Refer to this portion of the periodic table to answer the question that follows.
3
4
Lithium Beryllium
Li Be
6.939 9.01218
2.1 2,2
5
Boron
B
10.81
2,3
7
Nitrogen
N
14.0067
2,6
8
Oxygen
0
15.9994
2,6
9
Fluorine
F
18.9984
2,7
12.011
2,4
20.183
2,8
Which element in this group would be the least likely to react with other elements?
a
Boron
b
ОООО
Lithium
Oxygen
Neon
d
Answers
Answer:
nitrogen
Explanation:
it has 14.0067 and it helps with the reaction of the other element
Two or more than two atoms with different physical or chemical properties can not combine together to form an element. Therefore, the correct option is option D.
What is element?Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same.
Noble gases are the gases that belongs to group 18 of periodic tables. These gases have the noble gas configuration. These gases are the least reactive. On applying high pressure and temperature, these gases get reactive.
Among the given option Neon Ne is the only element that is belonging to the noble gases. Neon is unreactive.
Therefore, the correct option is option D. Neon is unreactive.
To know more about element, here:
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Related Questions
can someone help me please
Answers
Answer:
A
Explanation:
the circles are more tightly packed together in box A than in box B in the same amount of space
A balloon has a volume of 10,500 liters, and the temperature is 15°C. If the temperature were -25°C, what would the volume of the balloon be?
12,194 L
9,042 L
Answers
Answer: 12,194 L
Explanation:
Given 1 cm3 = 1 mL
A box has dimensions 2.0 cm x 4.0 cm x 8.0 cm.
Answers
Answer: 64
Explanation:
you just multiple the 3 numbers to get the answer (i’m in chemistry and just did this question lol)
why is it important to conduct scientific tests more than one time
Answers
Answer:
you man get different results
All elements on the periodic table of elements are
Answers
First 30
Hydrogen
Helium
Lithium
Beryllium
Boron
Carbon
Nitrogen
Oxygen
Fluorine
Neon
Sodium
Magnesium
Aluminum
Silicon
Phosphorus
Sulfur
Chlorine
Argon
Potassium
Calcium
Scandium
Titanium
Vanadium
Chromium
Manganese
Iron
Cobalt
Nickel
Copper
Zinc
75
Answer:
The rest after that first 30.
Explanation:
Gallium
Germanium
Arsenic
Selenium
Bromine
Krypton
Rubidium
Strontium
Yttrium
Niobium
Molybdenum
Technetium
Ruthenium
Rhodium
Palladium
Silver
Cadmium
Indium
Tin
Antimony
Tellurium
Iodine
Xenon
Cesium
Barium
Lanthanum
Cerium
Praseodymium
Neodymium
Promethium
Samarium
Europium
Gadolinium
Terbium
Dysprosium
Holmium
Erbium
Thulium
Ytterbium
Lutetium
Hafnium
Tantalum
Tungsten
Rhenium
Osmium
Iridium
Platinum
Gold
Mercury
Thallium
Lead
Bismuth
Polonium
Astatine
Radon
Francium
Radium
Actinium
Thorium
Protactinium
Uranium
Neptunium
Plutonium
Americium
Curium
Berkelium
Californium
Einsteinium
Fermium
Mendelevium
Nobelium
Lawrencium
Rutherfordium
Dubnium
Seaborgium
Bohrium
Hassium
Meitnerium
Darmstadtium
Roentgenium
Copernicium
Nihonium
Flerovium
Moscovium
Livermorium
Tennessine
Oganesson
WILL MARK BRAINLIEST
7. When the numbers 5.56 x 10^2 and 3.81 x 10^3 are added the result is:
a) 4.36 x 10^3
b) 4.366 x 10^3
c) 4.366 x 10^2
d) 4.37 x 10^3
Answers
Answer:
option b
Explanation:
556+3810
=4366
=4.366*10^3
Hope it helps
Pls mark as brainliest
How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22°C to 55°C, if the specific heat of aluminum is 0.90 J/g°C?
Answers
Answer:
0.90 degree C
Explanation:
The key to this problem lies with aluminium's specific heat, which as you know tells you how much heat is needed in order to increase the temperature of 1 g of a given substance by 1∘C
In your case, aluminium is said to have a specific heat of
0.90 J g∘ C.
How many sig figs are in:
0.0058096
Answers
The anther of flower contains
Answers
Answer:
here is your answer please mark me as brainlist
Explanation:
Answer # Stamen: The pollen producing part of a flower, usually with a slender filament supporting the anther. Anther: The part of the stamen where pollen is produced. Pistil: The ovule producing part of a flower. The ovary often supports a long style, topped by a stigma.
Is the equation above balanced or unbalanced? Explain? Worth 55 points.
Answers
Answer:
For me, it is balanced
Explanation:
Because the amount of element Zn reaction is equal the production. Also as the amount of Hydrogen and Chloride in the reaction and the production are equal.
What is the difference between a continuous spectrum with an emission line spectrum?
Answers
Answer: A Continuous spectrum is a spectrum that has all wavelengths with no gaps over a wide range. An Emission spectrum is when an electron in an excited state moves to a lower energy level, it emits a certain amount of energy as photons.
I found this information off of a site called “socratic.org.” I hope i could help!
In what circumstance would the complete and net ionic equations for a reaction be identical?
Answers
Answer: Complete ionic equations dissociate all aqueous solutions into ions. Net ionic equations show the change that occurs in chemical reactions and do not show spectator ions that are the same in reactants and products. (b) If no spectator ions were present then complete and net ionic equations would be identical.
Explanation:
SHOW YOUR WORK!!!!!!!!!!!!!!!
An experiment performed to determine the density of lead yields a value of 10.95 g/cm3. The accepted value for the density of lead is 11.342 g/cm3. Find the percent error.
Answers
Answer:
3.45618%
Explanation:
Percent Error = measured value - accepted value/ accepted value x 100
Measured Value: 10.95
Accepted Value: 11.342
Work:
[tex]\frac{10.95-11.342}{11.342} *100[/tex]
[tex]\frac{-0.392}{11.342} *100[/tex] = -3.45618
You cannot have a negative percentage. Therefore the answer is 3.45618%
Which of the following is true about matter?
Answers
Answer:
Full question plssssss what should we find
Jessica poured a liquid into the graduated cylinder below. What is the volume of the liquid?
Answers
Answer:
Answer is B
Explanation:
A student walks 8 km in 30 minutes. What is the student’s average speed in km/h?
Answers
Answer:
16 km per hour
Explanation:
I hope this helped.
Question 3
A milkman adds a very small amount of baking soda to fresh milk.
(a) Why does he shift the pH of the fresh milk from 6 to slightly alkaline?
Answers
Answer:
Curd is acidic in nature, because an acidic substance has less value of pH. A milkman adds a very small amount of baking soda to fresh milk. Why does he shift the pH of the fresh milk from 6 to slightly alkaline? Answer: By making the milk more alkaline, it takes more time to turn into curd.
calculate the mass of 3.011×10^24 molecules of water...................... plzz i need it asap plzz help me plzz
Answers
Answer:
90.10 g
Explanation:
Step 1: Given data
Number of molecules of water: 3.011 × 10²⁴ molecules
Step 2: Calculate the moles corresponding to 3.011 × 10²⁴ molecules of water
We will use Avogadro's number: there are 6.022 × 10²³ molecules of water in 1 mole of molecules of water.
3.011 × 10²⁴ molecules × (1 mol/6.022 × 10²³ molecules) = 5.000 mol
Step 3: Calculate the mass corresponding to 5.000 moles of water
The molar mass of water is 18.02 g/mol.
5.000 mol × 18.02 g/mol = 90.10 g
A 20 N net force acts on an object with a mass of 2.0 kg. What is the object's acceleration? (PLS HELP lol)
Answers
Explanation:
Force = Mass × Acceleration
20 = 2.0 × A
A = 20/2 = 10m/s^2
Using the periodic table, complete the table to describe each atom. Type in your answers
A
B
C
D
E
F
Answers
Answer:
A. 20 B.40 C. Ca D. 10 E. 9 F. F
Explanation:
Answer:
A.) 20
B.) 40
C.) Ca
D.) 10
E.) 9
F.) F
Explanation:
just did it on edge 2020 & got it correct....
A
is a changeable factor in an experiment.
O THEORY
O LAW
O HYPOTHESIS
O CONTROL
O VARIABLE
Answers
Answer:
Variable is a changebale factor in an experiment.
Explanation:
Answer: O VARIABLE
Explanation:
True or False? Nitrogen can get back into the atmosphere when dead plants and animals are decomposed by bacteria. The bacteria break down the larger molecules into smaller ones including nitrates, ammonia, and ultimately N2. True or Fralse
Answers
Answer: True
Explanation:
Answer:
idkkkkkkkklkllkkkkkkkkkkkkkk
define radioactivity and write down properties of radioactive Ray's
Answers
Answer:
Explanation:
So basically is just explain what radioacitvity and then radidoactive
Radioactivity is the spontaneous release of energy from an unstable atom to get to a more stable state. Ionizing Radiation is the energy that comes out of a radioactive atom. Radioactive isotopes are radioactive atoms of the same element that have different numbers of neutrons.
Answer:
Radioactivity is the spontaneous release of energy from an unstable atom to get to a more stable state. Ionizing Radiation is the energy that comes out of a radioactive atom. Radioactive isotopes are radioactive atoms of the same element that have different numbers of neutrons.
❤❤❤❤❤❤
Explanation:
Please Help!!! Time LImit. Extra Points and Brainiest.
Acids are a group of molecules with similar physical and chemical properties. Acids react with metal, but vegetable oil does not. What can you infer from this observation? Choose the two statements that apply.
A. The combination of atoms in acids and oil result in very different properties.
B. Acids and oil have different properties because they have different shapes.
C. The atoms present in molecules affect their properties.
D. Vegetable oil is most likely some type of acid.
Answers
Answer:
A and D
Explanation:
How does the control group differ from the experimental group? Choose all the correct options.
A The control group contains more than one experimental variable
B
The control group is used as a standard to compare results to, but the experimental group is not
c The experimental group is used as a standard to compare results to, but the control group is not
D The control group is not tested or measured
E The control group does not contain the experimental variable, but the experimental group does.
F The control group does contain the experimental variable, but the experimental group does not
Answers
Answer:
B,D,E
Explanation:
Please please help :(
Answers
Answer: ¹²₅C
Explanation:
¹²₅C is incorrect. The superscript is the atomic mass. This varies between each element. The subscript is the atomic number. This doesn't change. You will see every element has the correct atomic atomic number except for Carbon. Carbon should have atomic number 6.
18 grams
4 kilograms
8 kilograms
Answers
Answer:
1 18 grams
2 500g
4 960 grams
5 7 kilograms
(01.04 MC)
Describe two distinct ways in which the skin could help cool the body on a hot day. (5 points
Answers
the blood vessels dilate to draw body heat away from the body and towards the surface of the skin
sweat glands release sweat, when sweat evaporates it releases heat
What do a hypothesis and scientific law?
Answers
Answer:
If you mean "What is a hypothesis and the scientific law?" than hypothesis means a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation and scientific laws or laws of science, are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena. The term law has diverse usage in many cases across all fields of natural science.
Answer:
If you mean "What do hypothesis and scientific law have in common" than a hypothesis is a limited explanation of a phenomenon; a scientific theory is an in-depth explanation of the observed phenomenon. A law is a statement about an observed phenomenon or a unifying concept.
plz tell me I will also give brainiest. forces can be ________ or unbalanced
Answers
Answer:
balanced
Explanation:
hope this helps
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{ \: Balanced}}}}}[/tex]
Explanation:
Forces can be balanced or unbalanced.
[tex] \bigstar {\sf{ \: \: Balanced \: force}}[/tex]
When a number of forces acting on a body do not change its state of rest or uniform motion in a straight line , the forces are said to be balanced forces. For example : In the game of tug of war, two teams pull a rope in opposite directions. When the two teams exert equal and opposite forces on the rope, the rope remains steady and does not move in any direction. It appears as if no force is acting on the rope. Thus, the two forces acting on the rope in this case are balanced forces.
[tex] \bigstar{ \sf{ \: Unbalanced \: force}}[/tex]
When a number of forces acting on a body change it's state of rest or uniform motion in a straight line, the forces are said to be unbalanced forces. For example, if we push a toy car towards east, it moves towards east. If it is pushed towards west, it moves towards west. This unbalanced force produces motion.
Hope I helped!
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~TheAnimeGirl