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valina [46]
3 years ago
14

HI PLEASE HELP!!!!

Chemistry
2 answers:
Crazy boy [7]3 years ago
8 0

Answer:

I believe it's A generally increases may be wrong

zepelin [54]3 years ago
6 0
Answer is a hope this helps
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How does vegetation on river banks affects erosion
zhenek [66]

Answer:

Results of this research indicated woody riparian vegetation reduced the susceptibility of stream bank soils to erosion by fluvial entrainment. ... In addition to reinforcing the stream banks, riparian vegetation also affected soil moisture and altered the local microclimate.

Explanation:

basically it helps the ground to stay in place.

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3 years ago
True or false? Recycling metal reduces fuel costs as less metal ore needs to be mined and transported.
chubhunter [2.5K]

Answer:

True

Explanation:

True.

Recycling of metal means that there is a reduction in the cost of fuel, since much lesser metal ore would have to be mined and eventually transported. Recycling of metal also means saving of energy since we won't be mining ores from the beginning all over again, as compared. There is lesser number of quarries needed as well.

4 0
3 years ago
How much of a 15.0M stock solution do you need to prepare 250ml of a 2.35ml hf solution?
Svetradugi [14.3K]
Using the relationship M1V1 = M2V2 where M1 and M2 are the molar concentrations (mol/L or mmol/ml) and V1 and V2 are the volumes of the solutions, we can arrive at the following answer for the given problem:

<span>15.0M (L of stock solution) =  2.35M (0.25L) *all volumes were converted to liters.

L of stock solution = (2.35*0.25)/15.0

Therefore, 0.0392L or 39.17 ml of stock solution is needed. </span>
3 0
3 years ago
A person uses 770 kcal on a long hike. Calculate the energy used for the hike in each of the following energy units.
Pavlova-9 [17]

Explanation:

1 Cal of energy is equivalent to 4.184 Joules.

A.

770Cal of energy = 3221.680 joules

Therefore, 780kCal of energy = 3221680 Joules.

B.

3200000 Joules (in 2 s.f).

C.

I000 joules = 1 kJoule

3221680 joules = 3221.689 kJoules.

D.

3200 kJ (in 2 s.f).

5 0
3 years ago
If electrons were used in the two slit experiment instead of light, what change would need to be made to the slit spacing in ord
irina [24]
The change that would need to be made to the slit spacing in order to see a diffraction pattern is bending, because in understanding why light behaves like a wave, it is the interference and diffraction were the phenomena distinguish waves from particles but waves are the only one can interfere and diffract while particles do not. The light bends around obstacles or cylinder like waves do, then it is bending which cause and resulted in the single slit diffraction pattern. 
5 0
3 years ago
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