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Gwar [14]
4 years ago
15

Which two elements on the periodic table are in the same period?

Chemistry
1 answer:
emmainna [20.7K]4 years ago
6 0

Answer:

Platinum and Gold ig.

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What is the full ionic equation for CuCl2 and (NH4)2SO4?
melisa1 [442]

The full ionic chemical balanced equation for CuCl2 and (NH4)2SO4 is 2(NH4)Cl + CuSO4.

Explanation:

The full ionic chemical balanced equation for CuCl2 and (NH4)2SO4 is

CuCl2 + (NH4)2SO4 ⇔ 2(NH4)Cl + CuSO4.

Here the left side one's are reactants i.e.,CuCl2 and (NH4)2SO4.

The right siders are products i.e.,(NH4)Cl and CuSO4.

The complete ionic equation is used to include both chemical species as well as spectator ions. It is used to indicate which of the reactants and products in the equation exists primarily as ions in aqueous solution.

It is nothing but a chemical equation in which electrolytes which are soluble in water are formed as dissociated ions.

The above chemical reaction is double displacement reaction.

3 0
3 years ago
The forces between water molecules are stronger than the forces between ethanol molecules. which illiquid would probably be most
tino4ka555 [31]
It would most likely be harder for the insect to walk on ethanol because the bonds holding the ethanol together are not as strong
4 0
3 years ago
How many moles are in 123.0g (NH4)2SO4
Luda [366]
Here you go! There are 0.9307 moles in 123.0 g of the compound. I solved this by using a fence post method. I calculated the number of grams in one mol of (NH4)2 SO4 and got 132.16.

I did this by finding the atomic mass of each element on the periodic table (my work is in the color blue for this step)

After that, i divided the given mass by the mass of one mol of the compound.

The answer is 0.9307 moles!! I hope this helped you! :))

7 0
3 years ago
if an apple has eight seeds and one apple has a mass of 0.2kg,how many apple seeds are in 14 kg apple
poizon [28]
14kg=Number of Apples*.2kg
70 Apples *8 Apples each=560 seeds
8 0
3 years ago
How many moles of agcl are contained in 244 ml of 0.135 m agcl solution. the density of the solution is 1.22 g/ml?
Zanzabum

Answer is: 3,94·10⁻² moles of silver chloride are contained in 244 ml of solution.

V(AgCl) = 244 ml = 0,244 l.

b(AgCl) = 0,135 mol/kg.

d(AgCl) = 1,22 g/ml.

m(AgCl) = V(AgCl) · d(AgCl).

m(AgCl) = 244 ml · 1,22 g/ml.

m(solution AgCl) = 297,68 g.

m(AgCl) = 0,135 mol ·143,3 g/mol = 19,34 g.

ω = 19,34 g ÷ 19,34 g + 1000 g = 0,0189.

m(AgCl) = 0,0189 · 297,68 g = 5,64 g.

n(AgCl) = 5,64 g ÷ 143,3 g/mol = 0,0394 mol.

4 0
4 years ago
Read 2 more answers
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