Answer:
I will draw how the city looks like
Kevin is working on a model that shows the positions of Earth, the Moon, and the Sun during the phases of the Moon. How should he position them to show a New Moon?
HELLP PLEASE
_ Na+Cl 2 -> _NaCl
reactant side number of atoms?
Na = ?
Cl = ?
Product side number of atoms?
Na = ?
Cl = ?
what is the final equation?
_ Na+Cl 2 -> _NaCl
Answer:
2Na+Cl2 -> 2NaCl
Explanation:
1Na+1Cl 2 -> 1NaCl (i'm assuming they want you to balance it so ill start with 1)
Na = 1
Cl = 2 (it is 2 because it is Cl2, meaning that there are 2; but remember that you cannot change this number only coefficients)
Na = 1
Cl = 1
We need to have 2 Cl on the product side
1Na+1Cl 2 -> 2NaCl
Now we need 2 Na on the reactants side
The final equation is
2Na+Cl2 -> 2NaCl
Now it is balanced
Na = 2
Cl = 2
--
Na = 2
Cl = 2
How many liters of nitrogen would be needed to react with 93.0 liters of hydrogen using the balance
equation below:
N2 + 3H2 → 2NH3
Answer:
7NH
Explanation:
I could swear all of these are nobles gases but here’s the question.
Which one of these is NOT a Noble Gas
A) Argon
B) Helium
C) Xenon
D) Neon
Write the correct formula for each compound named below. Show the from which it is formed.
Answer:
Explanation:
Sodium Chloride = Na⁺ + Cl⁻ = NaCl
Lithium bromide = Li⁺ + Br⁻ = LiBr
Magnesium fluoride = Mg ⁺² + F⁻ = Mg₂F.
Potassium Oxide = K⁺ + O⁻² = K₂O
Calcium sulphide = Ca⁺² + S⁻² = CaS
Aluminum Iodide = Al⁺³ + I⁻ = Al I₃
Barium bromide = Ba⁺² + Br⁻ = BaBr₂
Aluminum sulphide = Al⁺³ + S⁻ = Al₂S₃
Calcium Phosphide = Ca⁺² + P⁻³ = Ca₃P₂
Lithium Nitride = Li⁺ + N⁻³ = Li₃N
Magnesium Oxide = Mg⁺² + O⁻² = MgO
Aluminum Fluoride = Al⁺³ + F⁻ = AlF₃
Lithium Oxide = Li⁺ + O⁻² = Li₂O
Beryllium iodide = Be⁺² + I⁻ = BeI₂
What is the most likely oxidation state of nitrogen?
O A. -2
OB. +3
O C. +4
O D.-3
D is the answer -3 m
Buoyancy, density, ductility and solubility describe the ________ of matter
Answer:
the answer is physical properties
What does the poitof incidence mean?
Answer:
Point of incidence: The point on the surface where the incident ray strikes the surface is called the point of incidence. Reflected ray: The ray of light that bounces back from the surface of an object is called a reflected ray of light.
Explanation:
Search
List and Describe the two groups of clastic sedimentary rock.
Answer:
Clastic sedimentary rocks are formed from rock fragments or clasts; chemical sedimentary rocks precipitate from fluids, and biochemical sedimentary rocks form as precipitation from living organisms.
Sedimentary rock is classified into two groups based on how they form. They are clastic and chemical. Clastic sedimentary rock is formed as bits of weathered rock become cemented together. Because all kinds of rock are subject to weathering many different minerals can make up this group of rocks.
Which rate law is consistent with the mechanism?
Which is an energy source for a coyote?
Answer:
The coyotes are both a plant and meat eaters whose common food is 90% of their diet, is small animals. Rabbits, hares, birds, snakes, fish, crustaceans, and insects are all on the menu.
hopefully this is right :))
Answer:
sun
Explanation:
how do i get my skin perfect without expensive products? I'm asking bc my face and neck have been massively breaking out with pimples and sweat bumbs. i can go out in public its so bad plsss help
Answer:
if you are a teen then its pretty normal as during the age of adolescent sweat gland become active and pimples take place on you face , no need to worry at this your face will become beautiful again .
but if you are above 25 then it is a time to worry , you should consult a doctor or you can use alovera jel or any other home remedies. :)
Determine the number of molecules present in 1.53 mol of carbon monoxide
Answer:
hi
Explanation:
this is my first time on this app so what do i do
What is the name of this nuclear process ?
Answer:
Fission
Explanation:
In an ecosystem, which of the fcHlowing is NOT a trait of living organisms?
Contains DNA
Can reproduce
Made of cells with membrane
Responds to stimuli
Answer:
responds to a stimuli or made of cells with membrane
Explanation
Which term describes living things? abiotic biotic
Answer:
biotic
Explanation:
What do acids do in solution?
What group on the periodic table has the fewest valance electrons
Answer:
Alkali metals
Explanation:
The lowest number of valence electrons is found in the alkali metals (group 1), which have only one valence electron per atom.
Answer:
Alkali metals:) im 100% sure because i just got done learning everything in the periodic table:)
Explanation:
what is the difference b/w combustion and synthesis reaction ?explain with example
Answer:
A synthesis reaction occurs when two or more reactants combine to form a single product in a double replacement reaction two compounds exchange elements. Combustion reaction occurs when a substance reacts quickly with oxygen combustion is commonly called burning. Example'- for synthesis reaction is iron+ oxygen —≥ water . Example:- for combustion reaction is often gaseous products.
may be this was ur answer I hope it might help u
If the moon is full on January 16, on approximately what date will it be full in February?
A. February 10
B. February 22
C. February 1
D. February 12
Answer:
February 12th.
Explanation:
Trust me.
a car motor running as a car travels down the road.
Kinetic Energy
Potential Energy
Answer:
kinetic energy
Explanation:
force is used
Identify any incorrect formulas. Explain your answer.
a. Mg2(SO4)3
b. Rb3As
c. BeCl3
d. NaF
Wish I could award more points but I'm running low.
The formula of a compound is written based on the valency of each bonded atoms. The formulas Mg₂(SO₄)₃, Rb₃As are incorrect. Such compounds does not exist.
What is chemical formula?The formula of a chemical compound is written based on the number of atoms participated in bonding. Magnesium is second group element having two valence electrons.
Magnesium thus donates its two electrons into the bonding atom or group. The sulphate group SO₄ have a valency of 2 it gains two electrons from Mg when bonded.
Thus the formula of magnesium sulphate being MgSO₄ and not Mg₂(SO₄)₃. Similarly Rb is a second group metal having two valence electrons. Its valency being two. As is a halogen with valency one. Thus they cannot form a compound like Rb₃As.
Hence, option a and b are incorrect formulas.
To find more about chemical formulas, refer the link below:
https://brainly.com/question/11995171
#SPJ2
I am wondering how to find out the blood type of my grandson...my daughter is A+..father is in question...she is stressed to the max on the father of this baby boy.
Answer:
A person can identify their blood type at home using a rapid blood typing kit. Using the kit requires a person to pierce a finger with a needle. The kit comes with a card that contains chemicals known as reagents. These test for the presence of the antibodies and Rh factor.
Explanation:
Just like eye or hair color, our blood type is inherited from our parents. Each biological parent donates one of two ABO genes to their child. The A and B genes are dominant and the O gene is recessive. For example, if an O gene is paired with an A gene, the blood type will be A.
Which of the following is not an example for electroplating? A Tin cans for storing food
B Chromium used on bath taps to get shiny appearance
C Copper used for making electrical wires
D To protect iron objects used in machineries, from corrosion
If you answer you will get brainiest
Please answer and thank
Answer:
C. Copper used for making electrical wires
Explanation:
When a coating of a particular metal is applied on another metal, the process is termed as electroplating. The process is carried by the process of electro-deposition. This process is carried on in order to enhance the quality of the objects manufactured. The coating helps in resistance and provides an attractive appearance to the object.
Option C. is not an example of electrocoating because on the copper wires no other metal coating is done. In all the other three options, coating has been done on the object.
An element ceases to be that element if the particle it loses or gains is a neutron.
True or false
Answer:
False
Explanation:
An element is named according to the number of protons in the nucleus. If it gains or loses a neutron, it becomes a different isotope of the same element.
The given statement is false.
Answer:
FALSEExplanation:
#CARRYONLEARNING
Can someone please fill in the blanks?
Answer:
g3gegsgehshhwwjwuwuwu2euyeeyeyyy
Answer:
helium formula He
Ammonia formula NH3
methane formula CH₄
chlorine formula Cl-
Explanation:
Describe how greater distance affects the appearance of an object’s size and brightness
Answer:
Distance also affects the apparent brightness of an object. A distant, but very energetic star can appear dimmer to us than a lower-energy, but closer one. ... Each of their effective temperatures results in a different brightness for the object. The quasar, however, is very far away, and so appears dim.
Explanation:
questions.
1) The degree of polarity of a bond is indicated by
A. Ionization energy difference
B. The shape of the molecule
C. Electronegativity difference
D. The partial charges of the molecule
2) When electrons are shared unequally, chemists characterize
Answer:
d
Explanation:
the partial charges of the molecule
Equilibrium constant Kp for the reaction P4(s) + 6Cl2(g) 4PCl3(l) Kp = 1/ P6Cl2 Kp = P4Cl3/ P6P4 Kp = P4Cl3/ (P6P4) (P6Cl2) Kp = 1/ (P6P4) (P6Cl2)
Answer: [tex]K_p=\frac{1}{[p_{Cl_2}]^6}[/tex]
Explanation:
Equilibrium constant is defined as the ratio of pressure of products to the pressuure of reactants each raised to the power their stoichiometric ratios. It is expressed as [tex]K_p[/tex]
For the given chemical reaction:
[tex]P_4(s)+6Cl_2(g)\rightarrow 4PCl_3(l)[/tex]
The expression for [tex]K_p[/tex] in terms of gaseous is written as:
[tex]K_p=\frac{1}{[p_{Cl_2}]^6}[/tex]
Determine the correct set-up below to determine what mass, in grams, of N2 is needed to completely react with 105 g F2 ?
Answer:
C: 1 mol F2/38 g F2
Explanation:
The reaction equation is;
N2 + 3F2 = 2NF3
Now, to know how many grams, of N2 is needed to completely react with 105 g F2 and since the molar mass of N2 is 28.02 g/mol, Molar mass of F2 is 38 g/mol, number of moles attached to N2 and F2 in the reaction are 1 and 3 moles respectively, then we will have;
105 g F2 × 1 mol F2/38 g F2 × 1 mol N2/3 mol F2 × 28.02 g N2/1 mol N2
Option C is Thus correct