to get a mixture
and you cant mix a rock and water and expect them to mix
so its on logical that it is two liquids
Use the picture below to answer the question.
Comparing the two waves, wave B has a...
A) higher frequency.
B) greater amplitude.
C) shorter wavelength.
D) longer wavelength.
Answers
Answer: D) longer wavelength.
Explanation:
As far as I know, you calculate frequency on a graph using the number of peaks you can see. Since the wavelength is shorter (the distance between two peaks on the wave), the frequency should also be higher as more fit on the graph.
A mutation occurs whenever one of the bases in DNA is changed. What letters represent those bases?
Answers
C: cytosine
g: guanine
t: thymine
The density of gold is 19.3 g/cm3. What is the volume of a 13 g gold nugget? (Density: D = )
.25 cm3
.67 cm3
1.48 cm3
2.50 cm3
Explain how you found your answer
Answers
V = 13/19.3
V = 0.67
Using the data on the map, compare the chance of precipitation in Colorado to the
chance of precipitation in New York State. Include both states in your answer and
support your answer with scientific reasoning.
Answers
Can someone answer the questions from the documents?
Answers
Answer:
no,because the documents tells us about that subject and explain about information