Chemistry

Chemistry
Woeste275
2021-03-24 11:07:12
Which element, when combined with fluorine, will form an ionic compound? * oxygen bromine potassium nitrogen...
ANSWER
Chemistry
Holly562
2021-03-24 06:48:42
Petroleum can be separated by distillation because the hydrocarbons in petroleum are (1) elements with identical boiling points (2) elements with d...
ANSWER
Chemistry
kaitlynnchyanne
2021-03-24 06:13:27
A solution that contains a large amount of salt and a small amount of water is said to be a _______ solution.      A. unsaturatedB. concentr...
ANSWER
Chemistry
TiaLiLo
2021-03-24 05:49:57
Which of the following expressions is equivalent to molarity [M]? a. [M] = moles of solute volume of solution in liters b. [M] = grams of solute vo...
ANSWER
Chemistry
sweetsuites
2021-03-24 02:18:27
Given the equation representing a system at equilibrium: 2SO2(g) + O2(g) <==> 2SO3(g) At equilibrium, the concentration of (1) SO2(g) must equal ...
ANSWER
Chemistry
funlad2008
2021-03-24 01:19:42
Why did oceans not exist on Earth nearly 4 billion years ago? a. No water molecules were present. b. Water remained a gas because Earth was very ho...
ANSWER
Chemistry
Djdjdjdjdj
2021-03-24 01:07:57
— Convention with Britain established northern boundary of Louisiana Territory....
ANSWER
Chemistry
nitaoktavia56
2021-03-24 00:20:57
Which reaction is accompanied by the release of the greatest amount of energy? (1) combustion of 10. g of propane (2) electrolysis of 10. g of wate...
ANSWER
Chemistry
Haran
2021-03-23 23:57:27
what is the smallest particle?...
ANSWER
Chemistry
Ami718
2021-03-23 23:33:57
All of the atoms of argon have the same...
ANSWER
Chemistry
bookworm26957
2021-03-23 22:58:42
The two isomers of butane have different (1) formula masses (3) molecular formulas (2) empirical formulas (4) structural formulas...
ANSWER
Chemistry
MardellLeischner
2021-03-23 22:35:12
Given the reaction: CH4(g) + 2 O2(g) -->2 H2O(g) + CO2(g) What is the overall result when CH4(g) burns according to this reaction? (1) Energy is ...
ANSWER
Chemistry
BettieSassaman573
2021-03-23 21:01:12
Which statement correctly describes a sample of gas confined in a sealed container? (1) It always has a definite volume, and it takes the shape of t...
ANSWER
Chemistry
jvivo
2021-03-23 19:15:27
Which electron configuration is correct for a sodium ion? (1) 2–7 (3) 2–8–1 (2) 2–8 (4) 2–8–2...
ANSWER
Chemistry
Hardacre834
2021-03-23 18:40:12
Given the equation representing a system at equilibrium: N2(g) + 3H2(g)<==>2NH3(g) + energyWhich changes occur when the temperature of this system i...
ANSWER
Chemistry
farrah0405
2021-03-23 18:28:27
Which general trend is found in Period 3 as the elements are considered in order of increasing atomic number?(1) increasing atomic radius (2) increas...
ANSWER
Chemistry
quorratelma22
2021-03-23 18:16:42
Which subatomic particles are located in the nucleus of a carbon atom? (1) protons, only (2) neutrons, only (3) protons and neutrons (4) protons ...
ANSWER
Chemistry
JonGum
2021-03-23 17:06:12
A solution consists of 0.50 mole of CaCl2 dissolved in 100. grams of H20 at 25°C. Compared to the boiling point and freezing point of 100. grams ofH...
ANSWER
Chemistry
tzickmee
2021-03-23 16:42:42
What is the total number of neutrons in an atom of O-18? (1) 18 (3) 10 (2) 16 (4) 8...
ANSWER
Chemistry
16mjlafreniere
2021-03-23 16:30:57
Explain, in terms of subatomic particles, why the radius of a chloride ion is larger than the radius of a chlorine atom....
ANSWER
Chemistry
Aleurbina
2021-03-23 16:19:12
Change 2.6 km/day to m/week...
ANSWER
Chemistry
EarlIndovina
2021-03-23 13:58:12
Which sample of ethanol has particles with the highest average kinetic energy? (1) 10.0 mL of ethanol at 25°C (2) 10.0 mL of ethanol at 55°C (3)...
ANSWER
Chemistry
GrayceSydnes
2021-03-23 13:46:27
What change in volume results if 60.0 mL of gas is cooled from 33.0 °C to 5.00°C?...
ANSWER
Chemistry
icecream12423
2021-03-23 13:34:42
Compared to a 10-mole sample of NaCl(s), a 10-mole sample of NaCl(l) has a different (1) number of ions (2) empirical formula (3) gram-formula mas...
ANSWER
Chemistry
neeklove14
2021-03-23 12:35:57
Which ion combines with Ba2+ to form a compound that is most soluble in water? (1) S2- (2) OH- (3) CO32- (4) SO42-...
ANSWER