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3 years ago

HELP I HAVE 14 MINUTES!!

Chemistry

2 answers:

Whitepunk [10]3 years ago

7 0

3- b, d, and g. a neutron has no charge and has mass.

ki77a [65]3 years ago

4 0

Answer:

2 one

Explanation:

is right coz I think

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Help plz..? this is really important to me and this is most of my grade may you please help?

Jet001 [13]

In sodium there are 11 electrons
In chlorine there are 17 electrons
There are 17 protons in chlorine
There are 11 protons in sodium

I’m not sure what an octet is I study in a British system if there’s anything else you’re not sure of search the Internet it has all the answers

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3 years ago

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A covalent chemical bond is one in which

vitfil [10]

I think the answer is c

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3 years ago

WHATS THE DIFFERENCE BETWEEN Fe AND FE2+

Grace [21]

Answer:

Fe is just the shortened version of Iron whereas Fe2+ is a positive ion,cation to be more specific

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3 years ago

Write and balance the equation for the combination of ammonia gas with solid copper (II) oxide to produce copper metal, nitrogen

Katena32 [7]

Explanation :

The balanced chemical reaction will be,

$3CuO(s)+2NH_3(g)\rightarrow 3Cu(s)+N_2(g)+3H_2O(l)$

By the stiochiometry, 3 moles of solid copper(II)oxide react with 2 moles of ammonia gas to give 3 moles of copper metal, 1 mole of nitrogen gas and 3 moles of liquid water.

The states of matter of each elements and compound is,

Copper(II)oxide is in solid state

Ammonia is in gaseous state

Copper metal is in solid state

Nitrogen is in gaseous state

Water is in liquid state

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3 years ago

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A beaker with water and the surrounding air are all at 24°C. After ice cubes are placed in the water, heat is transferred from:

xxTIMURxx [149]

(3) the water to the ice cubes
This is so because the ice cubes are colder compared to their surrounding objects.
They absorb the heat from the water, cooling it, therefore vanishing(melting).

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3 years ago

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