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Nadusha1986 [10]
3 years ago
13

Mia is having a picnic. she will provide orange juice unsweetened tea, and sodas. She plans to make peanut butter sandwiches and

trail mix. She will also make some gelatin with bananas in it. Which picnic items are mixtures? Which are solutions? Explain your choices.
Chemistry
2 answers:
maw [93]3 years ago
7 0
Everything is a mixture bc they all have compounds
Alchen [17]3 years ago
5 0

Everying thing is mixture as everything have different compounds

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What does it mean for an element to be reduced?
alexira [117]
When the element is reduced it gains electrons, maybe it's charge becomes more negative. 

8 0
4 years ago
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In your own words, explain how/why precipitates form. Also explain what spectator ions are.
Andrej [43]

A precipitate is a product of a reaction that is insoluble in the reaction medium (usually water).

Why?

One of the signs that a reaction happened is that a precipitate forms. Let's take the reaction between Silver Nitrate (AgNO₃) and Sodium Chloride (NaCl) as an example:

AgNO₃(aq) + NaCl(aq) → AgCl(s)↓ + NaNO₃(aq)

In this reaction, Silver Chloride (AgCl) is an insoluble product of the reaction, and precipitates out of the reaction medium

If we write down the ionic equation, we find out the following:

Ag⁺ + NO₃⁻ + Na⁺ + Cl⁻ → AgCl(s) + Na⁺ + NO₃⁻

The ions that appear at both sides of the arrow are called spectator ions, since they are not directly involved in the process of the reaction, making the net ionic equation to be:

Ag⁺ + NO₃⁻ → AgCl(s)

Have a nice day!

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6 0
4 years ago
A balloon of air now occupies 5.0 L, at 25 celcius and 1.00 atm. What temperature was it initially, if it occupied 4.0 L and was
xenn [34]

Answer: A. 219K

Explanation:

Using the Combined Gas Law; P1 V1/T1 = P2V2/T2

Where P1 = 0.92 atm, P2 = 1.00 atm

           V1 =4.0 L,   V2 = 5.0 L

           T1 =  ?,  T2 = 25 celcius = 298K

We therefore make T1 the subject of the formular;

T1 = P1 . V1 .T2 / P2. V2

    = 0.92atm x 4.0L x 298K / 1.00 atm x 5.0 L

    = 1096.64 /   5

    = 219.328 approx  219K

5 0
4 years ago
The type of reaction in a voltaic cell is best described as a
SSSSS [86.1K]
I think the correct answer would be spontaneous oxidation-reduction reaction. The  type of reaction in a voltaic cell is best described as a spontaneous oxidation-reduction reaction. A voltaic cell uses the energy from the chemical reaction involved to produce electrical energy. Hope this answers the question.
4 0
3 years ago
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Explain why is sodium less reactive than potassium
leva [86]

Answer:

As potassium is larger than sodium, potassium's valence electron is at a greater distance from the attractive nucleus and is so removed more easily than sodium's valence electron. As it is removed more easily, it requires less energy, and can be said to be more reactive.

Explanation:

<em>Hope you're having a splendiferous day</em><em>.</em>

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