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Mars2501 [29]
3 years ago
10

In a laboratory, you scratch an unknown mineral on a piece of unglazed porcelain. Which property are you trying to determine?

Chemistry
2 answers:
Lina20 [59]3 years ago
7 0

Answer:

streak

Explanation:

You rub a mineral across an unglazed porcelain plate to determine the streak. The hematite shown here has a red-brown streak. Streak is the color of the powder of a mineral. To do a streak test, you scrape the mineral across an unglazed porcelain plate

Vikki [24]3 years ago
4 0
You are tying to determine the color
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Answer:5.4 g / 13.6 g *100

Explanation:Its is the correct answer

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3 years ago
Write 3 to 5 sentences about predicting the properties of acids and bases​
Nataly_w [17]

Answer:

cause of the properties of their aqueous solutions. Those properties are outlined below:

Aqueous solutions of acids are electrolytes, meaning that they conduct an electrical current. Some acids are strong electrolytes because they ionize completely in water, yielding a great many ions. Other acids are weak electrolytes that exist primarily in a non-ionized form when dissolved in water.

Acids have a sour taste. Lemons, vinegar, and sour candies all contain acids.

Acids change the color of certain acid-base indicators. Two common indicators are litmus and phenolphthalein. Blue litmus turns red in the presence of an acid, while phenolphthalein turns colorless.

Acids react with active metals to yield hydrogen gas. Recall that an activity series is a list of metals in descending order of reactivity. Metals that are above hydrogen in the activity series will replace the hydrogen from an acid in a single-replacement reaction, as shown below:

text{Zn}(s)+text{H}_2text{SO}_4(aq)rightarrow text{ZnSO}_4(aq)+text{H}_2(g)

Acids react with bases to produce a salt compound and water. When equal moles of an acid and a base are combined, the acid is neutralized by the base. The products of this reaction are an ionic compound, which is labeled as a salt, and water.

[10/31, 6:00 PM] Jana Taher: Bases have properties that mostly contrast with those of acids.

Aqueous solutions of bases are also electrolytes. Bases can be either strong or weak, just as acids can.

Bases often have a bitter taste and are found in foods less frequently than acids. Many bases, like soaps, are slippery to the touch.

Bases also change the color of indicators. Litmus turns blue in the presence of a base while phenolphthalein turns pink.

Bases do not react with metals in the way that acids do.

Bases react with acids to produce a salt and water.

Please note that tasting chemicals and touching them are NOT good lab practices and should be avoided in other words, don’t do this at home.

8 0
3 years ago
Are frosted flakes healthier than fruit loops?
Komok [63]

Answer:

The answer is below!!

Explanation:

Although Frosted Flakes are higher in sugar than other cereals and often not considered diet food, they can be part of a healthy weight-loss plan. Cereals that are low in calories and fat content such as Frosted Flakes may help you lose weight.

“Froot Loops is an excellent source of many essential vitamins and minerals and it is also a good source of fiber with only 12 grams of sugar,” said Celeste A. Clark, senior vice president of global nutrition for Kellogg's, which makes Froot Loops.

Hope I Helped!!

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4 0
2 years ago
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What is the number of electrons shared between the carbon atoms in a molecule of ethane
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One electron is shared between ethane, H3-C-C-H3
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