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Lelu [443]
3 years ago
11

Which of the following are all examples of units?

Chemistry
1 answer:
professor190 [17]3 years ago
3 0
The answer would be c)centimeter, second, inch :)
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What is the mass of 22.4 L of H2 at STP?
Vanyuwa [196]

A. 1.01 is the right answer

Since

The formula is Pv= nRT

P=1 atm

V= 22.4 L

N= x

r= 0.0821

t = 273 k (bc it’s standard temperature)

So (1)(22.4)=(x)(0.0821)(273)

X= 1.001

7 0
3 years ago
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What is the difference between a molecular formula and a molecular model?
snow_tiger [21]
 <span>Molecular compounds, which are represented by molecules, are usually made of non-metals only (or of metalloids and non-metals). Ionic compounds, which are represented by formula units, are made of metals and non-metals. 

More detail if you're interested: Molecules and formula units are the representative particles for molecular and ionic compounds, respectively. By that I mean, one unit of a molecular compound is a molecule...a bundle of atoms covalently bonded that exists separately from all the other molecules. One unit of an ionic compound is a formula unit. A formula unit is a representation of the compound's formula. For example, the formula unit of NaCl is one Na^+1 ion and one Cl^-1 ion. The formula unit of AlCl3 is one Al^+3 ion and three Cl^-1 ions. Ionic compounds don't have separate bundles of atoms like molecular compounds do, so the formula unit is just the smallest number of ions that it takes to represent the formula. </span>
6 0
3 years ago
Rango carefully mixed 15.6 g of sodium with chlorine. The reaction produced 39.7 g of sodium chloride. How many grams of chlorin
Evgen [1.6K]

Answer:

24.1g of chlorine & 15.6g of sodium

Explanation:

according to the law of conservation of mass

Na+Cl=NaCl only

5 0
3 years ago
An element (gas) used to make colorfully lit advertising signs
AleksAgata [21]
The correct answer is neon
4 0
3 years ago
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True or False? The following set of quantum numbers is acceptable (0, 0, 0, +1/2). Explain.
leonid [27]

Answer:

False

Explanation:

The values of the principal quantum number range from 1- infinity. This implies that there is no such thing as an energy level with n=0.

Hence this can not be an acceptable set of quantum numbers when n=0.

8 0
3 years ago
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