Which one is often used in magnets gold or cobalt?

Answers

Answer 1

Answer:
Cobalt is often used because it react to magnets while gold does not react to magnets.

Answer 2

Answer: It is cobalt because gold doesnt have an effect on magnet so it is the only logical explanation

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What is number 1 and 2

Answers

the second one is rite..... the first one is solution good luck ...i hope i helped you....

Number one is Solution
Number two is
Right

How many moles of oxygen react with hydrogen to produce 22.8 mol of H2O? The balanced equation is as follows: 2H2 + O2 → 2H2OHow many grams of CO2 are produced if 35.48 mol of HCl are reacted according to this balanced chemical equation? CaCO3 + 2HCl → CaCl2 + CO2 + H2O

Answers

2H₂ + O₂ → 2H₂O
$(22.8 mol H2O)/(1)$ * $(1mol O2)/(2 mol H2O)$ =
11.4 mols O₂

CaCO₃ + 2HCl → CaCl₂ + CO₂ + H₂O
$(35.48molHCl)/(1) * (1 mol CO2)/(2 mol HCl) * (44.01 grams CO2)/(1 mol CO2)$ =
780.7 grams CO₂

hope this helped!

What’s the molar mass of Lead-208

Answers

Lead is a basic metal and almost 11 isotopes of Lead are reported. The isotopes with greater natural abundance are as follow;

1) ²⁰⁸Pb with abundance 52.4 %

2) ²⁰⁶Pb with abundance 24.1 %

3) ²⁰⁷Pb with abundance 22.1 %

4) ²⁰⁴Pb with abundance 1.4 %

Molar mass of ²⁰⁸Pb:

Molar mass of any element is the total of number of protons, neutrons and electrons.
As, number of protons in Lead are 82 then in ²⁰⁸Pb isotope number of neutrons are...

# of Neutrons = M.mass - # of protons

# of Neutrons = 208 - 82

# of Neutrons = 126

Result:

Molecular Mass of Lead (²⁰⁸Pb) is 208 amu.

# of Protons in ²⁰⁸Pb = 82

# of Neutrons in ²⁰⁸Pb = 126

How much energy is wasted as heat by an incandescent light globe

Answers

Electric current passes through a filament of an incandescent bulb, thereby increasing it temperature. When current flows, it contains electrons through the filament to produce light. Typically, incandescent light bulb consists of a glass enclosure that contains tungsten filament. The glass enclosure contains either a vacuum or an inert gas that serves as the filament protection from evaporating. Incandescent light bulbs contain a stem attached at to its base to allow the electrical contacts to run through the envelope without gas or air leaks.

If an orange is orange, why isn't a lime called a green or a lemon called a yellow?

Answers

A lime is called a lime because it's lime in colour and a lemon is called lemon because it's lemon in colour. Just to change the subject slightly why is a fly called a fly? - because it flies - so if a fly didn't have wings would it be called a walk. We could go on and on with this couldn't we and have a lot of fun too :)

What is matter im confused

Answers

Matter is pretty much solids, liquids, and gases

matter is the gavity in which it is also any subject that you could find

Other Questions

1Which is a dopant for a p-type semiconductor?arsenicindiumphosphorusantimony2Which statement is true for both types of transistors?Current flows from the collector to the emitter.Current flows from the base to the emitter.The base is between the collector and the emitter.The base is a p-type semiconductor.3 Which explains whether boron or arsenic is the dopant most likely used in the semiconductor layer marked with +?This layer is the controller of an NPN transistor, so it could include boron.This layer is the emitter of an NPN transistor, so it could include arsenic.This layer is the controller of a PNP transistor, so it could include arsenic.This layer is the emitter of a PNP transistor, so it could include boron.4 What can a transistor do in order to fulfill its function in a circuit? Check all that apply.control which layer is the emittercontrol its own semiconductancechange the dopants in the transistor act like an insulatoract like a conductor5Which lists the layers in a PNP transistor from the least negative to the most negative?emitter, base, collectorbase, emitter, collectorcollector, base, emittercollector, emitter, base6Roland writes a story in which boaters become stranded on a sandy island. In the story, they set about collecting materials to create semiconductors to repair computer components in their radio.Which problem is likely to be the most difficult for Roland’s characters to overcome?There are no semiconductor elements on the island.Any substances they find are too impure.They lack materials to make a p-type semiconductor.No conductors are available to connect the components.

What is the zero point 0,K on the kelvin scale called?

Can someone please help me in number 1 and 2 thankss

Compared to the charge of a proton, the charge of all electron has(1) a greater magnitude and the same sign (2) a greater magnitude and the opposite sign (3) the same magnitude and the same sign (4) the same magnitude and the opposite sign