Chemistry College

Fill in the blank... spelling counts.

Speed is the ______ something travels divided by the _____ It takes to travel that dinstance.

Answers

Answer 1

Answer:

[tex]speed = \frac{distance}{time}[/tex]

Related Questions

The water cycle would not be possible without ______ and ________.

Options
1. evaporation; condensation
2.gravity; sun
3.precipitation; rain
4.gravity; precipitation

Answers

Answer:

I think it's 4

Explanation:

but I don't really remember the water cycle

A hypothesis must be testable. Which hypothesis is testable? *

Ablue is the best color.
BSummer is nicer than fall.
CDogs are better than cats.
DA beagle can jump higher than a Persian cat.

Answers

the answer is D because can be tested the others ones is opinion

please mark me as brainliest

What is the percent yield for the reaction below when
705.0 g SO2 and 80.0 g 02 produce 586.0 g S03?
2802(g) + O2(g) → 2503(9)

Answers

Answer:

Percent yield of reaction is 150%.

Explanation:

Given data:

Percent yield = ?

Actual yield of SO₃ = 586.0 g

Mass of SO₂ = 705.0 g

Mass of O₂ = 80.0 g

Solution:

Chemical equation:

2SO₂ + O₂      →     2SO₃

Number of moles of SO₂:

Number of moles = mass/ molar mass

Number of moles = 586.0 g/ 64.1 g/mol

Number of moles = 9.1 mol

Number of moles of O₂:

Number of moles = mass/ molar mass

Number of moles = 80.0 g/ 32g/mol

Number of moles = 2.5 mol

Now we will compare the mole of SO₃ with O₂ and SO₂.

                      SO₂          :          SO₃

                        2             :            2

                     9.1              :           9.1

                       O₂            :          SO₃

                        1              :            2

                     2.5             :           2×2.5 = 5

The number of moles of SO₃ produced by oxygen are less it will limiting reactant.

Theoretical yield of SO₃:

Mass = number of moles × molar mass

Mass = 5 mol × 80.1 g/mol

Mass = 400.5 g

Percent yield of reaction:

Percent yield = actual yield / theoretical yield  × 100

Percent yield = 586.0 g/ 400.5 g× 100

Percent yield = 1.5× 100

Percent yield = 150%


Which of the following best describes the change in Antarctic temperature from about 440,000 years ago to about 340,000 years ago?
A
The temperature increases by about 10 S
B
The temperature decreases by about 8°C.
С
The temperature increases by about 12°C and then decreases by about 12°C.
D
The temperature decreases by about 10°C and then increases by about 12°C.

Answers

Answer: С . The temperature increases by about 12°C and then decreases by about 12°C.

Explanation:

Temperatures around the world have been on the rise since the Industrial revolution as humans clog the planet with Carbon Dioxide and other pollutants. This had led to a rise in temperatures that has seen ice levels fall and sea levels rise around the world.

Temperature fluctuations on the other hand are not a new thing. Studies show that in Antarctica temperatures from about 440,000 years ago to about 340,000 years ago increased by 12°C and then decreased by about 12°C.

Answer:

  C.  The temperature increases by about 12°C and then decreases by about 12°C.

Explanation:

The attached shows ice core data that indicates the time period of interest was about the period of one full cycle of climate change. Temperature went up, then went down again to about its original level. The range of change was on the order of 12 °C.

Other Questions
Why are floppy disks obsolete ? PLEASE HELP ME - The value of y varies directly with x. If x= 4,then y= 32. What is the value of x when y= 176? Geometry, any guesses? I missed a few days so Im completely lost :( Find the area A of the polygon with the given vertices.A(7,0).B(10,0). C(10,-1). D(7,-1)square units Edy has $450 in her savings account. She deposits $40 each month. Juan has $975 in his checking account. He writes a check for for each month for his cell phone bill. He also writes a check for $19.55 each month for his water bill. After how many months will Edy and Juan have the same amount of money in their accounts? The following information is available for Moiz Company:________. Debit Credit Common Stock $30,000 Retained Earnings 20,000 Dividends $30,000 Sales Revenue 510,000 Sales Returns and Allowances 20,000 Sales Discounts 7,000 Cost of Goods Sold 310,000 Freight-Out 2,000 Advertising Expense 15,000 Interest Expense 19,000 Salaries and Wages Expense 55,000 Utilities Expense 18,000 Depreciation Expense 7,000 Interest Revenue 23,000 Using the above information, prepare the closing entries for Moiz Company. (Credit account titles are automatically indented when amount is entered. Do not indent manually.) Which statement is TRUE about V131?A) It lies between 12 and 13 on a number line. B) It lies between 11 and 12 on a number line. C) It lies between 10 and 11 on a number line. D) It lies between 9 and 10 on a number line. Which of these is the first document of representative democracy in the colonies? *Magna CartaEnglish Bill of RightsMayflower CompactDeclaration of Independence I need help!!!-10 = -5 (v-4)a) 12b) 6 c) 3d) -8What's the answer I need to know?! Question 2/5 Socrates would ask people many questions in an effort to get people to use their own reason, to realizeerrors in their thinking, and to be forced to clarify their own beliefs. What was this called?A. Platonic theoryB. Socratic methodC. Athenian philosophyD. Greek tradition True or False: Materials, websites and other beneficiary-facing content that include Centene product or benefit information must be submitted for review and CMS submission/approval prior to distribution. What happens to the water cycle when the temperature increases? which of the following was a typical tactic of nativists in the early 1900s? Why was it important for Teddy Roosevelt to take such a hard stance against the JP Morgan Trust? Using the point you found in part F, divide the final y-coordinate by the final x-coordinate. What do you think the result represents? Explain. What is 5 to the second power What is the name of the element on the periodic table with the symbol W Felipe has a flower bed 2. Who was the first woman to dunk in a professional basketball game? Which of these the best explains the importance of Judaism in world history