Answer:
durage
Explanation:
durage just doesn't make sense compared to the other 3
Answer:
Origin of the substance
Explanation:
Origin of a substance doesnt affect toxicity but all other options do
Identify which of the following equations are balanced and which ones are not balanced
A. CH4 +202 —> CO2 + 2H20
B. 6CO2 + 6H2O—> C6H12O6+602
C. 2Na + H2O —> 2NaOH+ H2
Answer:
A. balancedB. UnblalancedC. UnbalancedExplanation:
Nguyên tử khối của đồng
Answer:
huwattt
Explanation:
i can't understand
Tính axit giảm dần của các chất C6H5 OH (1) ,p – CH3 OC6H4 OH (2), p-NO2C6H4OH (3) pCH3COC6H4OH (4), p-CH3C6H4 OH (5) là:
Answer:
di ko po Alam sorry
Explanation:
sorry sorry sorry sorry sorry
What is metabolism? I know the answer.
Answer:
Metabolism is the set of life-sustaining chemical reactions in organisms. The three main purposes of metabolism are: the conversion of the energy in food to energy available to run cellular processes
Explanation:
Increasing the frequency _________________ the wavelength. Group of answer choices decreases increases does not change
Answer:
heightens
Explanation:
How do we find the atomic size of an atom?
Answer:
The size of an atom can be estimated by measuring the distance between adjacent atoms in a covalent compound. The covalent radius of a chlorine atom, for example, is half the distance between the nuclei of the atoms in a Cl2 molecule.
Protons and neutrons have opposite, but equal magnitude, charges. An atom contains the same number of protons and electrons Neutrons and electrons are found in the nucleus of an atom. Protons have about the same mass as electrons. Electrons make up most of the mass of an atom. which one is true about subatomic particles
Answer:
the true statement is an atom contains the same number of electron and protonExplanation:
let us see the behaviour of the sub atomic particles
nutrons and protons found in the nucleus of an atoman atom have the same number of electron and proton but they have different chargenutron is chargeless particlemost mass of the atom concentrated in the nucleus of an atomelectrons have almost 0 mass from an atommass of proton and mass of nutron are equvalent or almost equalthere are many properties of subatomic particles i have listed some of them above .
I think it is help ful for youPlz help me plz will give Brainly
Explanation:
a brittle, High melting solid : option B (MgCl2).
1) H2S
2) H2O
3) I2
weakest to strongest.
hope this helps you.
Describe the difference between at atom and an ion in regards to their substaomic
particles
Answer:
difference between atom and ion
Explanation:
What is an Atom?
The smallest unit of matter. It is indivisible and consists of neutrons, electrons and protons. Atoms can take part in chemical reactions. Combination of atoms together forms molecule. Always the number of protons and electrons are equal. Independent life may or may not be feasible within a solution. Nucleus of the atom is formed by protons and neutrons. Surrounding the nucleus are the electrons.
What is an Ion?
Atoms where the electrons and protons are not equal are called ions. Ions are charged particles. They can be either positively charged ions or negatively charged ions. If an atom is charged electrically it is considered an ion. If an atom contains maximum number of electrons than protons, then it is called anion. If an atom contains maximum number of protons than electrons, then it is called cation. Independent existence in a solution. When an atom gains or loses electrons, ion is formed.
To make you understand how atom and ion are different from each other, here are the some major differences between atom and ion:
what is the molarity of Li in a solution that contains of 46.552ppm lithium ferrocyanide Li3fe(cn)6
Answer:
hgfdjsuejssj_uyghgjiyr656⁸8⁴83jbv
HELP PLEASEEEEEEEEEEEEEEEEEEE
Answer:
1-air
2-decrease
3-water
4-gas
5-liquid
I THINK the answer to part b is A but I am not entirely sure
Explanation:
Identify the one thing that you were most surprised by in the quiz. Explain
why.
Adhesion is the attraction of molecules of one kind for molecules of a different kind... water is adhesive because the water molecules are attracted to the straw and therefore adhere to it. Thus, adhesive forces are important for sustaining life. This is because of these forces, water can flow up from the roots to the tops of plants to feed the plant, allowing it to move against gravity through plant cells. Another example of why its important that water is adhesive is the movement of water to the tops of trees and the drainage of tears from tear ducts in the corners of your eyes. Or how water droplets stick to the end of the pine needles. These are all examples of adhesion.
Hope this helped you- have a good day bro cya)
why is calcuim (ca) in group 2. period 4 on the periodic table
Answer:
Calcium (Ca) is in group 2 and period 4 on the periodic table be because Calcium has 2 valence electrons and 4 electron shell. Thus, calcium is a metal like all other group 2 element.
Explanation:
Si un átomo tiene 18 electrones, cuántos protones tiene?
Answer:
huhhhhhhhhj
hshshhshshshshshsh
Ribosome factory part or worker
In order for a light bulb to be turned on in a circuit, it must have what kind of switch?
Answer:
Both switches must be closed in order for the circuit to be complete and for the bulb to light. (This would indicate the 'armed' status of this burglar alarm.) Magnetic switches come in 2 varieties - "Normally Closed" and "Normally Open". These 2 terms describe the state of the switch when it is NOT being controlled by the magnet.
Explanation:
detailed description of how group 1 atoms bond with group 7 atoms
Answer:
group 7 atoms react
Explanation:
When a group 7 element takes part in a reaction, its atoms each gain one electron. These atoms form negatively charged ions . The ions have a stable arrangement of electrons, with a complete outer shell.
Can water molecules form ions by
themselves?
Write a balanced chemical equation based on the following description:
the reaction of gaseous tricarbon octahydride with oxygen gas produces gaseous carbon dioxide and water vapor
Answer:
C3H8(g) + 5O2(g) = 3CO2(g) + 4H2O(g)
Explanation:
1. ¿Cuál de los factores se deben emplear para convertir: a. ¿Número de moles de cloro en número de moles de NaCl? b. Moles de sodio a moles de cloro C. Moles de cloro a moles de sodio. 2 Na + CI, - 2 Naci
Ayudaaa
Answer:
Número de moles de cloro en número de moles de NaCl
Explanation:
espero que si sea la correcta
Give one example of a question that science could test. Then, explain in your own words why it is an example of a scientific question. Please!
Answer:
Questions are an essential part of science. ... They state the final question in a way that can be answered by investigation or experiment. A good scientific question is: “What effect does the pH of water have on radish seed germination?” Good scientific questions are defined, measurable, and controllable.
explain why an atom can only emit specific wavelengths of light and not every possible wavelength
Answer:
The electrons in an atom can only occupy certain allowed energy levels to a lower one, the excess energy is emitted as a photon of light, with its wavelength dependent on the change in electron energy. This is why an atom can only emit specific wavelengths of light and not every possible wavelength.
The green light emitted by a stoplight has a wavelength of 505 nm. What is the frequency of this photon? (c = 3.00 × 10⁸ m/s).
Answer:
5.9405*10^14 Hz
Explanation:
Remember the equation c=v*λ
v=frequency
λ=wavelength
By manipulating the equation, we can get it in terms of frequency:
c/λ=v
Now convert wavelength to meters (1nm=m*10^-9)
5.05*10^-7m (2 decimal places were shifted to make the number between 1-10, hence the -7 exponent)
Use the manipulated equation:
(3.00*10^8)/(5.05*10^-7), which yields:
5.9405*10^14 Hz (or s^-1)
The frequency of the photon will be "[tex]5.9405\times 10^{14} \ Hz[/tex]".
According to the question,
Wavelength,
[tex]\lambda = 505 \ nm[/tex]or,
[tex]= 5.05\times 10^{-7} \ m[/tex]
As we know the equation,
→ [tex]c = v\times \lambda[/tex]
or,
→ [tex]v = \frac{c}{\lambda}[/tex]
By putting the values, we get
[tex]= \frac{3.00\times 10^8}{5.05\times 10^{-7}}[/tex]
[tex]= 5.9405\times 10^{14} \ Hz[/tex]
Thus the above answer is right.
Learn more:
https://brainly.com/question/14523087
What mass of carbon dioxide is produced from the complete combustion of 4.60x10^-3g of methane?
Answer:
Explanation:
CH4 + 2O2 ==> CO2 + 2H2O
mols CH4 = grams/molar mass
Using the coefficients in the balanced equation, convert mols CH4 to mols CO2.
Now convert mols CO2 to grams. g = mols x molar mass.
0
10
o
20
30
40
90
60
80
50
g
70
0
1
2
3
4
6
9
7
8
5
g
.1
.2
.3
.4
.6
.7
.8
.9
.5
9
Can this balance be read to the nearest milligram?
O no
O yes
Answer:
30
Explanation:
yes of courseeee i cant balance with the nearest milligram
What is difinition of chemistry
What is the name of the ion with 4 neutrons and 4 electrons with a 1- charge?
A: Hydrogen
B: Berrylium
C: Lithium
D: Helium
Answer:
C.
Explanation:
I search it on Gøogle
What energy keeps the water cycle going?
Answer:
the the that keeps the water cycle going is heat
Why would you expect the materials used to make pot holders to be poor conductors of heat?
Answer:
Pot holders are meant to protect your hand from the heat of the pot, and so it would need to be a poor conductor of heat in order to do its job correctly. Silicon dioxide is a solid at room temperature and methanol is a liquid.
Explain the process of ionization in at least 1 paragraph.
Brainliest goes to best explanation!
Explanation:
Ionization is the process by which ions are formed by gain or loss of an electron from an atom or molecule. If an atom or molecule gains an electron, it becomes negatively charged (an anion), and if it loses an electron, it becomes positively charged (a cation). Energy may be lost or gained in the formation of an ion.
