Answer:
Gains
Explanation:
An atom of Tellurium gives off energy when it gains an electron to form an ion of Tellurium.
3. Which of the following represents a covalent compound?
a. 02
b. CO2
C. Cl2
d. Naci
For the Question "Which of the following represents a covalent compound?" we have
CO_2Option BFrom the Question we are told
'3. c
Generally
a covalent compound is a kind of bond in which valence electrons are shared b/w the party atoms forming the bond
Therefore
We see covalent compound in CO_2 as they match perfectly the phenomenon that is covalent bonding
Therefore
For the Question "Which of the following represents a covalent compound?" we have
CO_2Option BFor more information on this visit
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Which choice best explains how herd behavior helps young musk oxen survive?
A. Adults keep the young musk oxen warm.
B. Adults teach the young musk oxen how to fight.
C. Adults keep the young musk oxen safe from wolves.
D. Adults warn the young musk oxen when wolves are nearby
Answer:
A
Explanation:
'herd behavior' helps understand the question for the answer
Answer:
A. Adults keep the young musk oxen warm.
Explanation:
This is due today and I’m so confused, if you know any of the answers, please help me out. Thank you!
Which are factors that affect the rate of chemical reactions? Select all that apply.
1.concentration
2.weight
3.temperature
4.surface area
Temperature and surface area are factors that affect the rate of chemical reactions. Hence, options C and D are correct.
What is temperature?Temperature is the measure of hotness or coldness expressed in terms of any of several scales, including Fahrenheit and Celsius.
The rate of a chemical reaction is affected by several parameters. Reactions involving two phases proceed more rapidly when there is greater surface area contact.
If the temperature or reactant concentration is increased, the rate of a given reaction generally increases as well.
Hence, options C and D are correct.
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What is the name of this ion?
Can someone help
(Element or Compound)
C2H30
Answer:
Compound
Explanation:
An element is just like Carbon by itself but when theres more than one element it is a compound.
Answer:
C2H3O is a compound as it is formed when three elementscarbon, hydrogen, oxygen) react together
The mass ratio of H:S:O in sulfuric acid today is 1:8:32. Predict the mass ratio of sulfuric acid in 23th century.
In the 23rd century, the mass ratio of H:S:O in sulfuric acid will remain 1:8:32.
Law of definite proportionsWe know from the law of definite proportions that irrespective of the path through which a chemical compound is obtained, it has a fixed composition by mass.
As such, the composition of a chemical substance does not vary. Therefore, in the 23rd century, the mass ratio of H:S:O in sulfuric acid will remain 1:8:32.
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Metal or Non-metal?
Potassium: metal
Fluorine:
Bromine:
Hydrogen
Beryllium:
Nitrogen
Answer:
Fluorine: non-metal
Bromine: non-metal
Hydrogen: non-metal
Beryllium: metal
Nitrogen:non-metal
how does the chlorine atom attain a stable octet in each of the preceding cases
Answer:
where is the question i can't see it
The percentage of salicylic acid is 60.78% carbon 4.38% hydrogen and the rest is oxygen calculate the empress formula of salicylic acid
Answer: c2h2o
Explanation:
Which phrase defines altitude?
how tightly molecules are packed
a column of air pushing on an area
the force pushing on an area or a surface
the height of a given point above sea level
A sample of Ar(g) is contained in a
cylinder with a moveable piston at an initial
temperature of T. The volume of the
sample is decreased from 4.5 L to 1.5 L
while the pressure is held constant, as
shown in the diagram below.
Answer:
Option (B) is correct.
Explanation:
Initial temperature of the gas is T.
The volume of the sample is decreased from 4.5 L to 1.5 L while the pressure is held constant.
At constant pressure, the relation between volume and temperature is given by :
[tex]\dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}[/tex]
Here, V₁ = 4.5 L, V₂ = 1.5 L, T₁ = T₁, T₂ = ?
So,
[tex]T_2=\dfrac{V_2T_1}{V_1}\\\\T_2=\dfrac{1.5\times T_1}{4.5}\\\\T_2=\dfrac{T_1}{3}[/tex]
So, the final temperature of the gas is [tex]\dfrac{T_1}{3}[/tex]. Hence, the correct option is (B).
Cuando haces ejercicios abdominales estas realizando un trabajo. Si haces el mismo numero de abdominales en la mitad de tiempo que acostumbras, ¿como seria tu rendimiento en terminos de potencia comparandolo con el tiempo normal en que las haces?
Answer:
El rendimiento seria mayor ya que la potencia aumenta.
Explanation:
La potencia aumenta cuando determinado trabajo se realiza en menor cantidad de tiempo.
Plzzzz helppp this submits in 5 minutes plzzzzz helpppp meeeee
List five predictions of climate change and the effects on earth by the year 2100
Answer:
Predictions:
1. Half of the world will be cold and the other half will be hot, which will cause unbalanced state of climate on Earth.
2. The whole world will start to get hotter and there will be no winters or rain which causes water shortage, unable to grow crops. Polar ice is melting is an example.
3. Floods can come, because water level in sea is rising and it could kill all of us.
4. Earthquake can occur because in the Bible Jesus tells about earthquakes, etc at the second coming of Jesus.
Explanation:
What is the molarity of a solution that
contains 20.0 g of KOH dissolved in 1.25
L?
Answer:
0.40m
Explanation:
How does the digestive system work with the muscular system?
A: Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries those
nutrients where they need to go.
B: It doesn't
C: The enteric nervous system's network of nerves, neurons and neurotransmitters extends along the entire digestive tract - from
the esophagus, through the stomach and intestines, and down to the anus.
D: The muscular system allows for movement within the body, for example, during digestion or urination.
Answer:
the answer is not d because you can pee without moving. so its a because without the food nutrient no part of our body can work
Describe the structure or shape of DNA
Answer:
a double helix structure
Explanation:
a two-stranded molecule that appears twisted, giving it a unique shape referred to most commonly as the double helix structure
Which has more mass, one mole of carbon (C) or one mole of copper (Cu)?
Explain.
what are the preparations of alcohols?
Answer:
Alcohols are prepared by SN2 reaction
Alkyl halides can be converted to alcohols by using SN2 reactions with OH- as a nucleophile. Substrates that undergo substitution by SN1 reaction can be converted to alcohols using water as the nucleophile (and it can even be the solvent).Explanation:
Will somebody be my g i r l f r i e n d.
Plzz no guys answer yes
Answer:
yo, for some advice, dont be desperate for a girl, girls dont like desperate boys, how do i know that? because i got a gf.
Explanation:
If 36.5 m of a gas are collected at a pressure of 755 mm Hg, what volume will the gas
occupy if the pressure is changed to 632 mm Hg?
Answer:
Is there any answer options?, if not the answer is V2= 43.6m3
"The volume of the gas is calculated Boyles law. If 36.5 m of a gas are collected at a pressure of 755 mm Hg, then the volume of the gas will be 43.6 [tex]m^{3}[/tex]"
What is Boyles Law?
Boyle's law, also known as the Boyle–Mariotte law or Mariotte's law, would be an experimental gas law that specifies that how pressure of a gas decreases as the container capacity increases.
It can be represented by the formula:
[tex][P_{1} V_{1} =P_{2} V_{2}[/tex]
It is given that, [tex]P_{1}[/tex]= 755 mmHg, [tex]P_{2}[/tex] = 632 mm Hg, [tex]V_{1}[/tex]= 36.5[tex]m^{3}[/tex]. [tex]V_{2}[/tex]= ?
Now, put the value of given data in above formula:
[tex]V_{2}[/tex] = 755× 36.5/632= 43.6 [tex]m^{3}[/tex] .
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An advantage of using renewable energies is? 1.They are harmful to the environment 2.We have a limited supply of them 3.They allow us to take energy from natural processes
Answer:
3. They allow us to take energy from natural processes
Explanation:
There are two major sources of energy namely: renewable and non-renewable. Renewable sources of energy are those natural sources that gets replenished faster than they are utilized, which is contrary to non-renewable sources. Examples of renewable sources of energy are wind energy, solar energy, hydro (water) energy.
According to the question, one advantage or merit that renewable sources have over their counterparts is that they allow us to take energy from natural processes e.g. wind, sunlight etc.
Jessica places 100. g of water at 20.0℃ in an insulated cup. The specific heat capacity of water is 4.18 J/(g℃). What is the final temperature of the water if 5000. J of energy is added to the water in the insulated cup?
Answer:
31.96°C
Explanation:
Given that,
Mass of water, m = 100 g
Initial temperature, [tex]T_i=20^{\circ} C[/tex]
The specific heat capacity of water is 4.18 J/(g℃)
We need to find the final temperature of the water if 5000. J of energy is added to the water in the insulated cup.
The heat added to the water is given by :
[tex]Q=mc\Delta T\\\\Q=mc(T_f-T_i)\\\\\dfrac{Q}{mc}+T_i=T_f\\\\T_f=\dfrac{5000}{100\times 4.18}+20\\\\T_f=31.96^{\circ} C[/tex]
So, the final temperature is 31.96°C.
How do astronomers observe and learn about celestial
objects?
Answer:
Astronomers use a number of telescopes sensitive to different parts of the electromagnetic spectrum to study objects in space. Even though all light is fundamentally the same thing, the way that astronomers observe light depends on the portion of the spectrum they wish to study.
Explanation:
Metal or Non-metal?
Potassium: metal
Fluorine:
Bromine:
Hydrogen
Beryllium:
Nitrogen
Answer:
Fluorine:non-metal
Bromine:non-metal
Hydrogen:non-metal
Beryllium:metal
Nitrogen:non-metal
How many moles of Mg3(PO4)2 are in 350.00 grams of Mg3(PO4)2?
Answer:
1.3 moles/ 1.33150727 moles
Explanation:
350g x 1 mol/262.86g = 1.3 moles
The molar mass of Mg3(PO4)2 is 262.855 g/mol
Atomic weight of the parts:
Mg 24.3050 x 3 = 72.92
P 30.973762 x2 = 61.95
O 15.9994 x8 = 127.995
There are 262.855 grams in one mole, so
350.00 g x (262.855g/1 mole) = 1.33 moles Mg3(PO4)2
NaOH + HF --> NaF + H2O If you are given 3 moles of HF at the beginning of the reaction, how many moles of NaF will be produced?
Answer:
NaOH+HF-------NaF+H2O
1 mole Of HF=1mole of NaF
3mole HF= X
X=3mole of NaF
Can someone answer this asap!! All I know is 188g is incorrect!
Answer:
db gb bg
Explanation:
Please Help
All matter has physical and chemical properties. These properties can be used to identify the type of matter. Which of these statements describes a chemical property?
Select one:
a. A metal is added to a beaker of water, a gas is formed, and the beaker explodes.
b. A certain heavy metal turns to a liquid at room temperature.
c. A 2-feet-long metal bar has a mass of only 176 g.
d. A particular substance evaporates at 30 °C.
Which of the following occurrence indicates that a chemical reaction has taken place?
a. An odor is produced by burning a sugar cube.
b. A puddle is produced by melting an ice cube.
C. A loud noise is produced by crushing a can.
d. A shard of glass is produced by breaking a bottle.