Find the answers to the Blanks in each box and give an explanation, use the formulas shown to answer this.

Answer:

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass of metal = 10.5 g

volume = 13 cm³

We have

[tex]density = \frac{10.5}{13} \\ = 0.8076923...[/tex]

We have the final answer as

Hope this helps you

Answer:

0.807

Explanation:

mass/volume = density

10.5/13 = 0.807

Explanation:

mass = desity × volume

volume = mass/density...

i believe thats right...

btw u means Physics formulae only..lol

Answer:

Water - H2O

Ammonia - NH3

Sulfur dioxide - SO2

Hydrogen sulfide - H2S

Ethanol - C2H6O

Explanation:

Those are some atoms with polar covalent bonds. Hope this helps!!

Neon is transparent opaque as it is light, colorless and order less inert noble gas.

Noble gas are defined as the element that belong to group 18 of the modern periodic table.

It is also known as inert gas or aerogene.

Noble gas are light, transparent, colorless and order less gases.

They are the group of six inert or non reactive gases.

Noble gases are odorless, colorless, nonflammable gases with negligible chemical reactivity.

Noble gases are exceedingly stable and unlikely to form chemical bonds due to their complete valence electron shells, which have no tendency to add or lose electrons.

Noble gas were originally classified as group 0 in the periodic table because it was thought they had a valence of zero, which means their atoms could not mix with those of other elements to form compounds.

Thus, Neon is transparent opaque as it is light, colorless and order less inert noble gas.

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Answer:

A

Explanation:

Option B, Excretory System

Explanation:

Anytime matter is in motion it has kinetic energy. The faster an object moves, the more kinetic energy it has. The more mass an object has, the more kinetic energy it has.

Both the kinetic energy and potential energy are directly proportional to the mass of the object. Hence, increasing the mass will increase the kinetic and potential energy of the pendulum.

The kinetic energy of an object is generated by virtue of its motion. Whereas, the potential energy is generated by virtue of its position. hen the object is at rest, the energy is stored in it in the form of potential energy. When the object starts moving, its potential energy starts to converts to kinetic energy.

The kinetic energy of an object is related to its mass and velocity by the equation:

Ke = 1/2 mv²

Potential energy  P = mgh

where, g is the acceleration due to gravity and h is the height of the object from the surface.

Hence, both potential energy and kinetic energy are directly proportional to the mass of the object. An increase in mass increase both form of energy of the object.

Therefore, the kinetic and potential energy of the pendulum increases with mass.

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Answer:

[Rn]7s25f14

Explanation:

[tex][Rn]5f^{14}7s^2[/tex] is the electron configuration for nobelium (No).

Explanation:

Given:

The element nobelium.

To find:

The electronic configuration of nobelium

Solution:

The atomic number of nobelium is 102.

The number of protons = Atomic number = 102

The number of electrons = Number of protons = 102

There are 102 electrons in atom nobelium and they will be filled according to the Aufbau rule that the electron will be filled in a subshell with lower orbital energy.

The electronic configuration of nobelium :

[tex][No]=1s^22s^22p^63s^23p^63d^{10}4s^24p^64d^{10}5s^25p^64f^{14}5d^{10}6s^26p^65f^{14}7s^2[/tex]

Or we can also write the above electronic configuration as:

[tex][No]=[Rn]5f^{14}7s^2[/tex]

[tex][Rn]5f^{14}7s^2[/tex] is the electron configuration for nobelium (No).

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Answer: When a combination reaction occurs between a metal and a non-metal the product is an ionic solid.

Explanation: Another hint(s): When magnesium burns in air, the atoms of the metal combine with the gas oxygen to produce magnesium oxide. This specific combination reaction produces the bright flame generated by flares.

Answer:

If you pour a spoonful of salt into a glass of water, the sodium will react with the water and increase the mass.  

Explanation:

Answer:

6 atoms since it says (6o2 and 6co2) notice how there's a 6 before the o2 and co2 ? (oxygen and carbon dioxide ?)

Answer:

plasma

Explanation:

Plasma, in physics, an electrically conducting medium in which there are roughly equal numbers of positively and negatively charged particles, produced when the atoms in a gas become ionized. It is sometimes referred to as the fourth state of matter, distinct from the solid, liquid, and gaseous states.

Answer:

a. up

b. down

c. up

d. up

Explanation:

Answer:

You don't

Explanation:

Unless you ask your sister to

Ship her away (DO NOT ACTULLY DO THAT)

simply just ask her to leave you alone

Answer:

Atomic # is 9

protons 9

neutrons: 10

electrons: 9

mass :18.n u

energy shells: 18

Answer:

FALSE

Explanation:

Answer:

See explanation.

Explanation:

A. 2s is incorrect, the right arrow should be pointing downwards.

B. In 2p, the last box has 3 arrows. This is invalid. Each box can only store 2 arrows(electrons).  The last arrow should be moved to a 3p orbital (new box).

C. In this one, the arrows switched directions (left is down and right is up). You could fix each box or just the last one (in 3p) to point downwards.

Answer:

0.03262841

I tried, hope this helps :)

Answer:

0.032 lbs

Explanation:

Divide the mass value by 454.

Answer:

0.690666... g/cm^3

Explanation:

density=mass/volume. mass is 2.331 g and using the length we can determine that the volume of the cube is 3.375 cm^3. 2.331/3.375= 0.6906666....

Answer: the volume increases

Explanation: It increasses because the volume is how tall it is

The crystals of igneous rock are formed due to different chemical composition, size and structure of the rocks

The crystals of an igneous rock are used to classify its own because the crystals of igneous rock are formed due to different chemical composition as well as size and structure. Igneous rocks are the type of rocks which are formed when magma cools and change into solid state.

They are classified on the basis of grain size, silica content, and silica saturation. The igneous rock is depend on the rate of cooling i.e. slow cooling causes the formation of large crystals whereas fast cooling produces small crystals. The igneous rocks are classified according to their chemical composition.

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i think it would be neutral

Answer:

7.11 x [tex]10^{14}[/tex] Hz

Explanation:

The equation for converting wavelength to frequency is ν=c/λ, or the speed of light over wavelength. The speed of light is 3.00 x [tex]10^{8}[/tex], and our wavelength here is 422 x [tex]10^{-9}[/tex]. All we have to do now is substitute our given values:

[tex]\frac{3.00x10^{8} }{422x10^{-9}}[/tex]

After reduction, our answer comes out to be about 7.11 x [tex]10^{14}[/tex] Hz.

Answer:

Units of force.

Explanation:

Issac Newton created the laws of motion and discovered gravity.

Answer:

x100.

Explanation:

Na2CO3 (aq) + CaCl2(aq) → CaCO3 (s) + 2 NaCl (aq)

For example, if we use 2.00 g CaCl2 x 1 mole = 0.0180 mole CaCl2

111 g CaCl2

and mix it with 2.00 g Na2CO3 x 1 mole = 0.0189 mole Na2CO3

106 g.

AB + CD → CB + AD, where A and C are cations and B and

D are anions

Answer:

x100 this is the answer I didn't do explanation sorry for that

Answer:

replace its predecessor, the 30-pin dock connector, the Lightning connector is used to connect Apple mobile devices like iPhones, iPads, and iPods to host computers, external monitors, cameras, USB battery chargers, and other peripherals.

Answer:

C

Explanation:

Thermal energy from the fire move to the water in the form of heat.

Answer:

correct option C

Explanation:

Answer:

According to the kinetic molecular theory, which statement describes the particles in a sample of an ideal gas? The motion of the gas particles is random and in a straight-line.

Explanation: