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tatiyna
4 years ago
14

Please solve this problem. IT IS TOO URGENT ‍♂️​

Chemistry
1 answer:
kirill [66]4 years ago
4 0

Answer:

1. Sulphuric acid

2. Car battery acid

3. Washing up liquid

4. Milk of magnesia

5. Metal polish

6. Oven cleaner

Explanation:

Universal paper can determine the pH of a solution. It ranges from dark red (pH 0 - very acidic) to orange/yellow, to green (pH 7 - neutral) to blue, dark blue and purple (pH 14 - very alkaline)

Sulphuric acid has the lowest pH as the universal indicator is red.

The next is car battery acid which is pink - not as acidic as red.

The next is washing up liquid, which is yellow, around pH 3 or 4.

The next is milk of magnesia with light blue, around pH 9 or 10.

Metal polish is dark blue - around pH 11.

Oven cleaner is the darkest, with purple.

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Why does hot tea brew faster than cold tea? Provide scientific data.
Ksivusya [100]

Answer:

Increased heat makes all the molecules in the tea/water mix vibrate and move around a great deal more, thus increasing the rate of diffusion, and therefore increasing the rate of brewing.

Explanation:

hope i help lol :)

5 0
3 years ago
How many mL of 0.200M KI would contain 0.0500 moles of KI? <br><br> Please explain and show work.
valina [46]

Answer:

250ml

Explanation:

call it V

V*0.2=0.05 (moles)

so V=0.05/0.2 = 0.25l = 250ml

4 0
3 years ago
Read 2 more answers
Which statement best describes how an electromagnetic motor works?
inn [45]

Answer:

Electrons are moved through a magnet, creating a current. That current interacts with a circuit, moving the conductor in the orientation of the field.

Explanation:

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5 0
3 years ago
How do I write the formula for: Ferric hydrogen sulphate, Tungsten (V) peroxide, Nitric acid and Aluminum acetate? ...?
hram777 [196]
We write the following substances' chemical formula as follows:

Ferric hydrogen sulphate = Fe(HSO4)3.<span>
 
Tungsten (V) peroxide = </span>W2(O2)5<span>

Nitric acid = HNO3

Aluminum acetate = </span>C6H9AlO6

Hope this answers the question. Have a nice day.
<span>
</span>
7 0
3 years ago
Why is respiration an exothermic reaction?
Degger [83]

Answer: A large amount of energy is released into the surroundings.

Explanation:-

Endothermic reactions are defined as the reactions in which energy of the product is greater than the energy of the reactants. The total energy is absorbed in the form of heat and \Delta H which is difference between energy of products and energy of reactants come out to be positive.

Exothermic reactions are defined as the reactions in which energy of the product is lesser than the energy of the reactants. The total energy is released in the form of heat and \Delta H which is difference between energy of products and energy of reactants comes out to be negative.

Thus a reaction in which large amount of energy is released is categorized as exothermic reaction and thus respiration is also a exothermic reaction.

7 0
3 years ago
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