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faltersainse [42]
4 years ago
12

Please help me answer this question

Chemistry
2 answers:
abruzzese [7]4 years ago
7 0

Answer:

Electrolytes are observed by conductivity - so unknown 2 should be circled, and Tap Water, which almost always contains electrolytes, mineral salts in solution.

Explanation:

Schach [20]4 years ago
5 0

Electrolytes are observed by conductivity. unknown 2 should be circled, and Tap Water.

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A(n)_______is a balanced chemical equation that includes the
Katyanochek1 [597]

Answer:

thermochemical equation

Explanation:

A(n)__thermochemical equation_____is a balanced chemical equation that includes the physical states of all reactants and products, and the energy change that accompanies the reaction.

7 0
3 years ago
How many g are equal to 345.7 mg? what conversion factor will you use
Over [174]

Answer:

0.3477 grams

The conversion factor is 1/1000

Explanation:

347.7 mg = 0.3477 grams

1 mg = 1x10⁻³ g

1 g / 1000 mg . 347.7 mg = 0.3477 grams

3 0
3 years ago
Balance these chemical equations mg(s)_ + _N2(g) = _mg3N2
Salsk061 [2.6K]

Answer:

3 Mg(s) + N_2(g) = Mg_3N_2(s)

Explanation:

The valance of magnesium atom is  +2

While the valence of nitrogen atom is - 3

Let us first write the first  half-reactions

Mg ---> Mg^{2+} + 2e^{-}

The second half reaction is

2N + 6e^-  -----> N_2

Adding the above two reactions and writing the final reaction, we get -

Mg + N2 = Mg_3N_2

The balance equation is

3 Mg(s) + N_2(g) = Mg_3N_2(s)

6 0
3 years ago
A when sulfuric acid is added to sirie, hydrager
irga5000 [103]

Sulfuric acid is prepared industrially by means of the response of water with sulfur trioxide which in turn is made by way of a chemical combination of sulfur dioxide and oxygen both by way of the touch system or the chamber system.

                         H2SO4 (l) H2O (g) + SO3 (g).

The reaction is highly exothermic as an enormous amount of heat is liberated.

The usual approach is to dilute the sulfur trioxide in sulphuric acid. This produces oleum. SO3 (g) + H2SO4 → H2S2O7 (1) Oleum can be in addition diluted in water to acquire concentrated sulphuric acid.

An acid catalyst is added to protonate the carbonyl carbon. How does this catalyze the response, robust acid catalysts catalyze the hydrolysis and transesterification of esters which enables the mechanism with a view to boom the electrophilicity of the carbonyl carbon to assist protonate the carbonyl oxygen.

Learn more about sulfuric acid here:-brainly.com/question/11857977

#SPJ9

8 0
2 years ago
Lauren walks 100m in half a minute. What must her speed have been to travel this distance?
tester [92]

Answer:

10/3 m/s. v=d/t. so 100/30 = 10/3

4 0
4 years ago
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