Why do more gas bubbles mean the gold is less pure

Answer:

no.

Explanation:

you're prolly wondering why cuz this is revenge for your little game you did to me and whoops! i don't know the answer :) !

Answer:

D. What is the effect of a boat’s shape on its speed?

Explanation:

Kinetic energy can be defined as the energy possessed by an object or body due to its motion. It is the amount of work required to accelerate an object or body with a specific mass from its point of initial rest to a final velocity.

Mathematically, kinetic energy (K.E) is equal to 1/2(mv²).

Hence, the question which would involve the investigation of kinetic energy is "what is the effect of a boat’s shape on its speed?" because speed is directly related to the motion of the boat. Generally, the shape of the hull of a boat has an effect on the speed of the boat.

Answer:

What is the effect of a boat’s shape on its speed?

Answer:A

Explanation: because it represents a salt which is a nonmetal

Answer:

Matter can be classified according to

physical and chemical properties. Matter is anything that occupies space and has mass. The three states of matter are solid, liquid, and gas. ... Pure substances can be either chemical compounds or elements.

Answer:

D - He was the first person to use the term Cells.

Explanation:

Hooke invented the first compound light microscope (not first microscope) and he examined a cork and saw that it was made up of thousands of empty pockets which he later called 'Cells'.

Hope it Helps! :D

Answer:

A both

Explanation:

hope this helped

Answer:

I hope this helps

Explanation:

Lewis symbols, which are also known as Lewis dot diagrams or electron dot diagrams, are diagrams that represent the valence electrons of an atom. Lewis structures, also known as Lewis dot structures or electron dot structures, are diagrams that represent the valence electrons of atoms within a molecule.

Answer:

Find It Myself, Ask the Community, Get Live Help

Explanation:

The three main options for Microsoft users are Find It Myself, Ask the Community, Get Live Help. The first of which is finding it yourself through the search menu or help guidelines provided by Microsoft in all of their operating systems. Secondly, would be asking the community through search engines such as Google or through Microsoft help forums. Lastly, would be getting live help since Microsoft opertaing systems have a remote desktop feature that allows you to connect to another IT professional from a distance, or you can simply contact an IT professional to visit you in person for technical assistance.

Answer:

Tectonic plates can crash into each other, and soil and dirt will shoot up, creating mountains and volcanos. This is how the Himalayas are actually said to form, when India crashed into Eurasia.

Hope this helps!

Answer:

The correct answer is C.

Explanation:

To solve this problem, we should first recall possible units for mass and volume.  Mass can be represented with units of grams, kilograms, etc.  Volume has units of cubic meters, cubic centimeters, etc.

Therefore, since we know that density is mass divided by volume, the only answer that makes sense here is C. grams per cubic centimeter (where per signifies that grams are being divided by cubic centimeters).

Hope this helps!

Answer:

a dentist

Explanation:

Answer:

B. A net positive charge

Explanation:

a p e x 2021!

Answer:

False

Explanation:

Clouds are formed when air contains as much water vapor (gas) as it can hold. This is called the saturation point, and it can be reached in two ways. First, moisture accumulates until it reaches the maximum amount the volume of air can hold. The other method reduces the temperature of the moisture filled air, which in turn lowers the amount of moisture it can contain. Saturation, therefore, is reached through evaporation and condensation, respectively. When saturation occurs, moisture becomes visible water droplets in the form of fog and clouds.

Answer:

Nitrogen

Explanation:

Answer:

Explanation:

For  

32

S

2

−

, there are 16 protons, 18 electrons, and 16 neutrons.

Explanation:

The atomic number,  

Z

, specifies the number of protons, positively charged, massive, fundamental particles present in the sulfur nucleus. This number defines the sulfur atom as a sulfur atom (i.e if there were 17 protons, the atom would be chlorine).

For a neutral atom, if there are 16 positive nuclear charges, there must necessarily be 16 negatively charged particles, 16 electrons, whizzing about the nucleus.

Because electrons have negligible mass, to account for the mass of the isotope, there must be 16 neutrons, 16 neutrally charged, massive, fundamental particles present in the sulfur nucleus.

And thus finally, if we have the  

32

S

2

−

ion, there are 18 electrons, 16 protons, and 16 neutrons.

An atom can be defined by its properties:  

An isotope is represented by the general notation of [tex]_Z^A\textrm{X}[/tex], where X is the symbol of an element.

For the given isotopic specie, [tex]_{16}^{34}\textrm{S}^{-2}[/tex], mass number is 34 and atomic number is 16.

Number of neutrons = Mass number - Atomic number

Put the value in the above formula.

[tex]\Rightarrow \text{Number of neutrons}=34-16\\\\\Rightarrow \text{Number of neutrons}=18[/tex]

So, the correct option is (G).

Learn more about neutrons in an atom here: https://brainly.com/question/19958244

Answer:

ca +n2 is impossible to get trough a ca3 +n2 so you have to try to find a reasnable question like ca+n2 = ca3n2 then you need witch is the same but the chimacl blanice is off so when mixing the chimcals try to reduce the can2

but also try to make it be a better salution

Explanation:

hope that helps also good luck

Answer:

igneous rocks

Explanation:

igneus rocks are sometimes considered primary rocks because they crystallize from a liquid

Answer: 50 kg

Explanation: formula is

m= p/v

m=800 kg m/s : 16m/s

m= 50kg

idk tho hope this helps

I think its B cause...

When an atom loses an electron, it becomes a cation (positive ion). When an atom gains an electron, it becomes an anion. Ions are created when an atom loses or gains an electron. Atoms can never lose or gain protons, as this would change the fundamental identity of the atom.

if I'm wrong...please don't attack me

The cations are formed when an atom loses electrons.  

• The positive ions produced by the loss of one or more electrons are known as the cations.  

• The most commonly formed cations take place in the case of the elements, which involve the loss of all the valence electrons.  

• The resulting cation exhibits the electronic configuration of the noble gas atom.  

• The negative ions produced from the gain of one or more electrons are known as the anions.  

Thus, the correct answer is option b, that is, the cations form when an atom loses electrons.

To know more about:

https://brainly.com/question/19026624

Answer:

Volume of the [tex]CO_{2}[/tex] gas at 44°C is 258 ml.

Explanation

here,

using Charles' law ,

[tex]\frac{V}{T} =\frac{v}{t}[/tex]

where , V= initial volume          v= final volume

             T=initial temperature    t = final temperature

Given - pressure is constant ,

so , putting the values -

V= 240ml

T= 22 + 273K = 295K                      (since converting celsius into kelvin that

                                                         is +273K )

v =?

t = 44+ 273K = 317K

Now , putting the given values in charles' law ,

[tex]\frac{240ml}{295K} =\frac{v}{317K}[/tex]

240ml x317K = v x 295K     (through cross multiplication )

v =[tex]\frac{240ml\times317K}{295K}[/tex]

= 258ml .

thus , the volume of carbon dioxide in a container at 44°C IS 258ml .

Answer:A

Explanation:

To do the experiment

The experimental setup is the part of the scientific method that is done to prove the hypothesis. The test variable of the experiment is the height of the tray as it may cause an effect. Thus, option C is correct.

The independent variable has been the test variable that does not depends on other variables and is manipulated by the researcher. It has no fixed value and parameter and is subject to alteration so as to cause an effect on the other variable.

The height of the tray is the independent variable and the mass of the sand is the dependent variable. The height affects the mass of the sand eroded at the bottom. The speed and amount of water have been the controlled variable.

Therefore, option C. the height of the tray with the sand is the independent variable.

Learn more about independent variables, here:

https://brainly.com/question/1479694

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Answer:

A photon of green light has a higher energy since it has a higher frequency than the yellow photon. And we can see that on the picture representation of the light spectre.

Answer:

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question

density of metal = 5.78 g/mL

volume = final volume of water - initial volume of water

volume = 24.7 - 22.3 = 2.4 mL

We have

mass = 5.78 × 2.4 = 13.872

We have the final answer as

Hope this helps you

Answer:

Its 19.

Explanation:

K (potassium) has 19 electron according to the atomic number in the periodic table. The atomic number tells you the number of protons and electrons.