3 years ago

What is the difference between an open system and a closed system

1 answer:

4 0

Answer:

An open system is defined as a “system in exchange of matter with its environment, presenting import and export, building-up and breaking-down of its material components.” Closed systems, on the other hand, are held to be isolated from their environment.

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How do you actually know the chemical formulae for the ionic compound

qaws [65]

If you have to write the chemical formula of a simple, binary ionic compound given the name of the compound, you follow a set of three steps. Let's go through them using magnesium chloride as an example. Write the symbols for the cation and the anion: Mg and Cl. Determine the charge on the cation and anion.

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3 years ago

7. Calculate moles of H2 needed to form 2.25 moles HCl in the reaction H2 + Cl2==>2HCl

mart [117]

Answer:

1.125 moles

Explanation:

2mole of HCl produced 1mole of H2

2.25moles of HCl will produce x moles

cross multiply

2x=™1×2.25

x= 2.25÷2

x=1.125mole

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3 years ago

Consider the molecules H2O, H2S, H2Se, and H2Te. Which do you expect to have the highest boiling point, and why?

STatiana [176]

Answer:

a. H20,because it experiences hydrogen bonding.

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3 years ago

Which group, metals or nonmetals, has the greatest chance to gain electrons and to become negative ions?

tatyana61 [14]

It would be non-metals

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3 years ago

You are given 2 balls that are made of the same material. They are also the same size and color. One is hollow and one is solid.

RUDIKE [14]

Answer:density

Explanation:

it’s how’s how dens the ball is

7 0

3 years ago