The surface area of a 2 cm x 2 cm cube is 24 cm2. If the 2 cm x 2 cm cube is cut in half, what is the sum of the surface area for both halves and how would it affect the rate of a chemical reaction?
Answer:When the concentrations of the reactants are raised, the reaction proceeds more quickly. This is due to an increase in the number of molecules that have the minimum required energy. For gases, increasing pressure has the same effect as increasing concentration.
When solids and liquids react, increasing the surface area of the solid will increase the reaction rate. A decrease in particle size causes an increase in the solid’s total surface area.
Raising the reaction temperature by 10 °C can double or triple the reaction rate. This is due to an increase in the number of particles that have the minimum energy required. The reaction rate decreases with a decrease in temperature.
Catalysts can lower the activation energy and increase the reaction rate without being consumed in the reaction.
Differences in the inherent structures of reactants can lead to differences in reaction rates. Molecules joined by stronger bonds will have lower reaction rates than will molecules joined by weaker bonds, due to the increased amount of energy required to break the stronger bonds.
Explanation:
The league mean batting average is 0.280 with a known standard deviation of 0.06. The Rattlers and the Vikings belong to the league. The mean batting average for a sample of eight Rattlers is 0.210, and the mean batting average for a sample of eight Vikings is 0.260. There are 24 players on the Rattlers and 19 players on the Vikings. Are the batting averages of the Rattlers and Vikings statistically different? Explain in detail and show your steps here
Answer:
ummm
Explanation:
Which of the following is not an effective study strategy?
A) spacing.
B) interleaving
C) practice testing
D) All of the above.
C) None of the above.
Methods of study which improves an individual's understanding and retention are said to be effective. Hence, from the options given, interleaving does not seem to be an effective.
Spacing encourages long hours of study in other to grasp the root of a concept rater than trying to memorize or cram the notes within a short period.
Practice testing is used to evaluate one's ability or grasp of the information by testing one's knowledge using tentative exercises.
Interleaving involves mixing or studying more than one subject or knowledge domain at a time. In most cases, these concept leads to confusion and might work for others.
Therefore, the most appropriate option is B.
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¿Qué realidades se ven representadas en la película? Anotalas para, en unos días, debatir en clase acerca de los problemas que se exponen.
Describe the functions and origin of mass communication.
A grocery store is selling 6 cans of cat food for $3. Write and solve a multiplication equation to find the cost of a can of cat food.
The cost of one can of cat food is 2 $
The cost of one can of cat food is 120$
The cost of one can of cat food is 16 $
Answer:
A
Explanation:
What kinds of changes in other populations of organisms could be affecting the moths?
Answer:
I don't know-how I missed your call I was just wondering if you have any questions please feel
He could not understand Della’s _________, her constant locking of doors and windows as if to protect herself from some __________ threat.
paranoia .. unspecified
glee .. manifest
actions .. global
kindness .. imminent
candor .. qualified
(2x+5)(-mx+9)=0
In the equation above, m is a constant. If the equation has the solutions x=-5/2 and x=3/2, what is the value of m
1. Which of the following is the best example of cultural diffusion?
Answer:
The third choice
Explanation:
Cultural diffusion involves the spread of one's culture to other places with different cultures. The third choice is the best option because the migrant's foreign cultural food is spreading to the US.
The best option is third because the migrant comes to the US and open serving his or her home country cuisine and people flock to the restaurant.
What is Cultural diffusion?The cultural diffusion refers to basically other's cultural's foods/social activities being in another country that is not their own.
WE have example ;
1. Car Demolition racing in Japan
2. Thai restaurant in Switzerland
And which is not a cultural diffusion is a Hamburger restaurant in New York because there are so many there.
Cultural diffusion involves the spread of one's culture to other places with different the help of cultures.
Therefore, the best option is third because the migrant's foreign cultural food is spreading to the US.
The migrant comes to the US and open serving his or her home country cuisine and people flock to the restaurant.
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These two right cylinders have the same height, 25 centimeters. The radius of the smaller cylinder is 5 centimeters and the radius of the larger cylinder is 3 times greater than that of the smaller cylinder. What is the ratio of the volume of the larger cylinder to the volume of the smaller cylinder? A. 6:1 B. 12:1 C. 9:1 D. 25:1
9514 1404 393
Answer:
C. 9:1
Explanation:
The volume is proportional to the square of the radius. When the ratio of radii is 3 : 1, the ratio of volumes is 3^2 : 1^2 = 9 : 1.
Answer:C! 9:1
Explanation:
patient has been eating healthy foods, but her respiratory system is not working as well as it usually does. Can this patient still exercise normally?
Answer:
i hope this is helpful..
Explanation:
a patient has been eating healthy foods, but her respiratory system is not working as well as it usually does. ... Yes, her body can get everything it needs for energy from molecules in food. No, her respiratory system does not have enough oxygen to combine together to release energy.
Generally speaking, keep in mind that
A) different kinds of tests may require different study strategies.
B) relying on a method of study that youâ ve used successfully in the past is usually a good idea.
C) your professors preferred teaching and learning style should have little or no effect on your study strategies.
D) All of the above.
E) None of the above.
Answer:
A,
A) different kinds of tests may require different study strategies
Generally speaking, keep in mind that A) different kinds of tests may require different study strategies.
The Four Factors of Speaking Skills
Vocabulary.Grammar.Pronunciation.Fluency.What are 5 basics of speaking skills?These 5 talents are absolutely necessary for successful communication in the workplace or private life.
Hearing. Listening is one of the most critical aspects of communicationHonestly talkingNon-verbal communication.Stress managementEmotion control.To learn more about speaking skills, refer
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___ is paid or unpaid temporary that allows someone to learn about a particular company
Answer:
internship
...................
Answer:
Internship
Explanation:
I need help ASAP I’m having troubles on galaxys :P
Answer:
dust, 100 thousand million stars
Q: Which component of a galaxy is often found between the stars and looks like a cloud or smoke?
A: A Dust
A bureaucrat Who had no help with dancing professionally still follow every rule even want to slow down his work and personal growth according to strain theory which type of deviance does his behavior illustrate
Answer:
rulism. have fun, stay safe and send it.
Explanation:
how do you make soul food im white by the way
Answer:
buy some chicken and mac and cheese green beans and corn flour the chicken if you don't have a fryer buy one and season the green beans with minced garlic adobo seasoning garlic salt and you can free style on the fried chicken but you have to put chicken buoillon
If 2x – 1 = 9, what is 10x – 5?
Answer:
45
Explanation:
2x-1=9
+1
2x=10
÷2
x=5
10(5)-5
50-5=45
hope it helps :)
brainlist pls
Answer:
45
Explanation:
First we find the value of x, i.e.
2x – 1 = 9,
=> 2x = 9 + 1
=> 2x = 10
[tex] = > x = \frac{10}{2} [/tex]
=> x = 5
As we have got the value of x so now,
10x – 5
= (10 × 5) - 5
= 50 - 5
= 45 (Ans)
The ATT Building (IE Batman Building) in Nashville is 614 feet tall. A model of the building is 60 inches tall. What is the ratio of the height of the model to the height of the actual ATT Building?
Answer:
Ratio of height of model to height of the actual Building = 5 : 614
Explanation:
Given:
ATT Building height = 614 feet tall
Model of building = 60 inches tall
Find:
Ratio of height of model to height of the actual Building
Computation:
ATT Building height = 614 feet tall = 614 x 12 = 7,368 inch
Ratio of height of model to height of the actual Building = Model of building / ATT Building height
Ratio of height of model to height of the actual Building = 60 / 7,368
Ratio of height of model to height of the actual Building = 5 : 614
The Ratio of the height of the model the actual ATT Building is 5 / 614
Equation
An equation is an expression used to show the relationship between two or more numbers and variables.
12 inches = 1 feet.
Height of model = 60 inches = 60 in. * 1 ft. per 12 in. = 5 ft.
Ratio of the height of the model the actual ATT Building = 5 / 614
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On a certain hot summer's day, 185 people people used the public swimming pool.The daily prices are $1.25 for children and $2.00 for adults. The receipts for admission totaled $335.50.How many children and how many adults swam at the public pool that day?
Answer: 139 adults and 46 children. Did you not get this? I'm in 8th grade!!!!!!!
Explanation: a=adults, c=children
Rewrite equations:
a+c=185
2a+1.25c=335.5
Step: Solve a+c=185for a:
a+c=185
a+c+−c=185+−c (Add -c to both sides)
a=−c+185
Step: Substitute −c+185 for 'a' in 2a+1.25c=335.5:
2a+1.25c=335.5
2(−c+185)+1.25c=335.5
−0.75c+370=335.5 (Simplify both sides of the equation)
−0.75c+370+−370=335.5+−370 (Add -370 to both sides)
−0.75c=−34.5
−0.75c
−0.75
=
−34.5
−0.75
(Divide both sides by -0.75)
c=46
Step: Substitute 46 for 'c' in 'a' =−c+185:
a=−c+185
a=−46+185
a=139(Simplify both sides of the equation)
Answer:
a(adults)=139 and c(children)=46
Suppose that 55% of the approximately 4,000 school-aged children in the county have vitamin deficiency.
A nutritionist takes a cluster random sample of 100 those children. They test the children for vitamin
deficiency. They provide the children with vitamin-rich snacks at school for three months, then retest them.
They plan to look at the difference (after – before) between the proportions of children with vitamin
deficiency.
Consider the formula:
OPA-PB =
PA (1 - PA) PB (1 - PB)
+
пA
пр
Why is it not appropriate for the nutritionist to use this formula for the standard deviation of PA - PB?
Choose 1 answer:
The samples are not independent of each other.
We cannot assume independence for the students sampled before receiving the snacks.
We cannot assume independence for the students sampled after receiving the snacks.
Answer: A
The samples are not independent of each other.
Explanation: Khan Answer
They are testing the same sample of students both times. Results from the first test would likely give us information about the results from the second test.
The F-test is used to determine whether the variances of two populations are equal (Snedecor and Cochran, 1983). It is possible for this test to have one or two tails. The two-tailed version compares the variances' equality with the alternative. Thus, option A is correct.
What nutritionist use formula for standard deviation?Rejecting a null hypothesis that is actually true in the population results in a type I error (false-positive); failing to reject a null hypothesis that is actually untrue.
To calculate how much your values (data points) normally deviate from the mean value, use the standard deviation formula. In other words, the standard deviation tells you how much your data vary.
Therefore, The samples are not mutually exclusive. After giving the kids nutritious snacks at school for three months, they retest the kids.
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how does American culture support individualism?
Could someone tell me what SAT means
SAT stands for Scholastic Aptitude Test