CHEMISTRY HIGH SCHOOL

Based upon the pH scale, a vegetable with a pH of 5.3 would be

Answers

Answer 1
Answer: It would not be a base, a base on the pH scale is from 8-14, an acid is from 1-6. There for it would be an acid.
Answer 2
Answer: A vegetable with a pH of 5.3 would be base, not acid. One exemple is celery 

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Question 32(multiple choice worth 1 points) [01.04]what do scientists use to measure the mass of a substance? balance graduated cylinder measuring cup scale

Answers

has to be balance since the others are for volume

2Mg + O2 --> 2MgO Magnesium is the oxidizing agent and is reduced oxidizing agent and is oxidized reducing agent and is reduced reducing agent and is oxidized

Answers

Answer:

oxidizing agent and is reduced

Explanation:

The oxidation number of Mg changes from 0 to +2. So, magnesium is reduced and is the oxidizing agent.

Arrange the isotopes of sulfur and phosphorus in order of decreasing number of neutrons.Rank the isotopes from most to fewest neutrons. To rank items as equivalent, overlap them.

S-36
P-35
S-32
P-33
P-32
P-31

Answers

Neutrons=mass number-atomic number
most          S-36 and P-35(both have 20 neutrons) (36-16=20)(35-15=20)
                 P-33 (33-15=18neutrons)
                 P-32 (32-15=17 neutrons)
least          S-32 and P-31 (both have 16 neutrons) (32-16=16)(31-15=16)

The electron configuration 1sÆ 2sÆ2pÒ 3sÆ3pÒ represents which noble gas?

Answers

This noble gas is argon (Ar), because its third energy level is full.

Which of the following is the correct electron configuration for titanium (Ti)?

Answers

I am not sure if there is a certain form that you are looking for but heres one:


1s^2 2s^2 2p^6 3s^2 3p^6 3d^2 4s^2
The correct electron configuration for titanium is (Ar) 3d2 4s2

Which process takes place when recharging a rechargeable battery?

Answers

Answer:

The correct answer is "Oxidation at the anode and reduction at the cathode".

Explanation:

A rechargeable battery is recharged by the movement of electrons from an external power source into the battery. In order to achieve this, two process take place inside the rechargeable battery: oxidation at the anode and reduction at the cathode. The electrons flow within the battery from the anode to the cathode, this happens by the oxidation of the anode (loss of electrons) and the reduction at the cathode (gain of electrons).
moving of positive charge electron and negative charge proton.
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