The most common form of matter in the universe is _____.

Answers

Answer 1

Answer: The most common form of matter in the universe is plasma. A plasma is a hot ionized gas consisting of approximately equal numbers of positively charged ions and negatively charged electrons.

Answer 2

Answer:

The most common form of matter in the universe is _____.

plasma

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I REALLY NEED HELP WITH THIS CHEMESTRY PROJECT. I DO NOT UNDERSTAND ANYTHING OF THIS. CAN YOU GUYS PLZ HELP ME?Problem: You and your team work at Southern Nevada Water Authority and have been given the job of managing fluoride levels for the municipal water system. Today, you will need to measure the mass of the mineral sample fluorite (chemically, CaF2). Use this sample to determine how much water must be added to yield a 1 ppm fluoride solution. Your supervisor is requesting tanker trucks to bring the excess water. He needs to know how many tanker trucks to request and the total cost.Notes: 1 mol CaF2 = 78.08 g CaF2 = 6.02 x 1023 molecules of CaF21 molecules of CaF2 = 2 atoms of F1 mol H2O = 18 g H2O Density of water is 1 g/mL1000 mL = 1 L and 3.78 L = 1 gallonmass of sample of CaF2 = 287.185 g1 part per million = 1 atom of fluorine per 999,999 water molecules. 1 truck can carry 12,800 litters of water at a cost of $2,852.42 dollars.Before you begin mixing a solution of fluorite and water your team must first calculate the amount of water you will need. Your team will create a presentation that will show all of the necessary calculations to ensure that the greater Las Vegas area will have cavity free teeth. The presentation should include the following information:- Draw a diagram that points out the basic design of the water system and transport.- Demonstrate the following calculations (a) Calculate how many moles of mineral fluorite (CaF2) are in you sample. (b) Calculate the number of fluorine atoms in the sample of the mineral fluorite (CaF2). (b) Calculate how many molecules of water you will need. (c) Calculate the number of gallons of water that are needed to dissolve a 287.185 gram sample of fluorite to yield 1ppm solution.(e) How many trucks will be needed? Show your calculations!(f) what is will be the total cost?- Bonus points for creativity or “WOW” factor (i.e. pictures, color, neatness)!
Question 32(multiple choice worth 1 points) [01.04]what do scientists use to measure the mass of a substance? balance graduated cylinder measuring cup scale

SOMEONE HELP ME PLEASEEEE!!!
What is the outermost layer of the Earth called?

Answers

Answer:

the outermost layer called Crust

How many grams are in 2.3 moles of calcium phosphate, Ca3(PO3)2

Answers

moles = mass/molar mass
moles = 2.3
molar mass = 278
=> mass = moles*molar mass = 639.4g

In a solution made by dissolving 50 grams of calcium chloride in 1000 grams of water, which component is considered to be the solute?

Answers

Calcium chloride is the solute because it was dissolved in water.
Therefore water is the solvent.

Solute is a particle which gets dissolved in a solution. It is usually smaller than solvent in quantity.

Solvent is a particle which dissolves Solute in a solution. It is usually larger than solute in quantity.

In your case above, Calcium chloride is in less quantity, and thus, Calcium chloride shall be called solute.

Very Important!! Electron lender or borrower?i need to know if these elements lend or borrow electrons and how many do they lend or borrow.
-sodium
-phosphorus
-potassium
-oxygen
-iodine
-cesium
-bromine
-sulfur
-magnesium
Please answer!! Its really important..

Answers

Answer : Lending makes the element as cation (positively charged species) and borrowing makes the element as anion (negatively charged species).

Usually all the metal species donates the electrons and non-metals accepts (borrows) the electrons.

Sodium (Na) donates 1 electron and becomes $Na^(+)$ .

Phosphorus (P) accepts 3 electrons and becomes an anion of phosphorus $P^(-3)$ .

Potassium (K) donates its one electron and gets converted to $K^(+)$ .

Oxygen (O) accepts 2 electrons and turns as $O^(-2)$ .

Iodine (I) accepts one electron and gets converted into $I^(-)$ .

Cesium (Cs) donates 1 electron and turns to $Cs^(+)$ .

Bromine (Br) accepts 1 electron and turns as $Br^(-)$ .

Sulfur (S) accepts 2 electrons and becomes $S^(-2)$ .

Magnesium (Mg) donates its 2 electrons and gets converted as $Mn^(+2)$ .

Sodium lends 1 electron.
Phosphorus borrows 3 electrons.
Potassium lends one electron.
Oxygen borrows 2 electrons.
Iodine borrows one electron.
Cesium lends 1 electron.
Bromine borrows 1 electron.
Sulfur borrows 2 electrons.
And magnesium lends 2 electrons.

17. What standard reduction electrode has a half-cell potential of 0.00 V? Oxygen hydrogen
lithium
Fluorine

Answers

I believe Hydrogen is the standard reduction electrode that has a half-cell potential of 0.00 V. In electrochemical cell, an electric potential is created between two dissimilar metals. This potential is a measure of the energy per unit charge which is available from reduction or oxidation reactions to drive the reaction.

The mass of an object is constant, but its weight may change depending on:

Answers

Answer:

gravity

Explanation:

your mass is the same on the moon as is on earth or underwater but your weight changes because of gravity