Answer:
It seems you're not the greatest as English either.
Explanation:
Answer:
on your own?
Explanation:
it sticks better in your head once you fail
im sorry i dont know this i really need points for my maths test
Explanation:
Cytoplasm- a sticky jelly like substance that helps the other structures stay in place.
Nucleus- the control center of the cell. It tells everything what to do.
Mitochondria- it gives the cell energy
Endoplasmic reticulum- it delivers things in and out of the cell
Ribosomes- give the cell protein
Golgi apparatus- it collects unwanted things in the cell to ship out of the cell
Vesicles- can help transport materials that an organism needs to survive and recycle waste materials.
Lysosomes- they are like a big sac of acid that dissolve things
Cell membrane- the gateway of the cell; it lets things in and out
(please vote me brainliest)
Answer:
Sodium
Explanation:
Radius grows as you go down and to the right on the ptable.
Answer:
47 kJ·mol⁻¹
Explanation:
NaI(s) ⟶ Na⁺(aq) + I⁻(aq); ΔH = ?
We can carry out this process in a series of steps.
1. Convert the solid to its gaseous ions.
NaI(s) ⟶ Na⁺(g) + I⁻(g); -ΔH(lat) = 704 kJ
2. Hydrate the Na⁺ ions
Na⁺(g) ⟶ Na⁺(aq); ΔH(hyd) = - 410.0 kJ
3. Hydrate the I⁻ ions
I⁻(g) ⟶ I⁻(aq); ΔH(hyd) = -247
4. Add the equations
Cancel ions that occur on opposite sides of the reaction arrow
<u>ΔH/kJ·mol⁻¹</u>
NaI(s) ⟶ Na⁺(g) + I⁻(g); +704
Na⁺(g) ⟶ Na⁺(aq); - 410.0
I⁻(g) ⟶ I⁻(aq); -247
<u>NaI(s) ⟶ Na⁺(g) + I⁻(g)</u> <u> 47</u>
The heat of solution of NaI is 47 kJ·mol⁻¹.