Which results when an atom has such a strong attraction for electrons that it pulls one or more electrons completely away from another atom?

Answers

Answer 1

Answer:

All people are tax people

-Turbo tax

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The concentration of an acid or base is defined as the ratio of the amount ofO A. solvent to the amount of solute in a solutionO B. conjugate acid to conjugate baseO C. conjugate base to conjugate acidOD. solute to the amount of solvent in a solution

Which compound is soluble in water?(1) PbS (3) Na2S(2) BaS (4) Fe2S3

Answers

The compound Na2S or Sodium sulfide is soluble inwater. This compound is a water-soluble salt that give strong alkalinesolutions. When exposed to air or humidity this compound gives-off hydrogen sulfidethat smells almost the same as rotten eggs.

This chemical is commonly used in the pulp andpaper industry. Sodium sulfide compounds are usually used in chemicalphotography, textile bleaching, making dyes, and even detergents.

The other 3 compounds are non-soluble in water. Theircompositions are mostly metal in nature and require other process to transformthem into different compound forms.

Answer;

(3) Na2S

Explanation;

All sodium salts are soluble in water. Therefore, sodium sulfide will be soluble in water.
All sodium, potassium, and ammonium salts are soluble in water. The chlorides, bromides, and iodides of all metals except lead, silver, and mercury are also soluble in water.
The sulfides of all metals except barium, calcium, magnesium, sodium, potassium, and ammonium are insoluble in water.

The pH scale for acids and bases ranges from

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0-14
0-6 is an acid
8-14 is a base
7 is neutral

Green plants use light from the sun to drive photosynthesis, a chemical reaction in which liquid water and carbon dioxide gas form aqueous glucose and oxygen gas. Calculate the molecules of water needed to produce ___ of oxygen. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits.

Answers

Photosynthesis is the process in which green plants and some other organisms that makes use of the energy from the sun, converts carbon dioxide and water into glucose (a sugar) and oxygen.

Equation

6 CO2 + 6 H2O → C6H12O6 + 6 O2

The number of moles of oxygen that can be obtained from 25g of water is

= 25g/ 6( (2*1)+(16) )= 25/108

= 0.23mol

Therefore 0.23moles of water yields 0.23 moles of oxygen

A cube measures 3.0 cm on each side and has a mass of 25g what is the density of the cube?

Answers

How do you find density?
Well, first D=m/v
D=density
M=mass
V=Volume

Volume of cube: 3*3*3=9cm cubed
Mass of cube: 25g
D=25g/9cm cubed
2.8 g/cm cubed is the answer.

Hope this helps!

Help on identifying the solute and solvent

Answers

Answer:

Solute is Lithium nitrate, and solvent is water.

Explanation:

Lithium nitrate is trigonal crystal which is soluble in water.

A tire at 21°C has a pressure of 0.82 atm. Its temperature decreases to –3.5°C. If there is no volume change in the tire, what is the pressure after the temperature change?

Answers

Using ideal gas equation, PV = nRT, and since there is no volume change and amount change, the equation is now P = kT, where k =nR/V. Temperature must be in kelvin From the given, k = (0.82)/ (21 + 273) = 2.78 x 10^-3 Substituting T = -3.5+273, P = 0.75 atm

it would be 0.75 atm

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Which is a unique feature of Jupiter? A. the least dense planet in the solar system B. the largest, most massive planet C. rotates on an axis tilted entirely sideways D. the most distant planet from the sun

For metalloids on the periodic table, how do the group number and the period number relate? A. The lower the group number, the lower the period numbers, so the metalloids are found in a diagonal moving down from left to right. B.The lower the group number, the higher the period numbers, so the metalloids are found in a diagonal moving up from left to right. C.The higher the group number, the lower the period numbers, so the metalloids are found in a diagonal moving down from left to right. D.The higher the group number, the higher the period numbers, so the metalloids are found in a diagonal moving up from left to right.

Which planet do scientists believe prevented the asteroids in the asteroids belt from forming a planet? A. Earth B. Jupiter C. Mars D. Neptune