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3 years ago

What do acids and bases have in common apex?

2 answers:

8 0

Both acids and bases produce a part of a water molecule. Bases dissociate hydroxide (–OH) ions and acids, hydrogen (H+) ions that when combined form water. Both are also very corrosive when they are strong enough that they fully dissociate in water.

tiny-mole [99]3 years ago

7 0

Explanation:

Acids are the substances that have pH less than 7. They are acidic in nature and have a sour taste.

Acids give hydrogen ions ( $H^{+}$ ) upon dissociation in water.

On the other hand, bases are the substances that have pH more than 7. They are basic in nature and have bitter taste.

Bases dissociate in water to give hydroxide ions ( $OH^{-}$ ).

Since, both acids and bases dissociate to give ions. Hence, we can conclude that both acids and bases are able to conduct electricity.

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A molecule has an empirical formula of ch, and its molar mass is known to be 26 g/mol. What is its molecular formula?.

Sonbull [250]

A molecule has an empirical formula of ch, and its molar mass is known to be 26 g/mol and the molecular formula is C₂H₂ ethyne

Molecular formula of compound is (CH)n and the given molar mass is 26g/mol

Molar mass of (CH)n, C=12=n(12+1)=13n

So 13n and n=2

=13×2=26 and given molar mass is also 26g/mol

So here two carbon and two hydrogen so molecular formula is C₂H₂ and name is ethyne

Know more about molecular formula

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7 0

2 years ago

Pls pls help<br> Pls pls pls help

asambeis [7]

Question 3

Explanation:

answer -A /A chemical reaction happens when substances break apart or combine to form one or more new substances. New substances form when bonds break and new bonds form. The chemical properties of the new substances are different from those of the original substances. ... Some chemical reactions produce a precipitate.

answer- B /Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products

3 0

2 years ago

<br> Determine the frequency of a green laser with a wavelength of 532nm.

const2013 [10]

Answer:

$5.64*10^{14}$ m

Explanation:

C = Fλ

C: Speed of light = $3*10^8$ m/s

f: Frequency (Hz)

λ: Wavelength (m)

Rearrange formula for wavelength:

C/F = λ

$\frac{3*10^8}{532*10^{-9}} =5.64*10^{14}m$

6 0

3 years ago

Which of these processes removes carbon from

GenaCL600 [577]

Answer is c photosynthesis

3 0

3 years ago

If a pharmacist adds 10 ml of purified water to 30 ml of a solution having a specific gravity of 1.30, calculate the specific gr

xxMikexx [17]

The specific gravity of a sample is the ratio of the density of the sample with respect to one standard sample. The standard sample used in specific gravity calculation is water whose density is 1 g/mL. The solution having specific gravity 1.30 is the density of the sample that is 1.30 g/mL. Thus the weight of the 30 mL sample is (30×1.30) = 39 g.

Now the mass of the 10 mL of water is 10 g as density of water is 10 g/mL. Thus after addition the total mass of the solution is (39 + 10) = 49g and the volume is (30 + 10) = 40 mL. Thus the density of the mixture will be $\frac{49}{40}=1.225$ g/mL. Thus the specific gravity of the mixed sample will be 1.225 g/mL.

6 0

3 years ago