CHEMISTRY MIDDLE SCHOOL

Which qualities describe the mass and charge of an electron?A.
mass equal to that of a proton; positive charge
B.
mass equal to that of a proton; negative charge
C.
mass 1/1836 that of a proton; positive charge
D.
mass 1/1836 that of a proton; negative charge

Answers

Answer 1
Answer:

B.

mass equal to that of a proton; negative charge

Related Questions

Lewis dot structures explicitly show which of the following about a molecule?The total electron configuration of each atom in the moleculeThe three-dimensional geometry of the atoms in the moleculeThe ionic charge on each atom within the moleculeThe way atoms share electrons to be connected to one another within the molecule
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Why are ionic compounds electrically neutral
The jelly-like substance that fills the cell is called
Heterogeneous materials are always mixtures. Are homogeneous materials always pure substances? Explain.

Match the numbers and alphabets.1. Inertia                                                                       a. amount of matter in an object
2. mass                                                             b. sum of all forces acting on an object
3. force                                                           c. tendency to resist a change in motion
4. unbalanced forces                                                                               d. push or pull
5. balanced forces                                                      e. can change an objects motion
6. net force                                                             f. will not change an object's motion

Thank you!

Answers

1 C
2 A
3 D
4 F
5 E
6 B

These are the answers

_____________ can be described as the ‘skin’ on the surface of a liquid due to its cohesive forces.

Answers

Answer:

surface tension

Explanation:
Surface tension




Explanation- Surface tension could be defined as the property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of the water molecules.

Please helpRadiocontrast dyes are considered safe because the isotopes have short half-lives and the isotopes coat the gastrointestinal tract and are not absorbed by normal tissue. If a patient ingests 10.0 mg of iodine, how long until the iodine-134 is 99% out of the patient's system if the half-life of iodine-134 is 52.6 minutes?

Answers

In 52.6 mins the 10 mg of iodine will be divided by its half-life which is 2 it will become 5 mg  (in 52.6 minutes ) and same procedure will be followed until it reach 99% out of the patient's system.

The answer is 368 minutes will it takes the iodine to be absorbed in one's system.

Your shopping cart has a mass of 65 kilograms. In order to accelerate the shopping cart down an aisle at 0.3 m/sec2, what force would you need to use or apply to the cart?

Answers

Assuming there is no friction between the floor and the shopping cart we can solve for the force by using F=m*a. With this F=65*(.3) which gives is the force to be 19.5N

What type of rain contains more acid than normal rain?

Answers

Acid Rain contains more acid than normal rain. It can cause damage to trees, and even buildings. It is caused by factory pollution.

What chemical test can be carried out to show that a liquid collected from the sea is water? (color change if the liquid is water)

Answers

Answer:

Explanation:

The chemical test for water includes the cobalt chloride paper test. If water is present it will change from blue to pink colour. Another test is the copper sulphate test. pure form of copper sulphate is white in colour.

Copper (II) sulphate is used to test for water. We use white anhydrous copper (II) sulphate, which contains no water. If water is present, the copper (II) sulphate turns blue. A positive test for the presence of water will mean the copper (II) sulphate turns blue.
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