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kolezko [41]
2 years ago
14

Periodiate has how many oxygen 2 3 4?

Chemistry
2 answers:
QveST [7]2 years ago
8 0

Answer:

The law companies that value excessive ethics comply with the legal guidelines not solely in letter however go past what

Roman55 [17]2 years ago
3 0

Answer:

4

Explanation:

it has 4 oxygen

hope this helps

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Which statement describes how chemical formulas, such as H2O, represent compounds
grandymaker [24]

Answer:

Which statements describe how chemical formulas, such as H2O, represent compounds? ... They show the elements that make up a compound. They show the types of atoms that make up a molecule. They show the number of each type of atom in a molecule.

5 0
3 years ago
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Consider the anion whose charge is 2- and whose electron configuration is identical to argon. what is the symbol for this anion
AleksAgata [21]

If the ion is negatively charged, anion, it means that it gains two electrons from its surroundings. The number of electrons of an argon (neutral atom) is 18. Two of the electrons in our anion is from the surrounding, so originally it only has 16 electrons.

In the periodic table, the 16th element is sulphur. The chemical symbol of sulphur is S. Thus, the anion is the negatively charged sulphur with chemical symbol of S2-. 

8 0
2 years ago
What does is so used to eliminate a substance that is too large to leave by diffusion
dybincka [34]
Reword it so we can understand it better, to answer your quetion

8 0
3 years ago
The amount of resistance to a change in motion an object demonstrates is a direct function of its:
Lelechka [254]

Answer:

Newton second law maybe?

7 0
3 years ago
How many grams of water at 25 C must be mixed in an insulated container with 250 grams of water at 93 C if the final temperature
nydimaria [60]

Answer:

Explanation

Comment

Normally you would just use m*c*delta T. But the c is the same in both cases, so you need just use m*deltaT

Givens

25 degrees

m = ?

T = 25

t = final temp = 75

93 degrees

m = 250

T = 93

t = final temp = 75

Solution

(t - 25)*m = (93 - t) * 250                   Remove the brackets

75*m - 25m = 93*250 -  250*75      Combine the right

m(75 - 25) = 23250 - 250*75

50 m = 23250 - 18750                      Combine

50 m = 4500                                      Divide both sides by 50

50*m/50 = 4500/50

m = 90

Answer: 90 grams are needed.

7 0
1 year ago
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