Computers and Technology
Advanced Placement (AP)
Questions and task on the subject: Chemistry
Chemistry, 07.10.2022 07:40
what is the molarity of a 10.4 %% by mass glucose (c6h12o6)(c6h12o6) solution? (the density of the solution is 1.03 g/mlg/ml .)...
Chemistry, 06.10.2022 14:00
in a solution of high ph, all of the acidic and basic sites in an amino acid are group of answer choices protonated deprotonated negatively charged more than one correct response n...
Chemistry, 28.09.2022 03:10
Identify which of the following statements are TRUE. The composition of a pure substance is variable. The density of a pure substance is fixed. The properties of mixt...
Chemistry, 25.09.2022 02:10
Why are the atomic masses of isotopes different?...
Chemistry, 22.09.2022 14:00
If the distance between 2 objects increased, what would happen to the force of gravity between them....
Chemistry, 17.09.2022 20:10
Particles, or atoms, in a high-pressure gas are exerting container. O minimal thermal constant large forces on the *...
Chemistry, 14.09.2022 01:10
Cobalt has 27 electrons-27 protons and Iron has 26 electrons-26 protons. Which answer is correct? A) Iron and Cobalt atoms attract since they don't have the same numb...
Chemistry, 09.09.2022 14:00
Distinguish between the terms solute, solvent and solution?...
Chemistry, 05.09.2022 14:00
If 0.896 g of a gas occupies a 250 mL flask at 20°C and 760 mm Hg of pressure, what is the molar mass of the gas?...
Chemistry, 01.09.2022 18:20
The reaction below is at equilibrium. What would happen if more carbon were added? C(s) + O₂(g) CO₂(g)...
Chemistry, 31.08.2022 03:00
The following balanced equation represents what type of reaction? 2 H2O → 2 H2 + O2 Select one: a. double displacement b. single displac...
Chemistry, 19.08.2022 04:30
6. a) Define the term pH...
Chemistry, 12.08.2022 14:00
You are given 100 g of a compound. The compound is composed of 37% hydrogen and 63% oxygen. How many grams oxygen are present in the 100 g sample? Select one: a. 37 g b. 100 g c. 2...
Chemistry, 11.08.2022 06:10
Calculate the number of atoms in 3 mol helium...
Chemistry, 11.08.2022 04:40
Write a careful description of a metal or an alloy . Use the correct scientific terms. Explain which properties of metals are particularly suited to the function it has. a) The n...