Questions LLC
Login
or
Sign Up
Ask a New Question
Chemistry
Page 20
Questions (96,475)
Use the image to answer the question.
An illustration shows two cubes. The cube on the top is labeled Nitrogen (N2). Inside this
3 answers
asked by
blasting music in my ears rn
183 views
if Ca and F atoms are allowed to react what will be the electron configurations and lewis structures of the resultant ions?
4 answers
asked by
Maci
1,950 views
When copper(II) nitrate reacts with sodium hydroxide, copper (II) hydroxide is produced. How many grams of Cu(OH)2 can be
5 answers
asked by
Ethan
2,660 views
What is the net ionic equation when NaOBr is dissolved in water and the Ksp if the Ksp of the dissocataion of HOBr is 6.4 *
4 answers
asked by
james
2,200 views
What happens to Atoms of Fe and O2 during reaction
9 answers
asked by
Anonymous
3,567 views
(1) A sample of the hydrate CuSO4.5H2O has a mass of 12.5g. (a) how many molecules of hydrogen are contained in this hydrate? If
7 answers
asked by
chancy xdicey
2,940 views
Which term describes the repeated arrangement of the molecule?
A. Bonds B. Atoms C. Molecular Model D. Extended Structure
13 answers
asked by
Zeppeli
6,783 views
An atom of gold has a mass of 3.25x10^-22.What is the mass of 8000 atoms?Express in scientific notation.
6 answers
asked by
Nabela
5,143 views
There are two alloys consisting of zinc, copper and tin. The first alloy contains 25% zinc and the second alloy contains 50%
4 answers
asked by
Tamasa
948 views
Calculate the density of sulfur hexafluoride gas at 703 torr and 23°C.
density is mass/volume so how do i get those from what i
5 answers
asked by
Samantha
8,428 views
Six teaspoons of extract are mixed with 240 ml of oral suspension what is the final concentration of the suspension?
5 answers
asked by
Michelle
3,217 views
What would be the ph of a 0.20M CH3COOH solution if no salt were present?
5 answers
asked by
Lazima Hassan
2,200 views
Calculate the heat of combustion of candle wax in kJ/mole. The standard heat of formation (∆Hf ) of candle wax (C20H42) is
4 answers
asked by
emma
1,689 views
A drinking glass at a crime scene contains a clear colorless liquid that may be water or alcohol. As the investigator, you know
10 answers
asked by
Brianna
4,826 views
When magnesium oxide (MgO) and water (H20)react, they produce magnesium hydroxide Mg(OH)2. Magnesium hydroxide is a medicine
6 answers
asked by
Bobby
2,341 views
FeCl3 + 3H2O → Fe(OH)3 + 3HCl
Element Mass of an Atom (amu) Fe 56 Cl 35 H 1 O 16 Iron chloride and water react according to the
7 answers
asked by
Jeremiah
2,614 views
What is 3NaOH stand for.
4 answers
asked by
Natalie Dill
477 views
Carbon dioxide gas and solid lithium hydroxide yields solid lithium carbonate and water
4 answers
asked by
Jya
3,087 views
on heatin, 0.02mol of the element M reacts with 0.025mol of oxygen gas. What is the empirical formula of the oxide of M?
The mole
3 answers
asked by
Cynthia
1,060 views
If the heat of combustion of 1-butanol (C4H9OH) is 2,710 kJ/mol, what mass of oxygen is consumed when enough 1-butanol is burned
4 answers
asked by
Blake
3,341 views
The standard enthalpy change of the reaction:
C2H4(g)+H2O(g)=C2H5OH(l) can be calculated from standard enthalpy changes of
4 answers
asked by
Anonymous
1,106 views
Among the following Ka values, which represents the strongest acid?
A. Ka = 1.2 x 10-3 B. Ka = 3.4 x 10-5 C. Ka = 8.7 x 10-8 D.
4 answers
asked by
louren
4,401 views
KMnO4 + HCl → MnCl2 + Cl2 + H2O + KCl
If the reaction occurs in an acidic solution where water and H+ ions are added to the
4 answers
asked by
Summer
1,460 views
Phosphoric acid is triprotic acid (three ionizable hydrogens). The values of its stepwise ionization constants are Ka1= 7.5E-5,
6 answers
asked by
NIKITA
5,838 views
Explain the reaction that would occur in a galvanic cell between solutions of Al3+ and Pb2+. Identify the oxidation and
4 answers
asked by
Callie
2,285 views
A student mixes 35.0 mL of 2.82 M Pb(NO3)2(aq) with 20.0 mL of 0.00221 M Na2C2O4(aq). How many moles of PbC2O4(s) precipitate
5 answers
asked by
Anon
4,370 views
Lily is very happy with the fuel efficiency of her new car. She estimates that she can drive 14 km per litre of gas. What is the
7 answers
asked by
Emma
1,448 views
is apple to apple juice reversible or irreversible?
4 answers
asked by
eggo
332 views
56g of N2 reacts with 30g of H2 to form NH3.Calculate the number of moles of NH3 formed.
4 answers
asked by
Anina Anna Charley
4,595 views
Consider the following reaction: 2 Mg + O2 → 2 MgO ΔH rxn = -1203 kJ
Calculate the amount of heat (in kJ) associated with
5 answers
asked by
Chemistry
6,428 views
Would my calculated molarity of HOAc in vinegar be too high, low, or unchanged if
a) i forgot to rinse wet buret with vinegar
4 answers
asked by
Matty
2,965 views
A bottle of 12.0 M hydrochloric acid has only 35.7 mL left in
it. What will the HCl concentration be if the solution is diluted
4 answers
asked by
Alexandra
4,067 views
An aqueous solution of calcium chloride boils at 101.3. How many kilograms of calcium chloride were dissolved in 1000 g of the
5 answers
asked by
Nita
2,906 views
How many gram of hydrogen chloride acid containing 10% by mass of hydrogen chloride acid would be required to dissolve 13g of
5 answers
asked by
Mercy
1,205 views
Which aqeuous solution has a freezing point closest to that of 0.30M C12H22O11?
A) 0.075M AlCl3 B) 0.15M CuCl2 C) 0.30M NaCl D)
4 answers
asked by
Vic
2,463 views
Vinegar contains ethanoic acid (CH3OOH).titration of 3.00g of vinegar with 0.12M NAOH Solution requires 23.0cm3 to reach the
5 answers
asked by
Ekekhide
1,175 views
When 10.00 g of iron is burned in O2(g)to form Fe3O4 (s) , enough heat is generated to raise the temperature of 784 g of water
6 answers
asked by
Kyle
3,360 views
What is the molecular geometry shape for H2GeO and is Sel2 polar or non polar. Thanks
4 answers
asked by
Chemistry
5,750 views
A voltaic cell consists of Mn/Mn2+ and Cd/Cd2+ half-cells with the following initial concentrations: [Mn2+] = 0.090 M; [Cd2+] =
4 answers
asked by
stumped
7,059 views
Given the following balanced equation, determine the rate of reaction with respect to [O2].
2 SO2(g) + O2(g) → 2 SO3(g)
4 answers
asked by
Rose
6,995 views
11. The freezing point of a substance is ____ the melting point of the same substance. (1 point)greater than
less than equal to
5 answers
asked by
NIKE
2,418 views
What would be the effect on the percent acetic acid if 30 mL of vinegar had been used in place of 50 mL? Explain?
4 answers
asked by
Gwyneth
1,352 views
How many moles of Cu are produced when 0.25 moles of Cu2Se are completely reduced by an excess of hydrogen gas?
4 answers
asked by
Tayler
2,548 views
The titration of 10ml sample of vinegar requires 30ml of 0.20M of NaOH solution. Find molarity and mass percent concentration of
4 answers
asked by
Derrick
727 views
The products of the reaction between zinc and sulfruric acid are zinc sulfate, hydrogen sulfide, and water. Balance the equation
4 answers
asked by
Daniela
902 views
A buffer is prepared by adding 300.0mL of 2.0M NaOH to 500.0mL of 2.0M CH3COOH. What is the pH of this buffer? ka=1.8x10-5
5 answers
asked by
tina
5,439 views
Phenolphthalein would not be an appropriate indicator to use to determine the Ka1 of phosphoric acid Why not? what indicator
5 answers
asked by
ERAGON
3,021 views
Describe the preparation of 250cm3 of 0.05M of H2SO4 solution given the following stock solution specification; % purity= 98,
4 answers
asked by
Anonymous
746 views
Calculate the number of moles of calcium chloride Cacl2 that can be obtained from 25g of limestone CaCo3 in the presence of
22 answers
asked by
Anonymous
7,909 views
NaI(aq)+Hg2(C2H3O2)2(aq)-->
Express your answer as a chemical equation. Enter NOREACTION if no reaction occurs. Identify all of
5 answers
asked by
Lalo
19,306 views
Pages
1
2
3
4
5
6
7
8
9
10
Parent Categories (62)
Academic Subjects
Advanced Placement (AP)
Arts and Sciences
Biology
Career
Earth Science
Education
Educational Resources
Experiments
General science
High School
History and Science
Homework Help
Industries
Majors
Math
Math and Science
Math/Science
Mathematics
Mathematics & Science
Mathematics and Science
Movies
Natural Sciences
Online Discussion
Physical Science
Physical Sciences
Physics
Science
Science & Environment
Science & Medicine
Science & Nature
Science and Biology
Science and Education
Science and Engineering
Science and Environment
Science and Experimentation
Science and Experiments
Science and Geography
Science and Health
Science and Math
Science and Mathematics
Science and Medicine
Science and Nature
Science and Research
Science and Technology
Science Education
Science Experiment
Science Experiments
Science Safety
Science/Educational
Science/Math
Science/Mathematics
Science/Molecular Biology
Science/Physics
Science/Technology
Sciences
Scientific Experiment
STEM (Science, Technology, Engineering, and Mathematics)
STEM (Science, Technology, Engineering, Mathematics)
Subjects
Test Preparation
Word Problems