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3 years ago

Are all acids dangerous? Give at least two examples to show what you mean.

Chemistry

1 answer:

juin [17]3 years ago

4 0

Answer:

Laboratory acids are far too dangerous to taste, but you will have swallowed some dilute weak acids. Acids have a sour taste, like vinegar, which contains ethanoic acid, and lemons, which contain citric acid. These are safe to use in food, but they can still hurt if they get into a cut or into your eyes.

Explanation:

They can safely be consumed and do not irritate the skin. However, at greater concentrations weak acids can be harmful. Acids can react violently with water and are harmful in the presence of moisture in the mouth or eyes or in proximity with other aqueous solutions.

hope that helps!

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What is The strength of a hurricane is ranked from 1 to 5 on the _________________.

UkoKoshka [18]

Richter Scale.

Hope this helps!

8 0

3 years ago

31) To extend a length of 1.00 inches, 2.54 x 10^8 average sized atoms would have to be placed in a straight line (in other word

Phoenix [80]

Answer:

Here's the conversion factor you need:

1 Kilometer = 39370 inches

So, for your question we want to go 405,696 km....

405696 km x 39370 inches/ 1 km = 15972283464 inches

15972283464 inches x 2.54 x10^8 atoms/1 inch = 4.05 x 10^18 atoms

4 0

2 years ago

A hydrate is compound that included water molecules within its crystal structure. During an experiment to determine the percent

stellarik [79]

Answer:

The percent by mass of water in this crystal is:

21.4%

Explanation:

This exercise can be easily solved using a simple rule of three where the initial weight of the hydrated crystal (6,235 g) is taken into account as 100% of the mass, and the percentage to which the mass of 4.90 g corresponds (after getting warm). First, the values and unknown variable are established:

6,235 g = 100%
4.90 g = X

And the value of the variable X is found:

X = (4.90 g * 100%) / 6,235 g
X = approximately 78.6%.

The calculated value is not yet the percentage of the water, since the water after heating the glass has evaporated, therefore, the remaining percentage must be taken, which can be calculated by subtraction:

Water percentage = Total percentage - Percentage after heating.
Water percentage = 100% - 78.6% = 21.4%

4 0

3 years ago

Read 2 more answers

2Na(s) + 2H,O(l) — 2NaOH(?) + H, (g) 0 what is the missing symbol

Klio2033 [76]

Answer:

the symbol that is missing might be 2.

Explanation:

I am not 100% on this, so correct me if I am wrong.

3 0

2 years ago

How many grams of n2f4 can be produced from 225g f2?

3241004551 [841]

The answer is 615.91 grams of n2f4

Solution:
225g F2 x [(1molF2)/(38gramsF2)] x [(1molF2)/(1molN2F4)] x [(104.02 grams N2F4)/(1molN2F4)]
=615.91 grams

8 0

3 years ago