Explanation:
low or no reactivity ....
Neon and argon are both in Group 18 of the periodic table. The property that they are most likely to share is low or no reactivity. The correct option is d.
What are argon and neon?A chemical element found in the periodic table is argon. It is the third most common gas in the atmosphere and has an atomic number of 18.
In the periodic table, neon is a chemical element. It is a monatomic, noble gas with the atomic number 10 that is found in the environment.
Although a few liquid molecules do rise to the top, the vast majority stay close to the bottom. Furthermore, the molecules in the gas phase move more swiftly than those in the liquid phase.
Therefore, the correct option is d, low, or no reactivity regarding the mutual property of argon and neon.
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What is the mode of action of most antifungal drugs?
inhibition of protein synthesis.
disruption of membranes.
inhibition of RNA synthesis.
destruction of chitin
inhibition of folic acid precursor synthesis
Inhibition of protein synthesis is the mode of action done by most antifungal drugs.
What is the mode of action of antifungal drugs?Antifungals drugs inhibit the synthesis of ergosterol the main fungal sterol, polyenes which interact with fungal membrane sterols and 5-fluorocytosine inhibits macromolecular synthesis.
So we can conclude that inhibition of protein synthesis is the mode of action done by most antifungal drugs.
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Cassiterite is an ore of a metal tin. What is an ore?
Answer:
Cassiterite is an ore of Sn.It is also called tinstone and has molecular formula of SnO
2 . It is heavy, metallic, hard tin dioxide that is the major ore of tin. It is colourless when pure, but brown or black when iron impurities are present.
help me my homework pls
Answer:
1. Boron B 13 2 Non-Metal
2. Aluminium Al 13 3 Metal
3. Tin Sn 14 5 Metal
4. Helium He 18 1 Non- Metal
5. Neon Ne 18 2 Non- Metal
6. Calcium Ca 2 4 Metal
7. Francium Fr 1 7 Metal
8. Gold Au 11 6 Metal
Convert 7.6 × 105 cal to kiloJoules
Microwaves make _________ get hot. They make water molecules _______ against each other. The water molecules turn into ___________ and _____________ the popcorn.
please help
Answer:
food , push , gas , pop
Explanation:
The weak ionization constant (Ka)
for HF is equal to:
[H3O][F]
[HFJ[H20]
[HF]
[F-][H30+]
Please help
Answer:
[tex]\displaystyle K_a = \frac{[\text{H$_3$O}^+][\text{F}^-]}{[\text{HF}]}[/tex]
Explanation:
Write the reaction of HF (a weak acid) with water:
[tex]\displaystyle \text{HF}_\text{(aq)} + \text{H$_2$O}_\text{($\ell$)} \rightleftharpoons \text{H$_3$O}^+_\text{(aq)} + \text{F}^-_\text{(aq)}[/tex]
Recall that the equilibrium constant expression for an equilibrium reaction is the product of the concentration of the products over the product of the concentration of the reactants raised to their respective coefficients.
The equilibrium constant expression for this equation will hence be:
[tex]\displaystyle K_a = \frac{[\text{H$_3$O}^+][\text{F}^-]}{[\text{HF}]}[/tex]
Note that pure solids and liquids are not included in the equilibrium expression.
In conclusion:
[tex]\displaystyle K_a = \frac{[\text{H$_3$O}^+][\text{F}^-]}{[\text{HF}]}[/tex]
write the name of high quatity of coal
Answer:
Write the name of high quatity of coal
Explanation:
chlorine water exposed to sunlight equation?
Answer:
Cl2 (aq) + 2H2 O HOCl(aq) + Cl-(aq) + H2O Equation 1 The hypochlorous acid dissociates almost immediately into hydrogen and hypochlorite ions (OCl-).
Explanation:
what challenges arise when nuclear material is removed from a power plant?
Answer:
it destroy the surrounding area
A mixture of three gases (N2, Ar, and O2) at 2.6 atm is found to contain 23% N2 and 3.0% Ar by mass. What is the partial pressure of O2
Given that the mixture of the three gases has a pressure of 2.6 atm, the partial pressure of O₂ is 1.924 atm
Dalton's law of partial pressureThis law states that at contact temperature, the total pressure of a mixture of gases is equal to the sum of the partial pressure exerted by each gas. Mathematically, it is expressed as
Total pressure = partial pressure of A + partial pressure of B
How to determine the partial pressure of O₂Percentage of N₂ = 23%Percentage of Ar = 3%Percentage of O₂ = 100 – (23 + 3) = 74%Total pressure = 2.6 atmPartial pressure of O₂ =?Partial pressure of O₂ = (percentage of O₂) × total pressure
Partial pressure of O₂ = 74% × 2.6
Partial pressure of O₂ = 0.74 × 2.6
Partial pressure of O₂ = 1.924 atm
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please help. im having trouble with this question
Answer:
It's b
Explanation:
What is another name for a Grasshopper?
Answer:
The scientific name of the grasshopper is Caelifera.
Explanation:
hope this helps.
Answer:
caelifera
Explanation:
that’s the scientific name >_<
. If 3 moles of calcium reacts with 3 moles of oxygen, then a Which substance is the limiting reactant? b How many moles of calcium oxide are formed?
Let's see the balanced equation
[tex]\\ \rm\Rrightarrow 2Ca+O_2\longrightarrow 2CaO[/tex]
Hence
As moles are equal given
Ca should be the limiting reagent2mol Ca produces 2 mol CaO3mol Ca produces 3mol CaOwhat is emission spectrum and absorption spectrum?
Answer:
When matter interact with EMR then spectrum is obtained. We can understand both spectra using Bohr's hydrogen spectrum. let's have a look on Bohr's hydrogen spectrum what does it say. It says when a electron gains energy it moves from one energy level to other(lower to higher) which is Absorption phenomenon. When the electrons returns from excited state to ground state they emits several spectral lines. this spectrum is called as emission spectrum. inshort the
Emission spectrum is spectrum of electromagnetic radiations that were emitted from the higher energy state(Excited state) to lower energy state(Ground state). and study of emission spectrum is known as AES (Atomic Emission spectroscopy).
When an atom or ion is subjected to EMR, it absorbs certain level of radiations, and when this absorbed energies are studied under spectroscopy they are plotted as absorption spectrum, and study of Absorption spectrum is known as AAS (Atomic Absorption spectroscopy).
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Explain why the available amount of water per person differs between countries
Answer:
because in the different countries it is distributed unevenly.
Explanation:
hope this helps
Complete:
If two or more elements or chemical compounds come into contact with one another and there is enough ________________present, a chemical change may take place.
a. When a substance undergoes a chemical change, the chemical ______________of the substance is altered.
b. A chemical change can also be called a chemical _______________.
question has to do with chemistry and is in the picture.
Answer:
the answer is 69
Explanation:
hope this helps
have an awesome day -TJ
Will give brainliest
sorry i know this:
4. 2 methyl 2 heptene
write any two conditions due to which demagnetization occur
Answer:
1) because of heating
2) because of hammering
What are the most likely dates of the full moon
Answer:
C
Explanation:
Answer C Full moon occurs approx 2weeks after new moon
what volume of N2 is required to convert 5.0L of hydrogen gas to ammonia? assume that all gases are at the same temperature and pressure and that the reaction is complete
Answer:
Approximately [tex]1.7\; {\rm L}[/tex].
Explanation:
Nitrogen [tex]{\rm N_{2}}\, (g)[/tex] reacts with hydrogen [tex]{\rm H_{2}}\, (g)[/tex] at a [tex]1:3[/tex] ratio to produce ammonia [tex]{\rm NH_3}\, (g)[/tex]:
[tex]{\rm N_{2}}\, (g) + 3\; {\rm H_{2}}\, (g) \to 2\; {\rm NH_{3}}\, (g)[/tex].
The ratio between the coefficient of [tex]{\rm N_{2}}\, (g)[/tex] and the coefficient of [tex]{\rm H_{2}}\, (g)[/tex] is:
[tex]\begin{aligned}\frac{n({\rm N_{2}})}{n({\rm H_{2}})} = \frac{1}{3}\end{aligned}[/tex].
Under the ideal gas assumptions, the same ratio would apply to the volume of [tex]{\rm N_{2}}\, (g)[/tex] and [tex]{\rm H_{2}}\, (g)[/tex] in this reaction:
[tex]\begin{aligned}\frac{V({\rm N_{2}})}{V({\rm H_{2}})} = \frac{n({\rm N_{2}})}{n({\rm H_{2}})} = \frac{1}{3}\end{aligned}[/tex].
[tex]\begin{aligned}V({\rm N_{2}})= \frac{1}{3}\, V({\rm H_{2}})\end{aligned}[/tex].
Given that [tex]V({\rm H_{2}}) = 5.0\; {\rm L}[/tex]:
[tex]\begin{aligned}V({\rm N_{2}}) &= \frac{1}{3}\, V({\rm H_{2}}) \\ &= \frac{1}{3}\times 5.0\; {\rm L} \\ &\approx 1.7\; {\rm L}\end{aligned}[/tex].
(Rounded to [tex]2[/tex] significant figures.)
cacoH2+2NH4Cl-cacl2+2H2O+HN3
A. how many grame of cacl2 will be formed from the of
A20gm of cacoH2
B 40gm of NH4Cl
Answer:
a 63.428gm
b 41.5 gm
Explanation:
a
70 gm CaCOH2=111gm of CaCl2
40 gm =(111*40)/70
=63.428gm
b
107 gm of NH4Cl =111 gm of CaCl2
40 gm gives =(111*40)/107
=41.5 gm
A 4M solution means there are
______ moles of ______
per one _____ of _____.
There are _____ ml within _____ Liter.
Q. How many moles of HCL are within 2,000ml of a 0.4M solution of HCL?
Q. How many grams of KCl are within 2L of a 0.4M KCL solution?
Answer:
Molarity=number of moles÷volume(L)
An envelope could be a source of DNA evidence.
True
False
Answer:
True
Explanation:
DNA can be extracted from bite marks, cigarette buds, postage stamps on envelopes, and envelope flaps for DNA analysis.
Answer:
false. a envelope is what the DNA evidence goes in
Explanation:
Which property describes a mixture? select three options. it can be separated by physical methods. it has a single chemical composition. it can appear different from different sources. it cannot be described by a chemical symbol or formula. it cannot have more than one state of matter.
The property of mixture which describes a mixture are it can be separated by physical methods, it can appear different from different sources and it cannot be described by a chemical symbol or formula.
What are mixtures?Mixtures are the compounds which are formed by the addition or combination of one or two elements or compounds.
As in the mixtures many states of matters are present and it will be filtered by using various physical methods, and it is not chemically shown by single chemical symbol or formula. Mixtures are also of two types:
Homogeneous mixtures are those in which equal compositions all over the volume is present.Heterogeneous mixtures are those in which different composition all over the volume is present.Hence options (1), (3) and (4) are correct.
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which two products are formed when lipids are broken down
Answer:
Fatty acids and glycerol.
Explanation:
I hope this helps! :)
(The process is called lipolysis by the way)
What type of change will alter the makeup of the elements or molecules of a substance?
A. chemical
B. physical
C. reactor
What is the molarity of a solution that contains 30. grams of naoh in 500. milliliters of solution?.
Answer:
1.5 mol/L
Explanation:
molarity = moles/litres
NaOH = 23 + 16 + 1 = 40 g/mol
[tex] ? \: mol \: naoh \: = 30 \: g \: naoh \: \times \\ \\ \frac{1 \: mol \: naoh}{40 \: g \: naoh} = 0.75 \: mol \: naoh[/tex]
molarity = 0.75 mol NaOH ÷ 0.5 L = 1.5 mol/L NaOH
4Al + 3O2 --> 2Al2O3 coefficients
Answer:
coefficients: 4, 3, 2
Explanation:
Which weather condition is NOT associated with warm fronts??
Answer:
A Winter storm usually does not come with a warm fronthey warm front.
Explanation:
When the front passes over an area it means to change in the weather. Many. Many friends cause weather events such as rain thunderstorms gusty winds tornadoes and hurricanes.