Answer:
no
Explanation:
How did life evolve from nonliving matter?
Give the number of protons, electrons and neutrons in one atom of Carbon.
Answer:
6 protons, 6 neutrons, and 6 electrons.
Explanation:
i don’t know:(
please help!
Answer:
its b , Symmetrical and nonpolar
Explanation:
Its c
Answer:
Explanation:
Describe the pattern of the Lewis dot structures of the first 18 elements (include periods and groups/families)?
Answer:
The Lewis dot structures of elements in the same group are the same (except that the name of the element is shown in the structure) while for elements in the same period it increases by one from left to right.
Explanation:
Lewis dot structures are the structures which represent the valence electrons of an atom. The dots in the structure represent electrons in the valence shell of the atom.
Elements in the periodic table are arranged into groups and periods. The groups are the vertical columns whereas the periods are the horizontal rows. The first 18 elements of the periodic table are Hydrogen(H), Helium (He), Lithium (Li), Beryllium (Be), Boron (B), Carbon (C), Nitrogen (N), Oxygen (O), Fluorine (F), Neon(Ne), Sodium (Na), Magnesium (Mg), Aluminum (Al), Silicon (Si), Phosphorous (P), Sulfur (S), Chlorine (Cl) and Argon (Ar). They are found within Groups IA to VIIIA, as well as from period 1 to 3 in the periodic table. elements in group IA have one valence electron; elements in group IIA has two, IIIA has three, IVA has four, VA has five, VIIA has six, VIIA has seven, while VIIIA has eight valence electrons.
Elements in the same group have the same number of valence electrons while the valence electrons of elements in the same period increase by one from left to right. Therefore, the Lewis dot structures of elements in the same group are the same (except that the name of the element is shown in the structure) while for elements in the same period it increases by one from left to right.
The Lewis dot structure of the first 18 elements is shown in the attachment below.
1. Calculate the elevated boiling point of a solution containing 10.0g of sodium chloride
dissolved in 200g of water.
Answer:
100.44 oC (0.438 oC increase in BP)
Explanation:
How does the temperature of the air cause a breeze to blow toward the land?
Answer:
The warm air over the land will rise throughout the day, causing low pressure at the surface. Over the water, high surface pressure will form because of the colder air. ... The wind will blow from the higher pressure over the water to lower pressure over the land causing the sea breeze.
Explanation:
PLZ MARK AS BRAINLEST!!!How to study for a chemistry exam?
Answer:
post it notes ,snacks , or any think that u love to do or eat when u get it right u can eat it
What is the mass of 3.2×10²³ molecules of CH4?
Answer:
Mass? Molar mass? Grams? Or Mols?
What are the atomic numbers for sodium,iron and sulfur???
Answer: sodium-11 iron-26 sulfur-16
Explanation:
Answer:
sodium:11
iron:26
sulfur:16
Explanation:
pls..give..brainlist...to the..above..person..thx..u
Which is NOT true of ionic bonding?
A:
Occurs between metals and non metals
B:
Involves the losing and gaining of electrons
C:
Positive and negative ions are formed?
D:
Involves the sharing of electrons
Answer:
D is wrong
Explanation:
it doesn't involves any kind of sharing of electrons
The statement that is NOT true of ionic bonding is:
D: Involves the sharing of electrons.What is Ionic bondingIonic bonding does not involve the sharing of electrons between atoms. Instead, it involves the transfer of electrons from one atom to another.
In an ionic bond, one atom, typically a metal, donates electrons to another atom, typically a nonmetal, resulting in the formation of positively charged ions (cations) and negatively charged ions (anions). The opposite charges of the ions then attract each other, creating the ionic bond.
Option A is true, as ionic bonding typically occurs between metals and nonmetals.
Option B is true, as ionic bonding involves the losing of electrons by one atom and the gaining of electrons by another atom.
Option C is true, as positive and negative ions are formed as a result of the electron transfer in ionic bonding.
Therefore, the statement that is NOT true of ionic bonding is option D, which states that it involves the sharing of electrons.
Learn more about ionic bonding at
https://brainly.com/question/957239
#SPJ6
I'm not getting any help here
Answer:
Oh I am sorry
Explanation:
How can I help you
Answer:
same
Explanation:
I don't know what is hapening
The whole reason things stay afloat or sink is because water is
Answer:
I think the density of the object determines if it floats or sinks
I need help I really confused it doesn’t make any sense to me
Answer:
i would say shape because the other answers do not logically compute. A is a transformation from solids to liquids or vice versa what B is and C IS THE ANSWER because the only action that is occurring is the tearing of the previous shape of the paper.
Explanation:
Which substance do plants use to capture light energy from the sun? a) Carbon dioxide b) Chlorophyll c) Glucose d) Oxygen
Answer: chlorophyll
Explanation:
The substance that plants use to capture light energy from the sun is referred to as chlorophyll.
The chlorophyll is a colored pigment that is used by the plants for photosynthesis. The function of the chlorophyll is that it absorbs the energy from the sun which is then turned into a chemical energy.
Answer:
I don't know the answer to this either
Explanation:
sorry:(
Help ASAP I will mark brainliest for the correct answer !!!⚡️✨
Answer:
10623 km
Explanation:
3541 x 3 hours
What happens to the air as a stove heats it? This question is about thermal expansion and convection, not “it gets hot”.
20 points for answering
Answer:
When there is heat at the bottom of this air or water, the air or water molecules in contact with the heat start to move, and the molecules spread apart. The heated air or water becomes less dense. It rises up until it gets to air or water with the same density as it has, and when it gets there, it pushes the air or water that was there out of the way. At the same time, new air or water fills the space that was vacated when the heated molecules rose up. The air or water that gets pushed out of the way falls down. This sets up a circular motion. Air or water is heated at the bottom, travels to the top, cools, gets denser, falls, is heated again and the whole cycle starts again. Convection does not occur in space because there is no gravity. Ovens work by convection. The heating coils at the bottom of the oven heat the air which climbs to the top, cools slightly, and falls down again.
Explanation:
how many moles of manganese are in 1 mole of manganese(iv) permanganate
Answer:
4 moles...................
Water can dissolve many other molecules.
Question 2 options:
True
False
Answer:
true
Explanation:
took the test
How does skin defend the body against pathogens?
A. It destroys pathogens with digestive acids.
B. It produces white blood cells that attack pathogens.
C. It blocks pathogens from getting inside the body.
D. It uses tiny hairs to trap pathogens.
RIGHT ANSWERS ONLY !!!
Answer:
450.0
Explanation:
Answer:
16km
sorry if it is wrong they change things up a lot
Explanation:
Chemical bonds release energy when they break apart, and take in energy when they form. How does this observation help explain the energy released by burning wood?
What is the name of the following ionic compound?
AlF3
ASAP QUICCKKKM
Look at picture
Aluminum fluoride is the name of the following ionic compound. The recognised authority on chemical terminology and nomenclature is IUPAC.
IUPAC is the widely acknowledged authority on chemical terminology and nomenclature, and two IUPAC organisations play key roles in this activity: The Interdivisional Commission on Terminology, Nomenclature, as well as Symbols and Division VIII - Chemical Nomenclature or Structure Representation. Unambiguous, uniform, and reliable nomenclature as well as terminology for particular scientific fields are developed by IUPAC as one of its main activities. These recommendations are typically presented as glossaries of terms for particular chemical disciplines. Aluminum fluoride is the name of the following ionic compound.
To know more about IUPAC, here:
https://brainly.com/question/16631447
#SPJ6
Helpppppppp I will mark brainliest
Answer:
9.8 m/s squared
Explanation:
How do most diamonds get their color?
Answer:Most naturally-coloured diamonds are created when trace elements interact with the carbon atoms during the diamond's creation. The presence of chemical elements such as nitrogen, sulphur, and boron can colour diamonds in shades of yellow, green, and blue. ... Trace elements have never been found in pink diamonds.
in other words it depends on the heat of how it is made
HELP PLEASE
When ice changes into water, it is an example of a ___________ change. Also, when water changes into water vapor, it is an example of a _________ change.
A. physical...physical
B. chemical...chemical
C. physical...chemical
D. chemical...physical
What is the moment for the left hand side of this balance?
Answer:
18
Explanation:
6 (weights) x 3 (distance) = moment
Please help thank you!
if a piece of aluminum has a density of 2.7g/cm^3. the mass of 5.2g,what is the volume
Answer:
Gold has a density of 19.3 grams per cubic centimeter, that is, 19.3 g/cm3 or 19.3 g cm-3. Aluminium has a density of 2.7 grams per cubic centimeter, that is, 2.7 g/cm3 or 2.7 g cm-3.
Explanation:
Answer:2.7 g cm-3.
Explanation:Gold has a density of 19.3 grams per cubic centimeter, that is, 19.3 g/cm3 or 19.3 g cm-3. Aluminium has a density of 2.7 grams per cubic centimeter, that is, 2.7 g/cm3 or 2.7 g cm-3.
PLEASE HELP ASAP IT URGENT!!!!!!!!
Answer: IT IS D
Explanation:
In a sample of double-stranded DNA, 12% of the nitrogenous bases are guanine (G). What percentage of the nitrogenous bases in the sample are cytosine
Answer:
12%
Explanation:
The percentage of Guanine and Cytosine in DNA are equal to each other, as one molecule of guanine bonds with one molecule of cytosine.
If 12% of the nitrogenous bases are guanine, then another 12% will be Cytosine.Conversely, the percentage of adenine and thymine in DNA are equal to each other.