Chemistry, 18.03.2021 02:00 cookies1164
1. Which quantity is the largest: 20 cm, 25 mm, 0.05 m, 2.5 dm?.
2. What physical methods you can use to separate components of a mixture of sand, salt and iron filings (tiny pieces)?
3. A box with cubic shape has each side of 50 mm. What is the volume of the cube in cm3? Volume in liters (L)? .
4. A rectangular piece off silver foil weighs 2.1 g. If the the density of silver is 10.5 g/cm3, what is the volume of the foil? If the length and width of the foil are 10 cm and 5 cm respectively, what is its thickness?
Answers: 2
Chemistry, 22.06.2019 18:00
Which statement best describes the he properties of iconic compounds ?
Answers: 1
Chemistry, 23.06.2019 01:20
Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 Γ 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)
Answers: 1
Chemistry, 23.06.2019 02:30
Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.
Answers: 2
1. Which quantity is the largest: 20 cm, 25 mm, 0.05 m, 2.5 dm?.
2. What physical methods you can u...
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