A part of the periodic table is shown
11
Na
19
K
37
Rb
12
Mg
20
Ca
38
Sr
Which of the following elements has the highest atomic mass (amu)?

a Sodium (Na)
b Calcium (Ca)
c Strontium (Sr)
d Potassium (K)

Answer:

There will be more collisions and so a greater pressure. The number of particles is proportional to pressure, if the volume of the container and the temperature remain constant. ... Volume is inversely proportional to pressure, if the number of particles and the temperature are constant.

Answer:

There are so many carbohydrate which acts as bio fuel...Few of them glucose ,Cellulose ,starchtion:as bio fuel...Few of

Answer:

C: Mg

Explanation:

Hybridization of atomic orbitals is a fundamental concept introduced by Pauling that describes the mixing of orbitals at an atom which adds a definite direction to the Lewis - shared electron pair or electron chemical - bond concept.

Carbon(C) can hybridized on sp, sp2 and sp3 simply because it's valence shell gives room for it.

For silicon(si), when forming covalent bonds with other atoms, it's 3s and 3p orbitals are mixed with each other to form new hybrid orbitals.

Magnesium in itself doesn't hybridized except in magnesium hydrides.

Boron orbitals(B): when boron forms bonds with three other atoms like borazine, they are hybridized to either the sp2 or hybridized to the sp3 which occurs when boron forms bonds with four atoms just as is in metal borohydrides.

Answer:

When iron sulfide is exposed to oxygen it reacts rapidly, releasing large amounts of heat.

Explanation:

i took this from my notes- so whatever aligns with that. sorry if this didnt help but i think its genuinely c heating

Answer:

Brittleness

Explanation:

hope this helps u

Answer:

Carbon is a non metal

Explanation:

Non metals are brittle.

A girl with greater mass wearing shoes with more tread?

Answer:Warm ocean currents originate near the equator and move towards the poles or higher latitudes while cold currents originate near the poles or higher latitudes and move towards the tropics or lower latitude.

Explanation:

Answer:

True

Explanation:

There is such thing called tectonic plated

Answer:

True

Explanation:

The crust is made of plates called tectonic plates that move as fast as your finger nails grow, the amount of movement can create both tall and deep earth wonders. Such as the Mariana Trench and Mount Everest. And it causes earthquakes when they slide together.

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Answer:

Substance I is a neutral substance and substance II is a base.

Answer

they atract

Explanation:

Answer:true

Explanation:

List two adaptations the cave glow worm has for capturing prey in a cave. droos a line of silk to trap palle - silk comes from glands in the mouth. a produces light to lure pret a insects are drawn towards light and get trapped in 3.

Answer:

all living things

Explanation:

Answer:

Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability.

Answer:

Glass

Explanation:

Answer:

Explanation:En la tabla periódica los elementos están ordenados de forma que aquellos con propiedades químicas semejantes, se encuentren situados cerca uno de otro. Los elementos se distribuyen en filas horizontales, llamadas períodos.

Answer:

Melting point

Explanation:

Pure substances have sharp melting and boiling points while impurities lower the melting point and raise the boiling point

Answer:

In Non-metals

Period - reactivity increases as you go from the left to the right. Group - reactivity decreases as you go down the group.

Explanation:

Answer:

the atoms in the metals form a matrix through which outer electrons can move freely. 

Explanation:

A flow of charged particles is an electric current. A metal has a built in supply of charged particles that can flow from one location to another- the pool of shared electrons.

Answer:

50

Explanation:

Answer:

salt water, soda, orange juice, coffee

Explanation:

Answer: salt water, soda, orange juice, coffee

Explanation: On Edge!!!!!!!!

Answer:

The answer to this would be D. Sodium metal reacts with water

The correct option is D. Sodium metal reacts with water to form sodium hydroxide and hydrogen gas.

A chemical reaction leads to the transformation of a substance. The chemical bonds when bonds between reactants break and form a new chemical bond in products.

Quarts crystal fractures, when struck, is an example of physical change. Sugar dissolved when poured into tea is also a physical change. Liquid water turning to vapor at 100 degrees Celcius is an example of boiling.

When sodium metal reacts with water it will react with water and bonds between sodium and water reacts and will form sodium hydroxide and hydrogen gas.

Na(s) + H2O(aq) →   NaOH(l)+ H2(g)

Therefore, The correct option is D. Sodium metal reacts with water to form sodium hydroxide and hydrogen gas.

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https://brainly.com/question/22817140

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Answer:

d

Explanation:

im trying i dont actuly know

The ocean floors are the seafloor or the ocean bottoms are called seabeds. The deepest part of the ocean floor is called trenches. Thus, option B is correct.

The ocean floors are said to be the seabeds that comprise of plains, mountains, and canyons, and are termed submarine relief. It ranges from the continental shelf, slope, rise, abyssal plain, ridges, and trenches.

The continental shelf is the first part and is at the least depth of the ocean floors, while the trenches are present at the greatest depth of the seabeds.

The trenches are the deepest part where the sunlight can not penetrate and ranges from 8000 meters and beyond. They are formed due to tectonic plate activity.

Therefore, option B. the trenches are the deepest part of the ocean beds.

Learn more about ocean floors here:

https://brainly.com/question/2475381

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Answer:

Different number of neutrons

Explanation:

Isotopes are different versions of an element, in which the only difference is that they have different numbers of neutrons in the nucleus, and therefore slightly different atomic masses.

Answer:

Conduct more trials.

Add less variables.

Choose a different person

Explanation:

More trials gives plenty of data to be examined.

Less variables makes for less confusion, and less things to keep track of.

Different person ensures that the experiment is not being done by one single person who could be messing up the data

Answer:

conduct more trials, less variables, more controls

Explanation:

more trials make it so if something goes wrong you have other data, less variables because you should only test one variable at a time, more controls helps set your base line for the experiment

Answer:

A. the speed at which reactants change to products over a given time

Explanation:

The rate of reaction is a measure of the speed of a chemical reaction. In chemical kinetics, the speed at which the reaction occurs is the reaction rate.

Answer:

mechanical weathering through the process of ice wedging

Explanation:

Answer:

In cold climates, the freezing and thawing that occurs causes rapid mechanical weathering through the process of ice wedging. In warmer climates, chemical weathering is more rapid because the chemical reactions that dissolve rocks and minerals are accelerated by warm temperatures.

Explanation:

:)

a binary compound

Sorry that I dont have an explanation....its just something that needs memorized :)

Hope this helps! Please correct me if I'm wrong!