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3 years ago

how do the properties of compounds compare to the properties of the elements from which they are composed

1 answer:

Crank3 years ago

6 0

<span>The elements that form the compound don't compare because it doesn't matter about the elements when they are combined. The elements that formed it together is completely different than the outcome compound. </span>

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3 years ago

Pls help

bezimeni [28]

Answer:

Particle Symbol Mass

electron e- 0.0005486 amu

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3 years ago

If you have 1.4 grams of silver (Ag), how many moles of silver do you have?

creativ13 [48]

Answer: There are 0.0129 moles of silver present in 1.4 grams of silver (Ag).

Explanation:

Given: Mass of silver = 1.4 g

Number of moles is the mass of substance divided by its molar mass.

As molar mass of silver is 107.86 g/mol. Therefore, moles of silver are calculated as follows.

$No. of moles = \frac{mass}{molar mass}\\= \frac{1.4 g}{107.86 g/mol}\\= 0.0129 mol$

Thus, we can conclude that there are 0.0129 moles of silver present in 1.4 grams of silver (Ag).

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3 years ago

Which is a characteristic of an atom?

Serhud [2]

Answer:

its atomic number

Explanation:

which is defined as the number of units of positive charge (protons) in the nucleus. For example, if an atom has a Z of 6, it is carbon, while a Z of 92 corresponds to uranium.

7 0

3 years ago

Read 2 more answers

Who want to be the brainliest

GrogVix [38]

Answer:

You cross multiply the valencies as shown

Explanation:

1. Al(OH)3

2. The valency of Calcium is 2- not 1- so,

CaO

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3 years ago