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Luden [163]
2 years ago
12

Pls help me guys, sos

Chemistry
2 answers:
RideAnS [48]2 years ago
6 0

Answer:

sorry I don't know please I am really sorry

zhenek [66]2 years ago
4 0

Answer:

In similarity, the farthest they get to being alike is, they both meet some forms of energy. They are different because light energy does not make sound, and sound energy cannot make light.

Hope it helps!

-science potato

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12. If a solution has a pH of 3, what would the pOH value of that solution be? *
butalik [34]

Answer:

The correct answer is pOH= 11

Explanation:

From the aqueous acid-base equilibrium we know that

pH + pOH = 14

If we know pH, we can calculate pOH as follows:

pOH = 14 - pH

In this problem, the solution has a pH of 3, so:

pOH = 14 - 3 = 11

8 0
2 years ago
Read 2 more answers
A chocolate bar weighs 4.00 ounces. If the chocolate delivers 2.78 calories per gram, how many
dimulka [17.4K]

Answer:

40.79

Explanation:

an ounce is equal to approximately 28.3 grams.

if you have 4 ounces then it would be equal to about 113.4 grams. then you would divide that by 2.78 which will equal about 40.8

6 0
3 years ago
Which of the following describes an irregular galaxy?
sertanlavr [38]

Answer:

D

Explanation:

They don't have define shape nor structure...so a random group of stars and no shape can form a irregular galaxy

5 0
3 years ago
Calcula la cantidad de gramos que hay en 12,5 mol de NaCl (Masa Na: 23,0; Cl: 35,5).
Anon25 [30]

Answer:

731.25 g

Explanation:

The question asks us to calculate the mass of 12.5 moles of NaCl. The individual relative atomic masses of the elements were supplied. We must first obtain the molar mass of sodium chloride as follows;

Molar mass of sodium chloride= 23.0 + 35.5 = 58.5 gmol-1

From the formula;

Number of moles (n) = mass /molar mass

Number of moles of sodium chloride= 12.5 moles

Mass of sodium = The unknown

Molar mass of sodium chloride= 58.5gmol-1

Mass of sodium chloride= number of moles × molar mass

Mass of sodium chloride= 12.5 × 58.5

Mass of sodium chloride= 731.25 g

4 0
3 years ago
The elements from which group would be most likely to react
timofeeve [1]

Answer:

Group 15

That is answer c

6 0
2 years ago
Read 2 more answers
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