in the process of electricity, what flows through the wires?A) protons B)neutronsC)electronsD)positrons

Which of the following is/are part of the nitrogen cycle?

Pachacha [2.7K]

Denitrification is part of the nitrogen cycle

7 0

3 years ago

What is the difference between solute and solvent

ratelena [41]

Answer:

A solvent is a substance which dissolves a solute. When a solvent dissolves into a solute, it creates a solution

5 0

3 years ago

Determine the specific heat of copper from the fact that 38 g of 80°C copper are needed to raise the temperature of 15 g of wate

mars1129 [50]

From the equation q=mCΔT, set the q of copper = to q of water,

So --- mCΔT(copper)=mCΔT(water).

mass (Cu - copper) = 38g
mass (H2O - water) = 15g
C (H2O) = 4.184 J/g*C
ΔΤ (H2O) = 33-22 = 11*C
ΔΤ (Cu) = 33-80 = -47*C (the final temp is the same for both materials - thermal equilibrium)
C (Cu) = ?

So --- 38(-47)C[Cu]=15(4.184)(11)
--- C[Cu]=690.36/(-1786) = 0.3865 J/g*C, or 0.39 in 2 sig figs. (The negative goes away, because specific heats are usually positive)

5 0

3 years ago

What would happen if a cell membrane let too much water into a cell?

Sloan [31]

Answer:

<u>Animal Cell</u>

When water moves into an animal cell (e.g. a red blood cell), the cell membrane stretches and the cell gets bigger. If this continues, the cell membrane will burst – this is called lysis.

<u>Plant Cell</u>

When too much water moves out of a plant cell the cell contents shrink. This pulls the cell membrane away from the cell wall. A plasmolyzed cell is unlikely to survive.

8 0

2 years ago

Read 2 more answers

calcium is obtained industrially by electrolysis of molten cacl2 and is used in aluminum alloys. how many coulombs are needed to

Vinvika [58]

It takes 107 minutes 22 seconds and 96500 coulombs of charge produce 20.2 g of calcium.

The balanced equation for the reaction is,

$CaCl _{2} \:→ \: Ca ^{ 2 + } + 2Cl {}^{ - }$