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julia-pushkina [17]
2 years ago
6

Which statement is true of a rock layer that had another rock layer deposited on top of it?​

Chemistry
1 answer:
Karo-lina-s [1.5K]2 years ago
6 0

Answer:

second rock...I know it

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Erosion and weathering can both cause changes to the surface of Earth. Which of the following happens only because of erosion an
dangina [55]

Answer:

caves

Explanation:

BRAINLIEST

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7 0
3 years ago
What effect does filtration have on water with a ph of 3?
creativ13 [48]

Answer:

None  

Step-by-step explanation:

A high pH is caused by an excess of hydrogen ions over hydroxide ions.

Hydrogen ions are so small that they pass through the pores of an ordinary filter.

Thus, ordinary filtration has no effect on the pH of water.

4 0
3 years ago
How many atoms are in 0.250 moles of Rb?
Helen [10]

Answer:

1.51*10^23 atoms Rb

Explanation:

Use dimensional analysis

5 0
3 years ago
What is the pOH of a 0.025 M [H+] solution?
MaRussiya [10]
POH=14-pH

pH=-lg[H⁺]

pOH = 14 + lg0.025 = 12.4
5 0
3 years ago
Read 2 more answers
In a laboratory experiment the reaction of 3.0 mol of H2 with 2.0 mol of I2 produced 1.0 mole of HI. Determine theoratical yield
Kobotan [32]

Answer:

Theoretical yield of HI is 512 g.

The percent yield for this reaction is 25%.

Explanation:

H_2+I_2\rightarrow 2HI

Moles of hydrogen gas = 3.0 moles

Moles of iodine gas  = 2.0 moles

According to reaction 1 mol of hydrogen gas reacts with 1 mol of iodine gas.

Then 3.0 moles of hydrogen gas reacts with 3.0 mol of iodine gas. But there are 2.0 moles of iodine gas. Hence,Iodine is a limiting reagent. The production of HI will depend upon iodine gas moles.

According to reaction , 1 mol of iodine gas gives 2 moles of HI.

Then 2 moles of iodine gas will give:

\frac{2}{1}\times 2 mol=2 mol of HI

Theoretically we will get 4 moles of HI.

Theoretical yield of HI =  4 mol × 128 g/mol= 512 g

Experimental yield of HI = 1.0 mol

= 1 mol × 128 g/mol= 128 g

\%yield=\frac{\text{Experimental yield}}{\text{Theoretical yield}} \times 100

\%yield=\frac{128 g}{512 g}\times 100=25\%

The percent yield for this reaction is 25%.

6 0
2 years ago
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