Answers
Answer:
3
Explanation:
2+2=4-1=3 quick maths
Related Questions
___ and ___ are located in the nucleus of the atom while ____ exist in orbitals in the empty space outside of the nucleus
Answers
Answer:
Neutrons and Protons, Electrons
Explanation:
Neutrons and protons are in the inside as electrons orbit around it in a circular pattern
what is galvanization ?
Answers
Explanation:
The most common hot dipping process for industrial applications is galvanizing, which refers to the coating of zinc over iron or steels for rust proofing. It is an extremely versatile and easy means of providing corrosion protection for construction materials exposed to atmospheric conditions
25 points!!! please Which types of elements areconsidered neutraland Where are these types of elements found on the periodic table
Answers
Elements which composed of an equal amount of three components protons, neutrons and electrons are considered neutral elements. example of neutral elements are hydrogen, helium, lithium and beryllium...
If a sample of nitroglycerin containing 2 mL (density = 1.592g/mL) is detonated, how many total moles of gas are produced? If each mole of gas occupies 55L under the conditions of the explosion, how many liters of gas are produced? How many grams of nitrogen gas are specifically produced?
Answers
Total moles of gas = 0.1225
Volume of gas produced : 6.7375 L
mass of Nitrogen : 0.588 g
Further explanationGiven
2 ml of Nitroglycerin(ρ=1.592 g/ml)
Required
Total moles of gas
Solution
Nitroglycerin detonated ⇒ decomposition reaction
4C₃H₅N₃O₉(s)⇒ 6N₂(g)+12CO(g)+10H₂O(g)+7O₂(g)
mass of Nitroglycerin :
[tex]\tt mass=2~ml\times 1.592~g/ml=3.184~g[/tex]
moles of Nitroglycerin :
[tex]\tt moles=\dfrac{3.184}{227,0865~g/mol}=0.014[/tex]
Total moles of gas:
[tex]\tt \dfrac{6+12+10+7}{4}\times 0.014=0.1225[/tex]
Volume of gas produced :
[tex]\tt 0.1225\times 55=6.7375~L[/tex]
moles of Nitrogen :
[tex]\tt \dfrac{6}{4}\times 0.014=0.021[/tex]
mass of Nitrogen :
[tex]\tt 0.021\times 28=0.588~g[/tex]
how many atoms are in 1.50 moles of He?
Answers
Compare and contrast atoms and molecules. Cite specific examples from the readings, as well as what you may already know, to support your comparison.
Answers
Answer:
The main difference between an atom and a molecule lies in the size: while the atom is the smallest unit into which matter can be divided into any of its states, a molecule is the union of a group of atoms, that is, this composed of several atoms. Thus, for example, a water molecule is composed of two hydrogen atoms and one oxygen atom (H2O). Therefore, it can be said that atoms are the smallest unit in which the chemical elements of the world can be divided, while molecules are the particles of matter that are formed through the combination of these elements.
(sand) and (Sand with water) both of them are heterogeneous
mixture isn't it?
Answers
Answer:
yes true
Explanation:
both are heterogeneous
Could someone pls help me if you know it!!
Answers
Answer:
Beautiftul, begging under F
honest, beginning in thrid line under A
hopeful, fifth line under F
Explanation:
Which process produces the energy that powers a solar calculator?
A. Nuclear fusion
B. Chemical decay
C. Radioactive decay
D. Nuclear fission
Answers
Answer:
For solar energy, Nuclear Fusion occurs. You can research this for more detail.
Explanation:
Answer:
nuclear fission
Explanation:
HELP!!! ASAP!!!! WILL MARK BRAINLIEST!!!!
A certain covalent compound contains sulfur bonded to chlorine. Which of the following statements about this compound is correct?
Question 5 options:
A)
Electrons will reside closer to sulfur, and the bond will be non-polar.
B)
Electrons will reside closer to sulfur, and the bond will be polar.
C)
Electrons will reside closer to chlorine, and the bond will be polar.
D)
Electrons will reside closer to chlorine, and the bond will be non-polar.
Answers
Answer:
C) Electrons will reside closer to chlorine, and the bond will be polar
Explanation:
Electrons tend to be closer or attracted to high electronegativity and sulfur has less electronegativity than chlorine. Therefore, electrons will reside closer to chlorine. To find out if it is polar or nonpolar, according to the electronegativity chart you can find online, you can see that the electronegativity of sulfur is 2.5 while the electronegativity of chlorine is 3.0. Because the difference between these two is a slight change, it would be slightly polar. So, the bond will be polar.
Answer:
Electrons will reside closer to chlorine, and the bond will be polar.
Explanation:
Which type of reaction is NaCI + AgNO3
NaNO + AgCI?
O synthesis
O decomposition
O oxidation
O replacement
Answers
Answer:
replacement
Explanation:
There are two types of replacement reactions.
Double replacement:
It is the reaction in which two compound exchange their ions and form new compounds.
AB + CD → AD +CB
Single replacement:
It is the reaction in which one elements replace the other element in compound.
AB + C → AC + B
The given reaction is double replacement reaction because anion and cation of both reactants exchanged with each other.
Other options are incorrect because,
Decomposition reaction:
It is the reaction in which one reactant is break down into two or more product.
AB → A + B
Synthesis reaction:
It is the reaction in which two or more simple substance react to give one or more complex product.
Oxidation:
Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.
What number do we use to represent the connection of a solid, liquid, or solvent?
Answers
Answer:Molarity tells us the number of moles of solute in exactly one liter of a solution. (Note that molarity is spelled with an "r" and is represented by a capital M.) We need two pieces of information to calculate the molarity of a solute in a solution: The moles of solute present in the solution
Explanation:
ehat is the name of the hydrate Ba(OH)2 8 H2O
Answers
Answer: Barium hydroxide octahydrate
Explanation: