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3 years ago

What turns colour in an acid and base

Chemistry

2 answers:

Mrac [35]3 years ago

4 0

Answer:

Chemists use a solution called Universal Indicator to identify acids and bases. ... The Universal Indicator Color Guide shows that Universal Indicator turns red when it is added to a strong acid, it turns purple when it is added to a strong base, and it turns a yellowish-green when it is added to a neutral solution.

Explanation:

FrozenT [24]3 years ago

4 0

Answer:

Phenolphthalein

Explanation:

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Convert 55 m3 to liters

luda_lava [24]

Explanation:

<h3>hope it help you thanku byy </h3>

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.mark it brainlist

4 0

2 years ago

Plzz help its science

Aleks04 [339]

The efficiency : 95%

<h3>Further explanation</h3>

Efficiency : the ratio between output and input work

In general, the value of the output of a machine is less than the value of the input because of the frictional force in the machine.

The greater the efficiency of the engine, the better the machine

Can be formulated :

$\tt E=\dfrac{W_{out}}{W_{in}}\times 100\%$

w output = 190 J

W input = 200 J

The efficiency :

$\tt E=\dfrac{190}{200}\times 100\%=95\%$

7 0

3 years ago

If you have 200 grams of SO4, how many molecules of SO4 will you have?

den301095 [7]

Answer:

2.08 moles

Explanation:

number of molecules = mass / molecular mass of SO₄

number of molecules = 200 g / 96.06 g/mol

number of molecules ≈ 2.08

6 0

3 years ago

Read 2 more answers

Identify this vocabulary word: the process of breaking down glucose for the production of ATP

Aloiza [94]

Answer:

Cellular respiration

Explanation:

Fermentation is a mechanism in anaerobic respiration(breaking down glucose in the absence of oxygen). Examples are lactic acid fermentation is humans, Alcohol fermentation in yeast.

Cellular respiration sums up both anaerobic and aerobic(with oxygen)

Metabolism is just breaking down food molecules chemically into their simplest forms (monomers). These monomers then undergo cellular respiration to produce ATP

4 0

3 years ago

What is the difference between the compounds Fe2O3 and FeO? Why are they not both called simply iron oxide?

Kitty [74]

There is a big different. Iron (Fe) is a transitional metal. these type of metals are known to have different "versions" of the same element with different charges. Iron has two ions, Fe+2 and Fe+3. so the molecular formula varies depending on which iron ion you have.

Oxygen is a nonmetal and it will always have the same charge, -2.

remember that when you put two atoms together, you "cross" the charges and put them as a suffix. I have attached a picture as a visual aid of how to do this.

so, if you put together Fe+2 and oxygen you can get Fe2O2, which simplifies to FeO since the have the same suffix.this compound is called Iron (II) oxide because the iron is the one with charge +2.

so, if you put together Fe+3 and oxygen you can get Fe2O3. this compound is called Iron (III) oxide because the iron is the one with charge +3.

7 0

3 years ago