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Snezhnost [94]
3 years ago
13

When dissolved in water, which of the following would conduct electricity the best?

Chemistry
1 answer:
Nitella [24]3 years ago
6 0
Charged particles or ionic particles?
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If a yellow paint is to have 0.511% pbcro4 by mass, how many grams of chromite are needed per kilogram of paint?
Hitman42 [59]

Yellow paint has 0.511 % PbCrO4 by mass

Mass of PbCrO4 in 1 kg of paint = (0.511 / 100) * 1 kg = 0.00511 kg = 5.11 g

Moles of PbCrO4 = 5.11 g/ 323.19 g/mol

                           = 0.0158 moles

Moles of K2CrO4 also = 0.0158 moles

Moles of FeCr2O4 = 0.0158 moles K2CrO4 * (4 mole FeCr2O4 / 8 moles K2CrO4)

                            = 0.0079 moles

Mass of FeCr2O4 (chromite) = 0.0079 moles * 223.83 g/mol

                                            = 1.77 g

Paint is a colored liquid, liquefiable, or solid mastic composition that transforms into a thin solid film after being applied to a substrate. Most commonly used for protection, coloring, or adding texture. Paints come in a variety of colors and can be made in a variety of ways.

Paint consists of pigments, solvents, resins, and various additives. Pigments give the paint its color. Solvents make application easier. The resin helps dry. Additives range from fillers to antifungal agents. There are hundreds of different natural and synthetic pigments.

Learn more about  paint here

brainly.com/question/17996239

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5 0
1 year ago
If you had a sample containing 55 alpha particles, how many protons would be present in that sample? Show all necessary work.
arlik [135]
An alpha particle is a helium nucleus without the electrons - 2 neutrons and 2 protons.

So, all you would have to do is 2 x 55, which equals 110.

8 0
3 years ago
Open Ended
kakasveta [241]

Answer:

Explanation:

21. Atoms are not created or destroyed means that atoms that you begin with are the atoms that you will end with. The catch is that the atoms will rearrange to give you new compounds, but the atoms that you initially had are the atoms you will still have after reaction. For eg, if you started with eggs and made omelet. Omelet is a "new" compound, but the atoms that were in the eggs have rearranged to become the omelet so can you see that atoms were not created or destroyed to make the omelet.

22. Yes because amount of products you make depends on how much reactants you have. For eg, I need two graham cracker(GC), one marshmallow(M), and one chocolate (C) to make a s'more. If I get more of each item then I can make more s'mores and consequently having minimum amounts results in less s'mores that I make.

23. Not possible, due to law of conservation of matter and energy. Atoms cannot be created nor be destroyed, they are simply rearranged. For eg, Taking A + B cannot give you a new compound with a chemical formula D or XZ. A + B can however give you AB which is rearrangement of the starting atoms.

24. Chemical equation is balanced when atoms on reactant side and atoms of product side are in equal counts. I have attached a graphic below for more help.

4 0
3 years ago
which of the following is the most wasteful use of water? taking a shower rather than a bath watering the garden with recycled w
kvasek [131]
Water running dish washer
5 0
3 years ago
Read 2 more answers
In which state of matter do particles have the least amount of energy
kogti [31]

Answer:

solid

Explanation:

8 0
3 years ago
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