Physics, 29.01.2020 01:05 innocentman69

2. a solution that contains a small amount of salt and a large amount of water is said to be a solution.
a. concentrated
b. saturated
c. monounsaturated
d. dilute
student b
incorrect
reference:

6. all of the following are assumptions presented by dalton's atomic theory except that
a. atoms don't break into pieces even during chemical reactions.
b. atoms combine with other atoms.
c. all atoms of different elements are alike in size, shape, and weight.
d. all matter consists of atoms.
student b
incorrect
reference:

9. which of the following is true in regard to ions?
a. an ionized atom has a number of protons that is unequal to the number of electrons.
b. ions can only carry positive charges.
c. a cation will hold a positive charge if it gains one or more electrons.
d. losing one or more electrons will turn an atom into an anion.
student c
incorrect
reference:

11. which of the following medicinals are utilized to reduce pain?
a. tranquilizers
b. sulfonamides
c. analgesics
d. insulin injectables
student a
incorrect
reference:

14. when given a compound, adding up all of the of all of the individual atoms within one molecule of a compound will determine the molecular mass.
a. atomic numbers
b. atomic masses
c. electrons
d. protons
student d
incorrect
reference:

15. with regard to the ph scale, a solution with a ph
a. higher than 7 is considered an acid.
b. lower than 7 is considered basic.
c. of 6 is considered neutral.
d. close to 14 is considered a strong base.
student b
incorrect
reference:

19. which of the following classifications of matter includes materials that can no longer be identified by their individual properties?
a. element
b. compound
c. mixture
d. atom
student d
incorrect
reference:

20. the valence of an element or radical is
a. equal to the number of positive or negative charges on the ion.
b. greater than the number of positive or negative charges on the ion.
c. less than the number of positive or negative charges on the ion.
d. not related to the number of positive or negative charges on the ion.
student b
incorrect
reference:

Answers: 2

Show answers

Answers

2. A dilute solution means that the amount of solvent (water, for this particular case) is significantly larger than the solute (salt). Thus, the answer is D. 6. John Dalton's atomic theory states that matter is made up of tiny indestructible objects called matter. The theory also indicates that although same elements have the same atoms, each element have unique set atoms that deinfe them. From this, we can conclude that the wrong assumption is C. 9. Atoms, by default, are electrically neutral. When an atom loses or gains electron/s, then they become ionized atoms or commonly called as ions. Thus, ionized atoms imply unequal number of protons and electrons. This means the answer must be A. 11. Analgesics are commonly used to relieve pain. Thus, the answer is C. 14. Adding up the atomic mass of the individual atoms will give you the molar mass of a compound. Therefore, the answer is B.: 15. The pH scale provides us the alkalinity or acidity of a solution based on the value. A value between 0 to 6 indicates that the solution is acidic. 7 is considered neutral and a value between 7 and 14 indicates that the solution is basic. Thus, the answer is D. 19. An element has consistent properties and can no longer be further identified into having individual properties. Thus, the answer is A. 20. The valence of an element dependeds on the number of electrons on the outermost shell. Thus, it is equal to the number of charge negative or positive charges on the ion. Hence, we have A. :

Answer from: Quest

sleep paralysis is a parasomnia, events associated with sleep.

sleep paralysis happens when you are in the middle of waking up or falling asleep. it is the feeling of being conscious but unable to move. it definitely involves hallucinations.

i had a friend that had sleep paralysis and he told me a story one time where he was laying in bed and he couldn't move his body no matter how hard he tried and there was someone standing in the corner of his room coming towards him. he couldn't move and you can't "wake up" because you are already conscious. sometimes sleep paralysis can be triggered by frequent waking up during the night based off of multiple trips to the bathroom, or if you had ever been abused, sleep paralysis can start happening from things like that.

Answer from: Quest

talk back to him about the sport and show him your expertise or leave the room

Another question on Physics

Physics, 22.06.2019 10:30

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?

Answers: 2

Answer

Physics, 22.06.2019 12:30

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j

Answers: 3

Answer

Physics, 22.06.2019 22:00

Ahurricane sweeps across the ocean and damages the houses of people living along the coast. which of these does not play any role in this interaction? air water glaciers living things

Answers: 1

Answer

Physics, 23.06.2019 03:10

You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.

Answers: 2

Answer

You know the right answer?

2. a solution that contains a small amount of salt and a large amount of water is said to be a solu...

Questions