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Triss [41]
3 years ago
13

"Which piece of evidence would suggest an unknown substance is an ionic compound?

Chemistry
1 answer:
ohaa [14]3 years ago
6 0
The correct answer is<span> It conducts electricity when dissolved in water.

When dissolved, they split into ions that are charged and have a positive or a negative charge. They can be either liquid or solid depending on the size of the molecules, while gasses don't occur. They have high melting and boiling points.</span>
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Consider the reaction between reactants s and o2: 2s(s)+3o2(g)→2so3(g)if a reaction vessel initially contains 7 mols and 9 mol o
nadya68 [22]

Answer: -

1 mol

Explanation: -

Number of moles of Sulphur S = 7

Number of moles of O2 = 9

The balanced chemical equation for the reaction is

2S (s)+3 O2 (g)→2SO3(g)

From the above reaction we can see that

3 mol of O2 react with 2 mol of S

9 mol of O2 will react with \frac{2 mol S x 9 mol O2}{3 mol O2}

= 6 mol of S

Unreacted S = 7 - = 1 mol.

If a reaction vessel initially contains 7 mol S and 9 mol O2

1 mole of s will be in the reaction vessel once the reactants have reacted as much as possible

6 0
4 years ago
Consider the market for peanut butter. If there is a decrease in the price of deli turkey slices (a
Umnica [9.8K]

Answer:

The correct answer is option C) "equilibrium price of peanut butter definitely falls".

Explanation:

The equilibrium price of a product is the market price established at a point where the quantity of products is equal to the quantity demanded by the consumers. In this case, the market of peanut butter is facing the decrease in the price of two substitutes of peanut butter: deli turkey slices and peanut brittle. As a result, the equilibrium price of peanut butter definitely falls since the quantity demanded by the consumers will certainly fall.

4 0
4 years ago
the air pressure from the atmosphere measures 0.5atm at an altitude of 18,000 ft. How much pressure is this in pounds per square
Nutka1998 [239]

Answer:

7.5 pounds per square-inch

At sea level, one square-inch of any surface has about 15 pounds of air sitting on top of it. At 18,000 feet, that same square inch has only 7.5 pounds per square-inch (psi) exerted on it.

6 0
3 years ago
Which element can only form one ion?
stich3 [128]
I think it's hydrogen. Hope this helps :)
5 0
3 years ago
Is a tree burning a chemical or physical change
Sauron [17]
Chemical. Burning is a chemical process
8 0
3 years ago
Read 2 more answers
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