Answer:
The answer is B. False
Explanation:
The equation c = 2.95 g show how much it costs to buy gas at a gas station on a certain day. n the equation c represents the cost in dollars and g represents how many gallons of gas were purchased.
Write down at least four (gallons of gas cost) pairs that fit this relationship.
1.
In the modem periodic table, periods with heavier elements are longer than periods with lighter elements. This difference in period length exists because -
A the nuclei of lighter elements are more stable than those of heavier elements.
B. Othere are many more heavy elements than light elements.
CO Mendeleev originally designed the periodic table this way.
D.
D. heavier elements have more electron sub-shells than lighter elements
Answer:
c
Explanation:
In the modern periodic table, periods with heavier elements are longer than periods with lighter elements. This difference in period length exists because there are many more heavy elements than light elements.
The periodic table is arrangement of elements in groups and periods. Elements in the same group of the periodic table have the same number of valence electrons while elements in the same period have the same number of shells.
Period 1 contains the lightest elements, hydrogen and helium. However, in the periodic table, we notice that periods with heavier elements are longer than periods with lighter elements. This is because there are many more heavy elements than light elements.
Learn more: https://brainly.com/question/11155928
I will brainless who can answer this all pleaseeeeej
Answer:
ENGINE COOLANT
Explanation:
Another example of thermal expansion on the part of a liquid can be found inside the car's radiator
molecular formula of sulphur trioxide by criss cross method
Answer:
Sulfur trioxide: SO3.
Explanation:
How I came to this conclusion:
I noticed that the compound consists of non-metals, therefore it must be a covalent compound -
meaning I use prefixes for compounds.
Sulfur is S. Simple enough. Trioxide has the prefix of tri, meaning "3". Therefore there is 3 atoms of oxygen. Combine them and I get SO3.
Don't be confused with sulfite: (SO3)2− and sulfate: (SO4)2−
PLEASE HELP!!
Which element in Fe(NO3) is a metal?
O
N
Fe
Answer:
Explanation:
Most periodic tables have a staircase thick line on their right side. This line separates the metals from the non metals.
O (oxygen) and N (nitrogen) are on the right side of the staircase.
Fe is on the left.
Those elements on the right side of the staircase are non metals.
Those elements on the left of the staircase are metals, so Fe is a metal.
an amount of nitrogen undergoes a physical change and increases its volume. What can be known about this physical change? The boiling point of the nitrogen increased. The mass of nitrogen increased. The color changed. The density changed.
Answer:
it was a chemical reaction
Explanation:
D
Explanation:
is the answer
What resources are sometimes shared by squirrels and certain birds answer quick I need to get to the bus stop!!
Answer:
I know someone that has the answer
Explanation:
I know someone that has the answer
5. _______ is the combining capacity of atom with other atoms to form a molecule or a compound .
Answer:
valancy
Explanation:
For each pair of terms below, write a sentence that summarizes how they are different.
thermal conductor, thermal insulator
thermal expansion, thermal contraction
What is the final temp of
solver if the temperature of
25.89 sample of silver
starts out at 30.0°C and
40.5) of heat is added?
The specific heat of silver
130235 ](°C).
how does electron-pair repulsion determine the molecular shape?
Answer:
The shape of a covalent molecule can be predicted using the Valence Shell Electron Pair Repulsion (VSEPR) theory. Very simply, VSEPR theory says that the valence electron pairs in a molecule will arrange themselves around the central atom (s) of the molecule so that the repulsion between their negative charges is as small as possible.
Explanation:
There are two types of chemical compound one is covalent compound and another is ionic compound in chemistry. In ionic bonds, electrons are completely transferred. Electron-pair repulsion play an important role in determining the molecular shape using VSEPR theory.
What is chemical Compound?Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.
The shape of a covalent molecule can be predicted using the Valence Shell Electron Pair Repulsion (VSEPR) theory. VSEPR theory says that the valence electron pairs in a molecule will arrange themselves around the central atom (s) of the molecule so that the repulsion between their negative charges is as small as possible.
Therefore, electron-pair repulsion play an important role in determining the molecular shape using VSEPR theory.
To learn more about chemical compound, here:
https://brainly.com/question/26487468
#SPJ2
Which of the following elements is an Alkali Metal?
A) Lithium
B) Neon
Fluorine
D Beryllium
sulphur (iv)oxide reacts with hydrochloric acid solution .give reasons
Answer:
Hydrogen chloride - diluted solution. Sulfur dioxide ( SO 2) reacts with chlorine gas (Cl 2) in the presence of moisture to give HCl and H 2 SO 4. ... H 2 SO 4 and HCl are strong acids in aqueous solutions. If more HCl is added to the solution, then carbon dioxide gas, sodium chloride and water are produced.
what is the technique for measuring the heat change for a reaction called?
Answer: calorimetry
Explanation: calorimetry: the measure of the amount of heat involved in a chemical or physical process.
answer in the blank 1. Broken glass jar 2. Food scraps 3. Cooked rice 4. Plastic bags 5. Water
I don't understand ur question
What is the density of an object having a volume of 8 ml and a mass of 22 grams?
Answer:
0.32gcm3 . I miss the old Kanye, straight from the 'Go Kanye
Chop up the soul Kanye, set on his goals Kanye
I hate the new Kanye, the bad mood Kanye
The always rude Kanye, spaz in the news Kanye
I miss the sweet Kanye, chop up the beats Kanye
I gotta to say at that time I'd like to meet Kanye
See I invented Kanye, it wasn't any Kanyes
And now I look and look around and there's so many Kanyes
I used to love Kanye, I used to love Kanye
I even had the pink polo, I thought I was Kanye
What if Kanye made a song about Kanye
Called "I Miss The Old Kanye, " man that would be so Kanye
That's all it was Kanye, we still love Kanye
And I love you like Kanye loves Kanye
Explanation:
Answer:
2.75
Explanation:
D= [tex]\frac{mass}{volume}[/tex]
[tex]\frac{22}{8}[/tex]= 2.75
Hope this helps!
Which letter corresponds with the location of f orbitals on the periodic table?
Answer:
The correct would be C i think :)
Explanation:
Stay postivie :)
HELPP PLEASE!!!
What kind of metal is Co?
Alkali Metal
Transition Metal
Alkaline Earth Metal
Answer:
Transition Metal
Explanation:
Hey there is a really easy tool called PTable that is an interactive periodic table that does all kind of things. needed in Chem
Describe the journey that a carbon atom inside a fossil fuel will take to become a carbon atom inside a plant
When fossil fuels are burnt, CO2 is released into the air and is taken up by plants during photosynthesis to form glucose and subsequently starch.
Fossil fuels contain a large proportion of carbon atoms. When fossil fuels are burnt, these carbon atoms are released as carbon dioxide and escape to the atmosphere as atmospheric CO2 in air.
Recall that plants take up the CO2 in air during the process of photosynthesis. This CO2 becomes combined with water in the presence of sunlight to form glucose.
This glucose is converted to starch and stored in plant tissues. This is how the carbon atom inside a fossil fuel becomes a carbon atom inside a plant.
Learn more: https://brainly.com/question/1388366
Pls help i'll mark you the brainlest What force is needed to make ball fall on Earth if it has a mass of 13kg
Answer:
gravity.
Explanation:
Is table salt dissolved in water a homogeneous or heterogeneous mixture
Answer:
heterogeneous
Explanation:
I said so jit
what is meant by dative covalent bond
A coordinate covalent bond, also known as a dative bond, dipolar bond, or coordinate bond is a kind of two-center, two-electron covalent bond in which the two electrons derive from the same atom. The bonding of metal ions to ligands involves this kind of interaction. This type of interaction is central to Lewis theory.
what does the bottom layer represent?
Answer:
A blanket
Explanation:
bottom layer is a nice comfy blanket you could use to sleep with
Explanation:
Something comfy you can use for yourself or others.
Someone pls help me I will make you brain
Answer:
less methane
Explanation:
methane is increasing because of global warming
Chemistry
How does the difference in size of particles affect the rate of diffusion?
Explanation:
Heavier particles will move more slowly and so will have a slower rate of diffusion. Smaller particles on the other hand will diffuse faster because they can move faster.
Explanation:
smaller particles diffuse faster
larger particles diffuse slower
Determine the number of atoms in the following chemical formulas.
1. Naci
Answer:
2 atoms
Explanation:
how many electrons do atoms like to have in their outer shell?
Explanation:
In general, atoms are most stable, least reactive, when their outermost electron shell is full. Most of the elements important in biology need eight electrons in their outermost shell in order to be stable, and this rule of thumb is known as the octet rule.
Can someone make me a periodic table with color?
Answer:
The periodic table is also split into four blocks: s = red, p = green, d = yellow, and f = blue.
What type of front is created when a warm air mass moves in to replace a
retreating cold air mass?
The type of fron created is a "warm" front.
Sodium reacts with chlorine to form the compound sodium chloride, or salt. The chemical formula below shows how the two elements combine into a compound.
2Na + Cl2 → 2NaCl
If the total mass of the reactants is 58.44 amu, what will be the total mass of the products?
116.88 amu
60 amu
58.44 amu
29.22 amu
Answer:
Its C
Explanation:
The law of conservation of mass says no atoms can be created or destroyed just rearranged so the mass at the beginning before the reaction would stay the same after it
Considering the Law of Conservation of Matter, the correct answer is the third option: the total mass of the products will be the same and has a value of 58.44 amu.
The Law of Conservation of Matter is also called the law of conservation of mass or the Law of Lomonósov-Lavoisier. This law postulates that "the mass is not created or destroyed, only transformed."
This means that the reagents interact with each other and form new products with physical and chemical properties different from those of the reagents because the atoms of the substances are ordered differently. But the amount of matter or mass before and after a transformation (chemical reaction) is always the same, that is, the quantities of the masses involved in a given reaction must be constant at all times, not changing in their proportions when the reaction ends.
In other words, then the mass before the chemical reaction is equal to the mass after the reaction.
So, in this case, if the total mass of the reactants is 58.44 amu, the total mass of the products will be the same and has a value of 58.44 amu.
Finally, the correct answer is the third option: the total mass of the products will be the same and has a value of 58.44 amu.
Learn more:
https://brainly.com/question/13383562?referrer=searchResultshttps://brainly.com/question/14236219