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MaRussiya [10]
3 years ago
9

Which property of manganese dioxide helps it turn hydrogen peroxide into water faster than it would without it?

Chemistry
2 answers:
yKpoI14uk [10]3 years ago
6 0
I’m going to say B.
Katen [24]3 years ago
3 0

Answer:

B is the correct answer.

......Hopefully it it helpful.......

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The best thermometer to use where temperatures drop below -39°C (-38.2°F) is:_______.
xxTIMURxx [149]

Answer:

The best thermometer to use for this temperature is the alcohol-in-a -glass thermometer.

Explanation:

The alcohol thermometer is a type of thermometer which uses ethanol as its thermometric liquid. This has some advantages at low temperatures because ethanol freezes at about −114.9 °C  that is (−174.82 °F).

Due to its low freezing point, it can still function effectively as a thermometric liquid, expanding and contracting properly based on the applied heat,  when dealing with temperature measurements that are at about -38.2°F.

4 0
4 years ago
Azithromycin suspension dosing is 10 mg/kg/d and is available in 200mg/5ml doses. how many ml would a 25kg child receive daily?
bekas [8.4K]
The answer to this question is 6.25ml

To answer this question, you need to calculate the azithromycin drug doses for this patient. The calculation would be: 25kg * 10mg/kg/d= 250mg/d

Then multiply the doses with the available drug. It would be:
250 mg/d / (200mg/5ml)= 6.25ml/d
8 0
4 years ago
Methane is combusted with Oxygen to produce Carbon Dioxide and Water. How many grams of oxygen are required to react with 55 gra
Rom4ik [11]
The answer is B.110 g
7 0
3 years ago
Carbohydrates make up 75% of the mass of dried plant material. Cotton is at least 95% carbohydrate. Why do humans not include co
Darina [25.2K]

Answer:

the carbohydrates in cotton are mainly cellulose, but our body does not possess the proper enzymes to process cellulose, no we don't eat cotton on in our daily diet.

4 0
3 years ago
Significant figures are a measure of __________. an precise and accurate answer. the true value of a measurement. accuracy. prec
34kurt

Answer:

Significant figures are a measure of <u><em>precision</em></u>.

Explanation:

The significant figures of a number are those that have a real meaning and, therefore, provide some information. Therefore, the set of digits that are known with certainty in a measure are called significant figures and are the digits of a number considered non-null.

Any experimental measurement is inaccurate and must be expressed with its significant figures.

In this way, significant figures express the precision of a measuring tool.

6 0
3 years ago
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