An atom of sodium can transfer its one valence electron to an atom of...
O magnesium to complete the octet rule
O fluorine to complete the octet rule
O nitrogen to complete the octet rule
O calcium to complete the octet rule

Answer:

continental plate boundaries

Explanation:

Answer:

N2

Explanation:

CO freezing point is -337 F

CO2 freezing point is -109 F

N2 freezing point is -346F

Answer:

B

Explanation:

Answer:

b

Explanation:

a p e x :)

Answer:

c

Explanation:

because chlorine and phosphorus

Answer:

one star

In our solar system, there is only one star that we know of – the sun! Our solar system is very unique in that is only has one star. Most other solar systems have at least two stars. These are called binary systems.

Explanation:

[tex]\huge\purple{Hi!}[/tex]

Some estimates peg the Milky Way's star mass as having 100 billion "solar masses," or 100 billion times the mass of the sun. Averaging out the types of stars within our galaxy, this would produce an answer of about 100 billion stars in the galaxy. This is subject to change, however, depending on how many stars are bigger and smaller than our own sun. Also, other estimates say the Milky Way could have 200 billion stars or more.

Answer: The half life of the sample is 60.26 years.

Explanation:

All radioactive decay reactions follow first order reaction.

The formula used to calculate the rate constant for a first order reaction follows:

[tex]k=\frac{2.303}{t}\log \frac{a}{(a-x)}[/tex]

where,

k = rate constant = ?

t = time period = 25 years

a = initial concentration of the reactant = 500 g

a - x = concentration of reactant left after time 't' = (500 - 125) = 375 g

Putting values in above equation, we get:

[tex]k=\frac{2.303}{25yrs}\log \frac{500g}{375g}\\\\k=0.0115yr^{-1}[/tex]

Now, to calculate the half life period of the reaction, we use the equation:

[tex]t_{1/2}=\frac{0.693}{k}[/tex]

where,

[tex]t_{1/2}[/tex] = half life period of the reaction = ?

k = rate constant = [tex]0.0115yr^{-1}[/tex]

Putting values in above equation, we get:

[tex]t_{1/2}=\frac{0.693}{0.0115yr^{-1}}\\\\t_{1/2}=60.26yrs[/tex]

Hence, the half life of the sample is 60.26 years.

Answer:

The most common method of fossilization is called permineralization, or petrification.

Answer:

Trace Fossil

Explanation:

typically formed when an organism moves over the surface of soft sediment and leaves an impression of its movement behind.

Answer:

yes it is a chemical change

Explanation:

because first it was in liquid and turned into gas

Answer:

It's a chemical reaction

Answer:

3

Explanation:

1, 2, and 5.

Please mark me brainliest :D

Answer:

6

Explanation:

you count the zero because they are in the right side

Answer:

A and B

Explanation:

The reactants in this chemical equation are C and O₂.

  Given the chemical reaction is:

                   C  +  O₂   →  CO₂

In a chemical reaction, reactants combines to give the product. The reactants are located to the left side of the expression.

The products are found on the right side .

              A   +     B     →     C  

             reactants         products

So, in the given reaction,

  C and O₂ are the reactants and CO₂ is the product.

Answer: B and C

Explanation:

ur welcome

Answer: only the VSEPR mode shows the geometric shape of a formula.

Answer: The weight is the force acting on the object due to gravity. Some standard textbooks define weight as a vector quantity, the gravitational force acting on the object.

Answer:

P = 1.29 atm

Explanation:

Given data:

Volume of cylinder= 29.0 L

Mass of oxygen gas = 45.5 g

Temperature = 325 K

Pressure of gas = ?

Solution:

First of all we will calculate the number of moles of oxygen:

Number of moles = mass/molar mass

Number of moles = 45.5 g/ 32 g/mol

Number of moles = 1.4 mol

Pressure of oxygen:

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

P ×29.0 L = 1.4 mol × 0.0821 atm.L/ mol.K   × 325 K

P = 37.36 atm. L / 29.0 L

P = 1.29 atm

Answer:

B,Movement

Explanation:

Your musculoskeletal system includes bones, muscles, tendons, ligaments and soft tissues. They work together to support your body's weight and help you move. Injuries, disease and aging can cause pain, stiffness and other problems with movement and function.

Answer:

movement

Explanation:

you need your muscles for movement <3

Car and Motorcycle engines are controlled by a chemical reaction which is controlled by gasoline and oxygen.

A chemical reaction may be defined as a process that significantly involves the chemical transformation of one set of chemical substances to another. This process involves the utilization of substances known as reactants that are transformed into other substances known as products.

The fuel in cars and motorcycles delivers the source of energy to them in order to move from one place to another. This fuel significantly contains gasoline which reacts with atmospheric oxygen and results in a small explosion which derives some sort of energy that is finally consumed by the vehicle's engine.

Apart from this, the combustion of fuel is also facilitated in the presence of oxygen which liberates extremely high amounts of carbon dioxide in the atmosphere. This reaction has also occurred in the engines of vehicles.

Therefore, car and Motorcycle engines are controlled by a chemical reaction which is controlled by gasoline and oxygen.

To learn more about Chemical reactions, refer to the link:

https://brainly.com/question/11231920

#SPJ2

Answer:

d. All of the above

Explanation:

The correct way to write this number in scientific notation : 6.022 x 10²³

Scientific Notation is a standard form of writing numbers used in mathematical operations

The rules:

1. Writing order : first digit, decimal point, next digit

2. Then followed by powers of 10 (the value can be +/-)

If the value is> 10 (the power of 10 is +), the decimal point is moved to the left, to the right of the first digit

If the value is <10 ((the power of 10 is -), the decimal point is moved to the right, to the right of the first digit

I certainly didn't count the details of the number of zeros listed, but only saw the answer choices.

And the right ones are: 6.022 x 10²³

Answer:

The answer is D! 100%!

Explanation:

999 Juice Wrld Told Me So, and the internet never lies.

Answer:

earth I think like that because earth is the second planet

Answer:

argon

For example, the K+ ion is isoelectronic with argon. Potassium has 19 electrons and 1 is in the outermost shell: a valence electron. If potassium is ionized and becomes a +1 cation, this is to say that it lost its single valence electron. This is favorable, because it gives potassium a noble gas configuration

Answer:

Explanation:

Atoms

Answer:

Electronegativity is the measure of the ability of an atom to attract electrons to itself. So, higher electronegativity helps atoms take more control over shared electrons creating partial negative regions and partial positive regions which result in dipoles that cause polarity.

Explanation:

(pls mark me brainliest)

Answer:Electronegativity is the measure of the ability of an atom to attract electrons to itself. ... So, higher electronegativity helps atoms take more control over shared electrons creating partial negative regions and partial positive regions which result in dipoles that cause polarity.

Explanation:hope this helps and if im wrong im sorry :)

Answer:

The answer is in the picture below.

Explanation:

Answer:

basically the question asked is the answer

its correct :)

Explanation:

EDGE 2023

Answer:

In my opinion the third one is write.

Explanation:

soil.

Answer:

[tex]\% O=24.6\%[/tex]

Explanation:

Hello!

In this case, since the by-mass percent of an element in a compound is computed by taking into account its atomic mass, the number of atoms in the molecules and the molar mass of the compound, we can write:

[tex]\% O=\frac{2*16.00}{130.18 } *100\%\\\\\% O=24.6\%[/tex]

Best regards!

Answer:

in plant and animal cells

Answer:

In plant and animal cells

Explanation: