Please hwelp mee with thwis..
Pwease just answer it on a correct answer and I'll give swome THANKS and 5 RATINGS.. Especwially I'll MARK IT AS BRAINLIEST..
Thank You if someone answer this!!
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Answers
1. matter
2. oxygen
3. water
4. hydrogen
5. compound
hope it helps :)
Related Questions
A golf ball with a mass of 46 grams will accelerate five times as fast as a
pool ball weighing 130 grams. Which of Newton's laws is this an example of?
Answers
Answer:
Newtons first law
Explanation:
focre=mass x acceleration
The atomic mass of hydrogen is 1. How many protons does a hydrogen atom have?
Answers
Someone answer these both for me
Answers
Answer:
a b
Explanation:
I think so take it with a grain of salt
what is the percent of phosphorus by mass in phosphoric acid h3po4
Answers
Explanation:
% phosphorus by mass
= (mass of phosphorus ÷ mass of phosphoric acid) × 100%
= (30.974 g/mol ÷ 97.994 g/mol) × 100%
= 31.61 %∴ percent of phosphorus by mass in phosphoric acid 31.61%.• An atom of _________ has an atomic mass of ______ because it has ______ protons and _____ neutrons ?
Answers
Answer:
carbon 12 6 6
Explanation:
the rays produced in a cathode tube are
Answers
Answer:
Electrons
Explanation:
Cathode rays carry electronic currents through the tube. Electrons were first discovered as the constituents of cathode rays. J.J. Thomson used the cathode ray tube to determine that atoms had small negatively charged particles inside of them, which he called “electrons.”
The rays produced in a cathode tube are electrons which are present in the shells surrounding the nucleus of an atom.
What is an atom?
An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.
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Air pressure is greatest near the surface of the Earth in the _______.
Question 7 options:
Thermosphere
Mesosphere
Troposhere
Exosphere
Answers
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Air pressure is greatest near the surface of the Earth in the Troposphere .
Which describes an atom that has fewer neutrons than protons and more electrons than protons?
A. negative compound
B. positive compound
C. positive ion
D. negative ion
Answers
I hope this helps!!
When piece of very hot metal releases energy into a cup of water, if the temperature of metal drops
by 426.7°C, and the final temperature of the metal is 31.2°C, what was the initial temperature of
the metal?
Answers
Answer: The answer is 457.9
Explanation: Realistically all you have to do is add both of the temperatures and then you can figure out the original heat. Since the heat drops 426.7 degrees and it comes to 31.2 degrees its 426.7 + 31.2 = 457.9.
What type of front is created when a warm air mass moves in to replace a
retreating cold air mass?
Answers
The type of fron created is a "warm" front.
How many Joules of energy are needed melt 40.0 g of ice?
Answers
answer: 334 J
explain: A total of 334 J of energy are required to melt 1 g of ice at 0°C, which is called the latent heat of melting.
An element in group 2 will form ionic bonds and with
Answers
Answer:
With an element from group 16
Explanation:
Because the elements from group 2 have 2 valence electrons, and the elements from group 16 need to get more 2 electrons to get stable
ASAP PLEASE
What are the rules for naming binary compounds that are formed between nonmetals. Are these compounds ionic compounds or covalent compounds, explain why?
Answers
Answer:
Explanation:Compounds between Nonmetals and Nonmetals
Compounds that consist of a nonmetal bonded to a nonmetal are commonly known as Molecular Compounds, where the element with the positive oxidation state is written first. In many cases, nonmetals form more than one binary compound, so prefixes are used to distinguish them.
# of Atoms 1 2 3 4 5 6 7 8 9 10
Prefixes Mono- Di- Tri- Tetra- Penta- Hexa- Hepta- Octa- Nona- Deca-
the compounds are covalent, not ionic
does sulfuric acid have high or low electrical conductivity
Answers
Answer:
It has a high electrical conductivity, caused by dissociation through protonating itself, a process known as autoprotolysis. The comparable equilibrium constant for water, Kw is 10−14, a factor of 1010 (10 billion) smaller.
When the temperature of the air in a hot air ballon increases, what happens to the volume of the gas?
Answers
Answer:
As the temperature increases, the gas particles absorb more heat energy. They speed up and move farther away from one another. So the increase in temperature causes an increase in volume. (Boyles Law)
3. Connect the electron configuration of Columns 6 (Oxygen) and 7 (Fluorine) with the
tendency to gain or lose valence electrons easily and the strength of the tendency for
electronegativity.
Answers
Answer:
I DON'T KNOW
Explanation:
I DON'T KNOW
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how many oxygens are used per glucose molecule in glycolysis?
Answers
Answer:
0
Explanation:
WWE Roman reigns vs john cena summerslam 2021 who won?
Answers
Answer:Reigns then hit two Superman punches and a spear to score the pinfall. Result: Roman Reigns defeated John Cena via pinfall to retain the title.
Explanation:
Answer: Roman Reigns I hope this helps
Explanation:
Eleven matches were contested at the event, including one match on the Kickoff pre-show. In the main event, Roman Reigns defeated John Cena to retain SmackDown's Universal Championship.
Is college worth it
Answers
Answer:
in my opinion not really
Explanation:
A. Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will remain the same.
B. Changes can occur to certain physical properties of the substance, but the overall shape of the substance will remain the same.
C. Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.
D. Changes can occur to chemical properties of a substance, but the chemical composition of the substance remains the same.
Answers
Answer:
changes can occur to physical properties of a substance, but the chemical composition of the
substance remain the same.
Answer:
Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.
Explanation:
I got 100% on edg quiz 2022
Someone pls help me I will mark you as brain
Answers
Answer:
1st one is the answer water cannot be purified by nature pls add me in brainliest
why is beryllium-8 different from beryllium-9 in terms of the nuclear particles?
Answers
Answer:
Beryllium-8 (8Be, Be-8) is a radionuclide with 4 neutrons and 4 protons. It is an unbound resonance and nominally an isotope of beryllium. It decays into two alpha particles with a half-life on the order of 10−16 seconds; this has important ramifications in stellar nucleosynthesis as it creates a bottleneck in the creation of heavier chemical elements. The properties of 8Be have also led to speculation on the fine tuning of the Universe, and theoretical investigations on cosmological evolution had 8Be been stable.
Explanation:
Help me pls I will mark you as brain
Answers
Answer:
D. 1, 2, and 3
Explanation:
which of these is chemical property
Answers
Meat or fish spoilage is often due to spoilage bacteria which utilize. to grow in population.
glucose and free amino acids.
glucose
free amino acids
sulfides
Answers
Answer:
glucose and amino acids
Explanation:
with increasing altitude, air density also increases... true or false
Answers
Answer:
false
Explanation:
What is the charge of Cl2?
Answers
Answer:
Cl2 does not have any charge
Explanation:
But when it is present in its ionic form then chlorine have -1 charge on it. But charge on chlorine varies from -1 to +7
PLEASE HELPP!!!!
What kind of metal is Cu?
Alkaline Earth Metal
Alkali Metal
Transition Metal
Answers
Answer:
transition metal
Explanation:
Answer:
Copper is a Transition metal.
Explanation:
Use the periodic table website! It tells you what kind of metals the elements are and if they are metals or nonmetals.
Website: ptable.com
Suppose it takes 5 minutes for half of your sample to radioactively decay. If you started with 80 atoms, and have only 5 radioactive atoms left, how many half-lives have occurred?
Answers
Allison adds ice cubes to water which is at room temperature. Over time, the ice melts.
Read the statement above. How does adding ice to the room temperature liquid change the average kinetic energy of the particles of the
liquid?
Answers
Adding ice to the liquid decreases the average kinetic energy of the particles of the liquid.
The temperature of a substance is defined as a measure of the average kinetic energy of the molecules of the substance. The average kinetic energy of the molecules of a substance is directly proportional to the temperature of the substance.
This implies that if I increase the temperature of a substance, the average kinetic energy of the molecules of the substance increases and vice versa.
Ice is at a lower temperature than water at room temperature. Thus, adding ice to water at room temperature decreases the temperature of the water and consequently decreases the average kinetic energy of its particles.
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