Which substance tends to form anions when bonding with other elements?
oxygen
calcium
argon
sodium
Answers
Answer:
A) Oxygen
Explanation:
i just took the test.
Related Questions
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.
2. In which sentence is the term heat used correctly?
A. Heat moves from a cold cup to warm tea.
B. A thermometer measures the heat in an object.
C. The heat from the hot cup warms my hands.
D. Warm soup contains more heat than cold soup does.
Answers
Answer:
c. The heat from the hot cup warms my hands
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.
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
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I hope this helps!!
True or false chemistry. No links.
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:
Which diagram or diagrams represent a compound?
Answers
Answer:
A - X Only
Explanation:
• 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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The atomic mass of hydrogen is 1. How many protons does a hydrogen atom have?
Answers
How many grams in 2.33 mols of H20 (water)?
Answers
Answer:
41.9866
Explanation:
18.02x2.33
Hope this helps!
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PLS HELP ASAP!
How many years?
The radioactive isotope carbon-14 is used for radiocarbon dating. The half-life of carbon-14 is 5.73×103 years.
A wooden artifact in a museum has a 14C to 12C ratio that is 0.745 times that found in living organisms. Estimate the age of the artifact.
use graph
Answers
Answer:
about 5 years i think
Explanation:
I've tried all the methods i know
it's about 5 years
hope it helps
The age of the artifact is equal to 2.5 × 10³ years when the half-life of carbon- 14 is 5.73 × 10³ years.
What is the half-life period?The half-life of a radioactive element is defined as the time that is required to decrease the original quantity of a radioactive isotope to half after decay.
The half-life of a radioactive isotope is the feature of the element and does not depend upon the actual amount of the radioactive isotope.
Given, the ratio of the initial and left amount of ¹⁴C is :
N = 0.745 N₀
The half-life period of the ¹⁴C isotope = 5.73 × 10³ years
The rate constant of the decay of radioisotope can be calculated from the below-mentioned formula:
[tex]\displaystyle k=\frac{0.693}{t_{1/2}}[/tex]
[tex]\displaystyle k=\frac{0.693}{5.73 \times 10^3}[/tex]
k = 0.123 × 10⁻³ yr⁻¹
The age of the artifact can be calculated as:
[tex]\displaystyle t =\frac{2.303}{k} log\frac{N_0}{N}[/tex]
[tex]\displaystyle t =\frac{2.303}{0.123\times 10^{-3}} log\frac{N_0}{0.735 N_0}[/tex]
t = 2.5 × 10³ years
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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
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
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%.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
the energy of an electron in a multielectron atom is determined by
Answers
Answer:
by principal quantum number (n) and azimuthal quantum number (l)
Explanation:
I used the web to answer so I'm not sure if this is right
Patterns are everywhere in science. Is there a pattern in how one can predict how many covalent bonds an atom will form? Explain your reasoning or provide evidence to support your answer.
HELP
Answers
Actual answer: 6
Well I also need help with this, this should help the both of us:
A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.
Explanation:
The first two period elements can form maximum 4 covalent bonds. However, third or higher period elements can make higher number of bonds for example; SF6.
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)
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 .
with increasing altitude, air density also increases... true or false
Answers
Answer:
false
Explanation:
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.
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
Help me pls I will mark you as brain
Answers
Answer:
D. 1, 2, and 3
Explanation:
how many oxygens are used per glucose molecule in glycolysis?
Answers
Answer:
0
Explanation:
What is the name of this process?
Answers
Answer:
Fertilization
Explanation:
Fertilization occurs when the nucleus of both a sperm and an egg fuse to form a diploid cell, known as zygote. The successful fusion of gametes forms a new organism.
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
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.
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:
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Which change is likely to happen to an atom of the element strontium (Sr) during bonding?
(1 point)
It will gain electrons, forming a positive ion.
It will gain electrons, forming a positive ion.
It will give up electrons, forming a negative ion.
It will give up electrons, forming a positive ion.
It will gain electrons, forming a negative ion.
Answers
Answer: It will give up electrons, forming a positive ion.
During bonding, strontium atom will give up electrons, forming a positive ion.
STRONTIUM:
Strontium (Sr) is an element in group 2 of the periodic table. Just like every other element in group 2, strontium posseses two valence electrons in its outermost shell. Strontium will undergo bonding with other atoms by losing its two (2) valence electrons to form a cation i.e. a positively charged ion. Therefore, strontium atom will give up electrons, forming a positive ion when it undergoes bonding.Learn more at: https://brainly.com/question/21085681?referrer=searchResults