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Thepotemich [5.8K]
3 years ago
15

I need help with a questino

Chemistry
2 answers:
kipiarov [429]3 years ago
6 0

Explanation:

What will the question be ?

olga nikolaevna [1]3 years ago
3 0
What is the question please and thank you and why do you need help
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The correct answer of (43.678)(64.1)
goblinko [34]

Answer:

2,799.7598

Explanation:

If you like my answer than please mark me brainliest thanks

5 0
3 years ago
How many number of electrons are in nitrogen and aluminium in their ionic States?​
mariarad [96]
If you look at the periodic table you’ll noticed a trend. Group one, sometimes called 1A, has hydrogen in it, it’s group (column) has a positive charge. The group (column) next to it Group 2 sometimes called 2A has twice the charge as group 1. Then you skip the transition metals, and then land on group (column) 13. These guys have a charge of +3 typically. Then you have group 14, sometimes called 4A, and it’s weird and it kind of breaks with this trend. Then you have group (column) 15 next to it, sometime called 5A, which now starts to count down in charge, it has a charge of -3.

And each group (column) after that countdown to zero charge, once you have zero charge you know that you’re in the noble gases.

So, nitrogen in group (column) 15, also know as column 5A. This column has for the most part a charge of -3.

Aluminum is in group (column) 13, they have a charge of +3 typically.


I hope that helps.

7 0
3 years ago
What is the empirical formula for butane, C4H10
pochemuha
C2H5 i think by ÷2 on both
4 0
3 years ago
What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.2
Nadya [2.5K]

This is an application of osmotic pressure which is one of the colligative properties of substances. The formula of osmotic pressure is expressed as P = MRT where M is molarity , R is the gas constant and T is temperature. When M is equal to a total of 0.305 M and T is equal to 298 K ,  P should be equal to 7.46 atm
3 0
4 years ago
Which quantity does a light-year measure?<br><br> A) distance<br> B) speed<br> C) time<br> D) volume
tatuchka [14]

Answer:

speed

Explanation:

6 0
3 years ago
Read 2 more answers
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