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3 years ago

13

A high pH value indicates _____.

1 answer:

Mumz [18]3 years ago

3 0

Answer:

A high pH value indicates a high concentration of OH- ion

Explanation:

The higher the OH- ion concentration high will be the pH.In simple words if the concentration of OH- ions are increased then the pH of the solution will also increase which means the solution will turns towards basic with increasing its OH- ion concentration.

Let us assume that the OH- concentration of a solution is 10-9 so the pOH of that solution will be 9 and the pH will be 5.

Now the concentration of OH-ion of that solution is increased from 10-9 to 10-8 now the pOH of that solution is 8 and the pH is 6.

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You have three elements, A, B, and C, with the following electronegativity values:

DerKrebs [107]

#AB

Electronegativity difference=3.3-2.9=0.4.

It's a covalent bond.
Gaseous or solid substance.

#AC

Electronegativity difference=3.3-0.7=2.6

Its an ionic bond.
Solid substance.

#BC

Electronegativity difference=2.9-0.7=2.3

It's an ionic bond
Solid substance

6 0

2 years ago

6. Plants play a vital role in the environment because photosynthesis

Vanyuwa [196]

Answer:

C

Explanation:

Plants help in carbon dioxode reduction so plants uses atmospheric carbon dioxide and water to produce sugars and oxygen.

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6 0

3 years ago

Read 2 more answers

Can someone help me with this molar mass problem?[It’s the last one]

quester [9]

Answer:

$54.18 \times 10^{23} \ moles$ in 3 mole of $Al_2(SO_4)_3$

Explanation:

It is clear that in the given $1\ mole$ of $Al_2(SO_4)_3$ have $3\ ions$ of $SO_4^2^-$

Therefore 3 moles of $Al_2(SO_4)_3$ will have $3\times3=9 \ ions$ of $SO_4^2^-$

Since 1 ion of anything is equivalent to $6.02\times10^{23} \ moles$

Therefore 3 moles of $Al_2(SO_4)_3$ will have $3\times3=9 \ ions$ of $SO_4^2^-$

Which is equivalent to $9 \times6.02\times10^{23}=54.18\times10^{23} \ moles$

Thus 3 moles of $Al_2(SO_4)_3$ gives $54.18\times10^{23} \ moles$ of $SO_4^2^-$ .

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3 years ago

Which statement best describes how Carl Woese changed the system of classification?

Nadya [2.5K]

Answer: C.)

Explanation:

i got it right on a unit test!

but it might be something else if there arranged different!

sorry!

8 0

3 years ago

Read 2 more answers

ANSWER ASAP!!!! PLS HELP

tamaranim1 [39]

Answer: increase

Explanation: as pressure is increased, equlilibrium shifts towards the side with less moles of gas.

6 0

2 years ago