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3 years ago

What is the formula for an ionic compound that forms out of Sr and Br?

Chemistry

1 answer:

lesantik [10]3 years ago

8 0

Answer: St Br2

Explanation: Br has only one valence electrons and Sr has 2 valence electrons this is why we need 2 atoms of Br to for an ionic compound with 1 atom of Sr.

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What is Suspension!?

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Mixture between a liquid and particles of a solid

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What are the name for : BeCl2.2H20 and LiNO2.H20

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BeCl2 = Beryllium Chloride
2H2O = 2 molecules of H2O (water)
LiNO2 = Lithium Nitrate
H2O = water

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What is the difference between nitrite and nitrate

Dahasolnce [82]

Answer:

<u>Nitrite:</u>

Formula : NO₂⁻
1 nitrogen molecule and two oxygen molecules with an excess electron.
Angular shape

<u>Nitrate:</u>

Formula: NO₃⁻

1 nitrogen molecule and three oxygen molecules with an excess electron.
Trigonal planar structure.

$\rule[225]{225}{2}$

Hope this helped!

4 0

2 years ago

Scientists developed a device capable of lowering temperatures in order to slow molecular motion to almost a complete stop. Whic

seropon [69]

Answer:

273k

Explanation:

Soooo... This is a complicated problem.

I dunno. Like... Is this a trick question? Trivia, maybe?

Nahhhhh...

It's just not telling us facts...SOME facts, but we need to use past learning to help us.

FIRST of all, what the heck does K even mean?

Is this a memo? A demo? A KO?

Okay, it's nither of these things.

So, let me tell you what the "K" means.

The K means "Kelvin" which is basically a word form for "-"

I AM NOT MAKING A FACE. IT'S THE WORD FORM FOR MINUS. STOP LAUGHING!!!!

And so... To bring objects to a COMPLEETE SKRRRRRRRRRRRRRRRRRRRRRRT...

It will need to be -273.

This means that the answer is 273k.

Which reminds me, Ima play 2k.

And ima rap to-day.

And now I'm being lame.

Just answer the question :/

3 0

3 years ago

What is -2/3÷(1 1/4)

IRISSAK [1]

Answer:

to simplify, its -0.53

4 0

3 years ago