Recent activity by Lutz Prechelt

Recent activity by Lutz Prechelt

Choose the answer with the name and formula that do NOT match. 1. KSCN : potassium sulfocyanide 2. HIO3 iodic acid 3. Cr₂(SO4)3 chromium(III) sulfate 4. (NH4)2CO3 : ammonium carbonate 5. FeCl₂ iron(II)

answered Dec 29, 2024

1 answer 173k views

Water expands about 8.7% when it freezes. Assume the volume of 1 g of water is 1 cm^3. Calculate ΔV for the freezing of 1 g of ice. A) 0.087 cm^3 B) 0.01 cm^3 C) 1.087 cm^3 D) 0.87 cm^3

answered Sep 29, 2024

1 answer 113k views

A) Write the points in the minor sector OAPB. a) (0,0), (1,0), (1,1), (0,1) b) (-1,0), (0,0), (0,1), (-1,1) c) (0,0), (1,0), (0,1), (-1,1) d) (0,0), (1,0), (1,-1), (0,-1) b) Write the points in the minor

asked Sep 23, 2024

1 answer 65.3k views

How are chemical and physical weathering different?

answered Aug 20, 2024

1 answer 202k views

The distribution of the salaries of sustainability analysts is skewed to the right. If Shamma is interested in estimating the mean salary of a sample of sustainability analysts, which of the following

answered Jan 14, 2024

1 answer 52.4k views

Select the correct answer. Which equation represents the line that is parallel to y= 3 and passes through (-2,-8)? OA x= -2 B. x= 3 O c. y=-8 ОО D y= 3x-2

asked Oct 2, 2023

2 answers 10.5k views

Q. If A is a square matrix such that A² = A, then write the value of 7 A −(I + A)³, where I is an identity matrix.

answered Jul 5, 2023

1 answer 72.6k views

Watch help videoA group of friends wants to go to the amusement park. They have no more than $305to spend on parking and admission. Parking is $19, and tickets cost $26 per person,including tax. Write

asked Jun 28, 2023

1 answer 210k views

Please help I need it

answered Jun 6, 2023

2 answers 140k views

State two input devices and two output devices, explaining how they would be useful in graphic design work.

asked May 16, 2023

1 answer 167k views

How many electrons would be too many for a nitrogen atom

answered Apr 11, 2023

1 answer 92.8k views

Find all values f x that make the equation true: 4/x+4=x-2/x

answered Feb 9, 2023

1 answer 141k views

Michael and Zach are hiking in the mountains. They left Michael’s car in the parking lot and walked northwest for 12.4 km to a campsite. Then they turned due south and walked another 7.0 km to a glacier

asked Jan 27, 2023

1 answer 75.0k views

How does temperature affect the heart rate of daphnia? A. The heart rate increases with lower temperature. B. The heart rate decreases with higher temperature. C. The heart rate increases with higher temperature.

asked Jan 23, 2023

1 answer 118k views

Which even led to the English reformation

asked Dec 23, 2022

1 answer 202k views

The net of an equilateral triangular pyramid is shown below. Use the ruler in the toolbar to the right to measure the dimensions of the net to the nearest 1/4 inch. Which measurement is the closest to

answered Nov 23, 2022

1 answer 137k views

Who became the first Chinese ruler to claim the title of emperor? A.Li Yuan B.Prince Zheng C.Confucius D.Kublai Khan

answered Nov 18, 2022

1 answer 86.2k views

Please help!!!!!!!!!!!!

asked Nov 10, 2022

2 answers 76.9k views

Which is the solution to the inequality? 3 8 15 o b< 2 1 15 Ob>27 o b<3 77 O b>37

asked Nov 7, 2022

1 answer 61.7k views

The concert of Europe redrew the borders of many European countries in order to

asked Oct 24, 2022

1 answer 106k views

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