Get homework help and achieve better grades, guaranteed!

No matter what kind of academic paper you need, it is simple and secure to hire a tutor for a price you can afford at TutorsOnSpot. Save more time for yourself.

Post a Homework Question Try us for Free!

Questions posted in Chemistry

Mg(OH)2 + 2HCl → MgCl2 + 2H2O How many grams of MgCl, will be produced from 12.0 g of Mg(OH), and 42.0 g of HCI?

Chemistry 06/04/2020 07:00 AM answersmine

Please Login To View The Answer

Some substances are made of only one kind of atom. Other substances are made of more than one kind of atom. How are the properties of these two substances different

Chemistry 06/04/2020 05:36 AM answersmine

Please Login To View The Answer

Which of the following representsthe solution(s) for the inequality15x + 90 > 270?

Chemistry 06/04/2020 04:42 AM answersmine

Please Login To View The Answer

Online Tutors To Help You

If 19.2 g of O2 reacts with iron to form 63.84 g of iron oxide, how much iron in grams was used in the reaction?

Chemistry 06/04/2020 02:43 AM answersmine

Please Login To View The Answer

Can someone explain to me how this is correct? I have been getting different answers. I have been getting ≈30.31.

Chemistry 06/04/2020 01:39 AM answersmine

Please Login To View The Answer

1. Calculate the energy in calories when 45.2 g ofsteam at 100.0°C condenses to liquid water at the sametemperature. What is this energy in joules?

Chemistry 06/04/2020 01:05 AM answersmine

Please Login To View The Answer

Online Tutors To Help You

What type of weathering involves pollutants reacting with water vapor?

Chemistry 05/04/2020 11:18 PM answersmine

Please Login To View The Answer

Anyone would be able to help me out with this?

Chemistry 05/04/2020 10:50 PM answersmine

Please Login To View The Answer

What is the concentration of a solution in which 75 g of C12H22O11are dissolved in 600. mL of water?

Chemistry 05/04/2020 11:26 AM answersmine

Please Login To View The Answer

Online Tutors To Help You

A sample of oxygen gas occupies a volume of 229.5 mL at 762.7 torr pressure. What volume in mL will it occupy at 704.5 torr pressure?

Chemistry 05/04/2020 06:12 AM answersmine

Please Login To View The Answer

When equal volumes of equimolar solutions are combined, the concentration of each solution..?a. decreases by one fourthb. increases by one halfc. decreases by one half

Chemistry 05/04/2020 05:03 AM answersmine

Please Login To View The Answer

An equivalent (Eq) is defined as a mole of charge. If human blood plasma has a concentration of 150 mEq (milli-equivalent) and assuming that all of the solute is Na+, what mass of Na+ is present in 1.00 L of blood plasma? The mass of Na+ is 23.0 g/mol. Give your answer to three significant figures.

Chemistry 05/04/2020 04:34 AM answersmine

Please Login To View The Answer

Online Tutors To Help You

Carbon dioxide is a trace gas in earths atmosphere. Although only a small percentage of the atmosphere consists of carbon dioxide, this gas plays an important role in earths atmosphere. Which of the following describes the role of carbon dioxide? A- carbon dioxide influences the mass of the atmosphere B- carbon dioxide influences the height of the atmosphere C- carbon dioxide influences the heating of the atmosphere D- carbon dioxide influences the density of the atmosphere

Chemistry 05/04/2020 03:49 AM answersmine

Please Login To View The Answer

Nonrenewable resources exist in a fixed amount and can only be replaced by processes that take millions of years agree or disagree explain why

Chemistry 05/04/2020 01:39 AM answersmine

Please Login To View The Answer

KNO3(aq) + NaCl(aq) produces what solid product

Chemistry 05/04/2020 01:26 AM answersmine

Please Login To View The Answer

Online Tutors To Help You

why are weather forecast more accurate today than in the past ?

Chemistry 04/04/2020 08:27 PM little_bean

Please Login To View The Answer

What is the H+ concentration of a 0.05 M solution of HF if it has a Ka of 7.2 x 10^-4

Chemistry 04/04/2020 07:29 AM answersmine

Please Login To View The Answer

A sample of chlorine gas occupies a volume of 775 mL at a pressure of 545 mmHg. Calculate the pressure of the gas (in mmHg) if the volume is reduced at constant temperature to 171 mL. Enter your answer in scientific notation.

Chemistry 04/04/2020 06:02 AM answersmine

Please Login To View The Answer

Online Tutors To Help You

Nitric acid is often manufactured from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming of natural gas, in a two-step process. In the first step, nitrogen and hydrogen react to form ammonia: (g)(g)(g) In the second step, ammonia and oxygen react to form nitric acid and water: (g)(g)(g)(g) Write the net chemical equation for the production of nitric acid from nitrogen, hydrogen and oxygen. Be sure your equation is balanced.

Chemistry 04/04/2020 05:55 AM answersmine

Please Login To View The Answer

A solution of cyclohexanone (4.0mg/mL) in the solvent selected in part b exhibits a blank-corrected absorbance of 0.800 in a cell with a path length of 0.025 mm. What is the detection limit for this compound under these conditions if the noise associated with the spectrum of the solvent is 0.001 absorbance units?

Chemistry 04/04/2020 05:35 AM answersmine

Please Login To View The Answer

Calculate the pH of 1.00 L of the buffer 0.99 M CH3COONa/0.98 M CH3COOH before and after the addition of the following species. (Assume there is no change in volume.) (a) pH of starting buffer: (b) pH after addition of 0.060 mol NaOH:

Chemistry 04/04/2020 02:46 AM answersmine

Please Login To View The Answer

Online Tutors To Help You

How many moles of magnesium chloride are produced when 3 moles of HCI react with magnesium?*

Chemistry 04/04/2020 02:19 AM answersmine

Please Login To View The Answer

An electrolytic cell requires electrical energy from an external source to drive a non-spontaneous redox reaction. The external source (a power supply such as a battery) will force the electrons to go towards the negative electrode (in this case the cathode). Reduction still happens at the cathode and oxidation at the anode. The electron flow and the signs of the electrodes are reversed in an electrolytic cell. The anode is the positive electrode and the cathode the negative electrode in all electrolytic cells. Electrons travel through the wire from anode (+) to cathode (-). Consider the following general electrolytic cell: a. At which electrode does oxidation occur? b. At which electrode does reduction occur? c . At which electrode does elemental metal form? d. At which electrode are electrons being released by ions (in other words: where are electrons generated)? e. At which electrode are electrons entering the cell (in other words where are electrons going)?

Chemistry 04/04/2020 02:19 AM answersmine

Please Login To View The Answer

Select all that apply to physical and chemical properties.

Chemistry 04/04/2020 01:37 AM answersmine

Please Login To View The Answer

Online Tutors To Help You

"how many liters of a 0.2 m naoh solution are needed in order to have 0.4 moles of naoh?"

Chemistry 04/04/2020 01:32 AM answersmine

Please Login To View The Answer

The reactant concentration in a zero-order reaction was 5.00×10−2 M after 195 s and 2.50×10−2 M after 385 s . What is the rate constant for this reaction? Express your answer with the appropriate units. Indicate the multiplication of units, as necessary, explicitly either with a multiplication dot or a dash.

Chemistry 04/04/2020 01:25 AM answersmine

Please Login To View The Answer

What is the reaction called that causes lead to be leached in water? What are the reactants and products in this reaction?

Chemistry 04/04/2020 12:24 AM answersmine

Please Login To View The Answer

Online Tutors To Help You

Cryolite, Na 3 AlF 6 ( s ) , an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation for the synthesis of cryolite. equation: Al2O3 (s) + NaOH (l) + HF (g) -> Na3AlF6 + H2O (g) Al 2 O 3 ( s ) + NaOH ( l ) + HF ( g ) ⟶ Na 3 AlF 6 + H 2 O ( g ) If 10.0 kg of Al 2 O 3 ( s ) , 58.4 kg of NaOH ( l ) , and 58.4 kg of HF ( g ) react completely, how many kilograms of cryolite will be produced?

Chemistry 03/04/2020 11:31 PM answersmine

Please Login To View The Answer

What is a precipitate

Chemistry 03/04/2020 10:46 PM answersmine

Please Login To View The Answer

In Hungry Horse, Montana, the Hungry Horse Dam blocks water flowing from the Columbia River. What is the best name for the water resource that is created by the Hungry Horse Dam? A. Hungry Horse Lake B. Hungry Horse Reservoir C. Hungry Horse River D. Hungry Horse Pond

Chemistry 03/04/2020 09:30 PM answersmine

Please Login To View The Answer

Previous Next

Online Tutors

Best Tutor in Town

Online Tutors

Best Tutor in Town

Online Tutors

Best Tutor in Town

Online Tutors

Best Tutor in Town

Online Tutors

Best Tutor in Town

Online Tutors

Best Tutor in Town

Online Tutors

Best Tutor in Town

Online Tutors

Best Tutor in Town

Online Tutors

Best Tutor in Town