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devlian [24]
3 years ago
9

A 8 g object displaces 50 mL of water. What is its specific gravity?

Chemistry
2 answers:
DaniilM [7]3 years ago
6 0

The specific of gravity is 0.16

Hope this helps :)

Phoenix [80]3 years ago
5 0

Answer:

he is right it is 0.16

Explanation:

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Use the rules (in order) to assign oxidation numbers to each of the elements in the compounds below.
xz_007 [3.2K]

Answer:

Explanation:

The oxidation number is an integer that represents the number of electrons that an atom receives or makes available to others when it forms a given compound.

The oxidation number is positive if the atom loses electrons, or shares them with an atom that has a tendency to accept them. And it will be negative when the atom gains electrons, or shares them with an atom that has a tendency to give them up.

Chemical compounds are electrically neutral. That is, the charge that all the atoms of a compound contribute must be globally null. That is, when having positive or negative charges in a compound, their sum must be zero.

There are some rules for determining oxidation numbers in compounds. Among them it is possible to mention:

  • Hydrogen (H) has an oxidation number +1 with nonmetals and - 1 with metals.
  • Oxygen (O) presents the oxidation number -2
  • Fluorine F has a unique oxidation state -1

Then:

  • NOF: N+(-2)+(-1)=0 → N=3 → oxidation number of  nitrogen (N) is +3, oxidation number of oxygen (O) is -2 and oxidation number of  fluorine (F) is -1.
  • ClF₅: Cl + 5*(-1)=0 → Cl= 5 → oxidation number of  chlorine (Cl) is +5 and oxidation number of  fluorine (F) is -1.
  • H₂SO₃: 2*(+1)+S+3*(-2)=0 → S=4 → oxidation number of hydrogen (H) is +1, oxidation number of oxygen (O) is -2 and oxidation number of sulfur (S) is +4.
8 0
3 years ago
The atomic number of gold (Au) is 79, and it has a mass number of 197. How many electrons are present in each atom of gold?
aliya0001 [1]
There would be 79 electrons present in each atom of gold. I hope this helps :)
8 0
2 years ago
Help i give more point this time​
dmitriy555 [2]

Answer:

It's a type of chemical bond that emerges because of electrostatic force between electrons and positive metal charges.

Explanation:

I don't know if this is what you are looking for but i don't mind if you copy it.

3 0
3 years ago
how do you tell if an element has positive or negative charge. And how do you know when the valence electrons have to be shared
Eva8 [605]

Answer:

A normal atom has a neutral charge. When you are missing electrons it has a positive charge. When you have extra electron, you have a negative charge. I am not sure what the answer to your second question is, sorry.

Explanation:

7 0
3 years ago
Can someone help. posted this same question 3-4 times.
olya-2409 [2.1K]

(JSYK: this is all considering that only whole batches are included and fractional batches aren't)

Answer: 3 batches (72 cookies), her limiting reactant should be sugar since she only has enough to make three batches exactly, and she will also have 3/4 a cup of flour left over, 2 cups butter, and 5 eggs, in addition to the excess of baking soda and baking powder.

Hope this helps, if not, comment below please!!!

5 0
2 years ago
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