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-BARSIC- [3]
3 years ago
7

What is the most reactive metal on the periodic table?

Chemistry
1 answer:
8_murik_8 [283]3 years ago
8 0
CAESIUM is the most reactive metal............
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You are holding four identical balloons each containing 10.0g of a different gas. The balloon containing which gas is the larges
Vaselesa [24]

Answer:

Hydrogen, H_2

Explanation:

mass of each gas is 10.0 g

number of mole =  mass/ molar mass

number of moles is directly proportional to volume at constant temp and pressure

this implies that the  volume is inversely proportional to molar mass. And Among all the gases in periodic table the molar mass of Hydrogen is the least.

molar mass of H2=2 g/mol

Since, H2 has minimum molar mass then for the same mass of the gases Hydrogen will have maximum volume.

6 0
3 years ago
The specific gravity of gold is 19.3. What is the length of one side of a 0.4 kilograms cube of solid gold, in units of inches?
zepelin [54]
Specif gravity = density of the material / density of water

density of the material = specific gravity * density of water

density of gold = 19.3 * 1 g/mL = 19.3 g/mL

density = mass / volume ==> Volume = mass / density

Volume = 0.4 kg * 1000 g/kg / 19.3 g/mL = 20.725 mL

Length of one side of the cube = \sqrt[3]{20.725 {cm}^{3} } = 2.75 cm

Pass cm to inches
2.75 cm * 1 inch / 2.54 cm = 1.08 inch
8 0
3 years ago
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Calculate the mass in grams for a single molecule of carbon monoxide​
Oxana [17]

Answer:

7.307 x 10^-23

Explanation:

mass of one molecule = mr/ avogadros number

= 44/6.022 x 10^23

= 7.307x 10^-23

4 0
3 years ago
A wide range of molecular compounds dissolve in water. this allows water to act as a medium for moving molecules into and out of
Sergio [31]
Lipids cannot dissolve in water.
8 0
3 years ago
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PLEASEEE HELP !!! How many moles of H2O are equivalent to 97.3 grams of H2O? <br><br> ___? = mol
Aleks04 [339]

no. of moles=mass/molar mass

                    =97.3/18

                    =<u>5.40555555556 moles</u>

5 0
3 years ago
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