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iren [92.7K]
3 years ago
5

Which property of water makes it helpful to use in car radiators?

Chemistry
1 answer:
Readme [11.4K]3 years ago
4 0
According to the main characteristics of water, the <span>property of water  which makes it helpful to use in car radiators is being shown in the last opton from the scale : </span><span>C) Water takes long to heat and cool down than other liquids. Such property is the only one that logically suits the task.
I'm sure it helps!</span>
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Why is it correct to say seawater is a mixture.
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It's a mixture of H2O + a soluble substance like, salt.
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The excretory system is idk and i really dont care
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What evidence do you see that a chemical reaction is taking place when you add hydrogen peroxide to potassium ioxide??
Yuri [45]

Answer:

Bubbling/Foaming

Heat is produced

Explanation:

A chemical reaction has occurred if

1. There is a change in colour

2. Formation of a precipitate

3. Formation of a gas

4. Change in temperature

5. Change of smell

In the reaction of hydrogen peroxide and potassium iodide, the solution quickly rises which shows the formation of gas. This means it is a chemical reaction.

The beaker/test tube/whatever you used should also become warm because it is an exothermic reaction. This means its a chemical reaction

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3 years ago
This element is a liquid at room temperature.<br> (A) Hg<br> (B) Th<br> (C) Na<br> (D) Cl<br> (E) Co
gulaghasi [49]
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7 0
3 years ago
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Archeologists can determine the age of artifacts made of wood or bone by measuring the amount of the radioactive isotope 14C pre
Ahat [919]

Answer: The age of the tool is 15539 years

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  

t = age of sample

a = let initial amount of the reactant = 100

a - x = amount left after decay process = \frac{15.5}{100}\times 100=15.5  

a) for completion of half life:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.  

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b) for 15.5 % of original amount

t=\frac{2.303}{0.00012}\log\frac{100}{15.5}

t=15539years

Thus age of the tool is 15539 years

8 0
3 years ago
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