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, 21.06.2019 22:30, Arealbot
Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.
Answers: 2
Chemistry, 22.06.2019 18:10, NEONREDBLADE
Areader can tell that the meaning of “obnoxious” will include “having the quality of something” because of the .a) prefix b)pronunciation c)suffix d) word root
Answers: 3
Chemistry, 22.06.2019 19:00, ghernadez
Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.
Answers: 1
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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