elliyca77 elliyca77

03-01-2023
Chemistry

Answered

17. Excess magnesium powder was added to a beaker containing hydrochloric acid, HCl(aq).
The mass of the beaker and its contents was recorded and plotted against time (line 1).
Mass
Which change could give line II?
A Doubling the mass of powdered Mg
BUsing the same mass of Mg ribbon
CIncreasing the temperature
D. Using the same volume of more concentrated HCI

Answer :

Other Questions

In another experiment, a small piece of Mg(s) is weighed, then placed in a flask containing excess 1 M HCl(aq). The student wants to determine number of moles o

Using the following equation and your results from the previous question, calculate the enthalpy of combustion of 1 mole of ethanol (show your workings and the

What is the mass of 3.9 moles of neon? The molar mass of Ne is 20.18 g/mol.

2.00 × 102 mL of 0.862 M HCl is mixed with 2.00 × 102 mL of 0.431 M Ba(OH), in a constant-pressure calorimeter of negligible heat capacity. The initial temperat

The following elements belong in the same family: JFU, RHIG, QKZ, COL, WAP, TMB, SNV, XDYE 1. I and D represent an entire period 2. R has one electron in its ou

247/96Cm → 4/2 He What is the atomic mass of the new atom? What is the atomic number of the new atom? What is the symbol of the new atom? What type of decay is

251/98 Cf → 0/0 Y What is the atomic mass of the new atom? What is the atomic number of the new atom? What is the symbol of the new atom? What type of decay is

3. What atom has five shells and seven valence electrons 4. The most active metal in period 2 5. Which atom of period 4 is the most active nonmetal 6. Element w

3. What atom has five shells and seven valence electrons 4. The most active metal in period 2 5. Which atom of period 4 is the most active nonmetal 6. Element w

A known mass of hydrated magnesium sulfate, MgSO4 .xH2 O, was dissolved in water. Excess aqueous barium chloride was added. The precipitate of barium sulfate wa