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lianna [129]
3 years ago
8

Please help :) I don’t know what to do

Chemistry
1 answer:
3241004551 [841]3 years ago
3 0

Answer:

1. MgCl2 + Zn -> Mg + ZnCl2

2. 2Al + 6H2O(g) -> 2Al(OH)3 + 3H2

3. 2Cd + O2 -> 2CdO

4. I2 + KF -> it's not going to react

5. Zn + H2SO4 -> ZnSO4 + H2

6.2KBr + Cl2 -> 2KCl + Br2

7. AgNO3 + Na -> NaNO3 + Ag

8. 2NaCl + F2 -> 2NaF + Cl2

9. AgNO3 + Mg(NO3)2 + Ag

10. Ni + H2SO4 -> NiSO4 + H2

11. Al + K2SO4

12. FeCl3 + 3Mn-> 3MnCl + Fe

13. 2Na + 2H2O -> 2NaOH + H2

14. 2K + MgBr2 -> 2KBr + Mg

15. Zn + Pb(NO3)2 -> Pb + Zn(NO3)2

16. 2AlBr3+ 3Cl2 -> 2AlCl3 + 3Br2

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the central atom in a certain molecule has 3 bonded electron pairs and 2 nonbonded electron pairs in its valence shell. the mole
Nutka1998 [239]

They have 2 lone pairs and 3 bond pairings. Sp3D hybridization has been achieved in the core atom. The molecule is trigonally bipyramidal or T-shaped.

<h3>What is the name of T-shaped molecular geometry?</h3>
  • They have 2 lone pairs and 3 bond pairings. Sp3D hybridization has been achieved in the core atom. The molecule is trigonally bipyramidal or T-shaped.
  • At a 90° angle from the equatorial orbitals, two orbitals are placed along the vertical axis. The orbitals are trigonal bipyramidal in form. Lone pairs of electrons are present in two of the equatorial orbitals. The three atoms are positioned around the core atom to create a T-shaped molecule.
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7 0
1 year ago
Which of the following sign does not indicate that a chemical change has happened .
Sever21 [200]

Answer:

A.)

Explanation:

A change in state may seem like a chemical reaction, but it is actually a physical change. "A change in state" is basically saying that the appearance of whatever the item is, is taking a change physically. Whether this item was going through some examples of a physical change, which would be:

<em>melting (solid to liquid), evaporation (liquid to gas), condensation (gas to liquid), freezing (liquid to solid), deposition (gas to solid), and sublimation (solid to gas).</em>

A change in color, odor, taste, chemical compound, and temperature all represent a chemical reaction, because these are all things that are happening within the the item that is being given the product of a chemical change.

Think of it this way: <em>internal changes within the product: chemical. External changes within the product: physical.</em>

I hope this helps.

4 0
3 years ago
How many atoms of titanium are in 0.085 mol of titanium
aleksley [76]

Answer:

5.12x10^23 atoms

Explanation:

To find atoms, you need to use Avogadro's number. Here is the equation:

0.085 mol x 6.022x10^23 atoms = 5.12x10^22 atoms of titanium

Keep in mind that units need to cancel and make sure to double check those sig figs!

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3 years ago
How many grams are in 1.5moles of calcium
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Answer: 60.117 g

Explanation: 1.5 mol Ca = \frac{40.078g/mol}{1mol} multiply and quit all "mol" and you get the grams

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3 years ago
What was one idea Dalton taught about atoms
gogolik [260]

The main points of Dalton's atomic theory, as it eventually developed, are: Elements are made of extremely small particles called atoms. Atoms of a given element are identical in size, mass and other properties; atoms of different elements differ in size, mass and other properties.

4 0
3 years ago
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