Donnez la formule chimique des ions qui constituent les cristaux de sel, sachant que l'ion sodium porte une charge positive en excès et l'ion chlorure porte une charge négative en excès.
aidez moi svpp.

paranteza patrata 11 /5+2/3 ori paranteza rotunda 3x - 1 /10 paranteze inchise : 47/15 =1

1 September 2025 89 views 89 comments

Determinati cel mai mare nr natural de patru cifre distincte divizibil cu :2, 5 si 10

1 September 2025 85 views 85 comments

Montezuma was a(n) ________ruler.

1 September 2025 33 views 33 comments

selcteza din secventa citata trei cuvinte care contin diftongi diferiti si doua cu hiat.
iarna pe meleagurile noastre este anotimpul friguros prin definitie, puternic influentat de fiecare data de catre masele de aer rece

1 September 2025 160 views 233 comments

o insigna in forma de romb are un unghi asutit de 65 de grade ,ce masura are unghiul obtuz?

1 September 2025 91 views 91 comments

Alcatuieste caracterizarea colegei de banca.

1 September 2025 44 views 44 comments

Ana a cumparat cu 7/15din suma pe care o avea niste carti si cu 1intreg si 1/30 din suma a cumparat un stilou. Cesuma a avut ana, daca stiloul este cu 17 lei mai scump decat cartile?? Plsssssss rapid dau fundaaaaaaaaaaa

1 September 2025 160 views 219 comments

Beneficii ale ciocolatei fara lapte

1 September 2025 35 views 35 comments

Calculati aria unui triunghi care are lungimile laturilor de 40 cm,30 cm si 24 cm.

1 September 2025 82 views 82 comments

Which lines in the passage explain why English scholars felt a dire need to set standards for the English language?

1 September 2025 115 views 115 comments

Figura geometrica alcătuită din 2 semidrepte cu aceeași origine.

29 Agustus 2025 64 views 64 comments

Salut!

Ma puteti ajuta? Descrieti o locatie turistica din Romania dupa model :

A beautiful place in your country Write an article about an area of outstanding natural beauty in your country and find picture to illustrate it. Imagine you are visiting the area.(aceasta e cerinta)



1.Say why the area is important.

Ex:This week weare Visiting Snowdonia National Park in Month males. This isa region a mountains which includes Mount Snowdon, t

28 Agustus 2025 160 views 500 comments

What are the common sources and targets identified on global DDoS attack maps today?

28 Agustus 2025 84 views 84 comments

In your​ class, you have scores of 84​, 95​, 83​, and 86 on the first four of five tests. To get a grade of Upper B​, the average of the first five tests scores must be greater than or equal to 80 and less than 90.
a.
Solve an inequality to find the least score you can get on the last test and still earn a Upper B.
b.
What score do you need if the fifth test counts as two​ tests?

30 Agustus 2025 160 views 406 comments

de ce credeti ca in orasele europene s-a pastrat un centru medieval, iar in orasele nord-americane nu? repede, va roggg

29 Agustus 2025 121 views 121 comments