Helpppp i need da right answer Don’t Guess

Answer:

electric is your answer :)

Explanation:

Edge STEM instruction/assignment perhaps???

Answer:

A. C (alternate current)

Answer:

1.32m es la concentración de NaCl en el agua de mar

Explanation:

La disminución de presión de vapor sigue la ecuación:

P = XP⁰

Donde P es la presión de la solución = 23.99mmHg

X es la fracción molar del solvente

P⁰ la presión del agua pura = 24.56mmhg

23.99mmHg = X*24.56mmhg

0.97679 = X

La fracción molar del solvente se define como:

Moles Solvente / (Moles soluto + Moles solvente)

Asumiendo que las moles de soluto = NaCl = 1:

0.97679 = Moles solvente / (1 + Moles solvente)

0.97679 + 0.97679 Moles solvente = Moles solvente

0.97679 = 0.02321 moles solvente

42 moles solvente = 42 moles de agua.

masa de agua:

42 moles * (18.01g / mol) =758g de agua = 0.758kg

Molalidad, m, son las moles de soluto (1mol NaCl) por kg de solvente (0.758kg):

1mol / 0.758kg =

Answer:

Cellular respiration uses oxygen in addition to glucose. It releases carbon dioxide and water as waste products. Cellular respiration actually "burns" glucose for energy.

Explanation:

Answer:

Sn --> Sn2+ + 2e-

Explanation:

At anode oxidation reaction occur. In this reaction Sn is getting oxidized to state +2 while Ag is reduced from +1 to 0.

Hence, reaction at anode will be  

Sn (s) --> Sn2+ (aq) + 2e-

At cathode the following reaction occur

2 Ag⁺ + 2e- ---> 2Ag (s)

Answer:

The scientific method attempts to minimize the influence of bias or prejudice in the experimenter. Even the best-intentioned scientists can't escape bias. ... That's the job of the scientific method. It provides an objective, standardized approach to conducting experiments and, in doing so, improves their results.

Answer:

to get used to them

Explanation:

you have to practice them so that they can get into your head

Answer: Moles are found in a 350.mL solution of 13.5M [tex]HNO_{3}[/tex] are 4.725 mol.

Explanation:

Given: Volume = 350 mL (1 mL = 0.001 L) = 0.350 L

Molarity = 13.5 M

Molarity is the number of moles of a substance present in a liter of solution.

Therefore, moles of [tex]HNO_{3}[/tex] present in the given solution are calculated as follows.

[tex]Molarity = \frac{moles}{Volume (in L)}\\13.5 M = \frac{moles}{0.350 L}\\moles = 4.725 mol[/tex]

Thus, we can conclude that moles found in a 350.mL solution of 13.5M [tex]HNO_{3}[/tex] are 4.725 mol.

Answer:

molecules gain energ and start to move quickly

Water has highest density at 4∘C. This changes its properties from other simple fluids. When water is heated from 0∘C to 4∘C, the volume of liquid decreases. Thus for this transition, P ΔV is negative.

Answer:

The molecule is a branched hydrocarbon.

Explanation:

The methyl prefix indicate the presence of a single carbon or the molecule is a branched hydrocarbon.

The Prefix is used to show or indicate the substituents, side chains of the molecule and prefix attached to the beginning of a word and the molecules name is based on the number of carbon atoms in IUPAC nomenclature.  The International Union of Pure and Applied Chemistry (IUPAC).

For Example:

Number of carbon Atoms          Root Name                  Prefix (side group)

1                                                    meth-                             methyl-

2                                                   eth-                                ethyl-

3                                                   prop-                              propyl-

4                                                   but-                                 butyl-

5                                                   pent-                               pentyl-

6                                                   hex-                                 hexyl-

7                                                   hept-                                heptyl-

Thus, we can say that prefix tells us the number of carbon atoms in each molecule. A presence of single carbon is indicated by the methyl prefix or we can also say that the molecule is branched hydrocarbon.

Learn more about the IUPAC nomenclature here: https://brainly.com/question/16903179

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Answer:

Some chemical reactions will not generate products is because the molecules in a chemical reaction aren´t able to line up with each other correctly.

Explanation:

Answer:

The reason that a chemical reaction doesn't happen is that the molecules weren't able to line up with each other correctly. It's the same as you extending your right hand and your friend extending his right hand at the same time.

Explanation:

Answer:

CuCl2 + 2NaNO3 → Cu(NO3)2 + 2NaCl

Explanation:

m(NaCl) =m(CuCI2) × 2Mr(NaCl) / Mr(CuCI2)

= 15 × 2 × (94/135)

=20.89 g

Explanation:

option d

hope helps u

have a nice day

Sulphur Trioxide = So3

Sodium Hydroxide = NaoH

Answer:

[tex]\huge\boxed{Sulfur \ Trioxide\hookleftarrow}[/tex]

[tex]\huge\boxed{Sodium \ Hydroxide\hookleftarrow}[/tex]

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

# ꧁❣ RainbowSalt2²2² ࿐

Answer:

An atom is a chemical substance which exist freely in nature without any reaction .

Answer:

Explanation:

Heterozygous cross with a hom.ozygous recessive yields the following results

50% rr (hom.ogyzous recessive)

50% Rr (heterozygous dominant)

A heterozygous cross with a homozygous recessive gives the following results: 50% rr (homozygous recessive) and 50% Rr (heterozygous dominant).

Crossing over is a type of cellular process which occurs during the process of meiosis when chromosomes of the same type line up. When these two chromosomes – one from the mother and one from the father – line up, parts of the chromosome can be switched. Two chromosomes contain the same genes, but the genes may have different forms.

The organisms in this initial hybridization are called the parental or P generation. The progeny of the Rr x rr cross are called F1 generation which will have a heterozygous cross with the homozygous recessive giving the following results: 50% Rr (homozygous recessive) and 50% rr (heterozygous dominant)

A cross between two of the offspring in F1 generation would produce a new set of progeny called second filial generation (or F2 generation).

Thus, a heterozygous cross with a homozygous recessive gives the following results: 50% rr (homozygous recessive) and 50% Rr (heterozygous dominant).

Learn more about Parental crossing, here:

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Hydrocarbon combustion refers to the chemical reaction where a hydrocarbon reacts with oxygen to create carbon dioxide, water, and heat.

Answer:

The iupac name of CH3-O-CH2-CH2-CH3 is Methoxybutane.

Answer:

Double bonds. It says I have to write more words lol but yeah it's double bonds

Answer:

Q = 2.60 • [tex]10^{3}[/tex] J

Explanation:

Our specific heat capacity equation is:

Q = mC∆T

Q is the energy in joules.

m is the mass of the substance.

∆T is the temperature chance.

Let's plug in what we know.

Q = 76.0(2.22)(15.4)

Multiply.

Q = 2598.288

We want three significant figures.

Q = 2.60 • [tex]10^{3}[/tex]

or

Q = 2590 J

Hope this helps!

Answer:6,985.008

Explanation:

so the hear formula is mass times specific heat times change in temperature (kelvin) so what i did was got the change in temperature (41.4 K) and multiplied that times 2.22 J/(g•K)and multiplied that by 76 grams of Octane to get the Answer (not in scientific notation)

Answer:

The common product is H2CO3

Explanation:

Complete question

Which products are the same in both the copper carbonate and the calcium carbonate if they react with hydrochloric acid in different reactions?

Solution

Reaction of  copper carbonate and hydrochloric acid  is as follows

CuCO3 + 2 HCl --> CuCl2 + H2CO3

Reaction of  calcium carbonate and hydrochloric acid  is as follows

CaCO3 + 2HCl --> CaCl2 + H2CO3

The common product is H2CO3

Answer:

the answer is B

Explanation:

the ice puts 8ts cold into the water taking it away from the ice

Answer:    

Explanation:      

The nucleus is an organelle found in eukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material. This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.

Answer:

you're going to start by balancing the carbon first. To do this, you want to times the carbon on the right by 4 so we put a 4 in front of the CO2.C4H8 + O2 --> 4CO2 + H2OWe're now going to try and balance the hydrogen by putting a 4 in front of the H2O.C4H8 + O2 --> 4CO2 +4H2OThen we're going to count the oxygens on both side and balance them by putting a 6 in front of the O2.C4H8 + 6O2 --> 4CO2 + 4H2O

Answer:

hope this helps :) please correct me if I'm wrong.

C4H8 + 6O2 --> 4CO2 + 4H2O.

Explanation:

C4H8 + O2 --> CO2 + H2O

C=4 C=1

H=8 H=1

O=2 ---> O=3

C4H8 + 6O2 --> 4CO2 + 4H2O

C=4 C=4

H=8 H=8

O=12 ---> O=12

Answer:

it's eveporates remains unused products

[tex]\huge{ \mathcal{  \underline{ Answer }\:  \:  ✓ }}[/tex]

Catalyst are substance that are added to a reaction in order to speed of the reaction.

And they remain the same before and after the reaction, hence the correct option is :

B. It remains unused.

__________________________

[tex]\mathrm{ ☠ \: TeeNForeveR \: ☠}[/tex]

Answer:

Organisms with a recessive trait can have a dominant allele for the trait.

Explanation:

hope this helps

Answer

D

Organisms can be bred for specific traits based on a pattern of inheritance.

Answer:

Chemical Potential Ener

Answer:

b the same like this page provide the best way to go with it the hell are nutrients to

Explanation:

bush administration of jute bags and purses and then a good day to day basis and then we will have the same IP Android app and wanted to let you know that I am a

Answer:

The carbons on either side of the double bond are pointed in the same direction