I need help with this question!!

Answer:

the answer is gravity

hope this helps

Answer:

0.18 mol C₃H₈

Explanation:

to find the mole you have to convert the 8.0grams into moles.

8.0g C₃H₈        1 mol C₃H₈

       1               44.0g C₃H₈

*Pretend that those are a table*

I got 44.0g because Carbon is 12.0g you multiply that 3 times because it has a subscript of 3 and do the same for Hydrogen (1.0 x 8) then add those which would be 44.0g.

1 mol of C₃H₈ = 44.0g C₃H₈

now just mulitply and divide them.

8.0g x 1 = 8.0

1 x 44.0g = 44.0

8.0/44.0 = 0.18 mol C₃H₈

Answer:

B) On genes within chromosomes

Explanation:

Answer:

B) On genes within chromosomes

Answer:

2Mg + 4HCl (aq) --> 2 MgCl2 (aq) + H2

Explanation:

balanced...

Answer:

testosterone is released from their testes!

Answer:

i cant see the image im good at chem if you can write it down in the comments ill answer it

Explanation:

Answer:

1.2×1023 molecules.

hope it helps

Answer:

If the mass of carbon in the signature is 10-12g, calculate. the number of carbon atoms in the signature. the answer is 5.01 x 10^10 atom.

Explanation:

wlcm

please mark me as brainliest

Answer:

0.895 mL

Explanation:

Using the formula;

C1V1 = C2V2

Where;

C1 = initial concentration (M)

C2 = final concentration (M)

V1 = initial volume (mL)

V2 = final volume (mL)

According to the information provided in this question;

C1 = 15.54M

V1 = ?

C2 = 2.28M

V2 = 6.1 mL

Using C1V1 = C2V2

V1 = C2V2 ÷ C1

V1 = (2.28 × 6.1) ÷ 15.54

V1 = 13.908 ÷ 15.54

V1 = 0.895 mL

Answer:

b

Explanation:

Answer:

i think the second answer " fish migration might be prevented" might possibly be your answer

To solve such this we must know the concept of double displacement reaction. Therefore, copper (Cu) and silver (Ag) would not liberate hydrogen from dilute tetraoxosulphate(vi) acid.

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.

Copper (Cu) and silver (Ag) would not liberate hydrogen because they are less reactive than hydrogen since their standard reduction potential is higher.

Therefore, copper (Cu) and silver (Ag) would not liberate hydrogen from

dilute tetraoxosulphate(vi) acid.

Learn more about the chemical reactions, here:

https://brainly.com/question/3461108

#SPJ2

Answer:

Phrase

Explanation:

Phrases don't have both, but clauses do.

Answer: substances formed as a result of chemical reaction are called PRODUCTS.

Explanation:

A chemical reaction can be defined as a reaction in which substances known as the REACTANTS makes or breaks it's bonds to form another substance usually referred to as the PRODUCT. Usually, a new substance which is referred to as the product that is formed is different from the original reacting substances. Some of the characteristics of a chemical reaction include:

--> colour change,

--> heat production,

--> precipitation

The rate at which these chemical reaction occurs depends on some factors such as pressure, temperature and concentration of the reactants

There are different examples of chemical reaction which includes:

--> Rusting of iron: this occurs when iron and oxygen combines to form a mixture of iron oxides, which is the product of the chemical reaction.

--> The burning of magnesium in air: in this Chemical reaction, magnesium reacts with oxygen to form magnesium oxide which is the product of the chemical reaction.

2Mg(s) + O2(g) △→ 2MgO(s)

--> Production of table salt: this is formed from the reaction of sodium and chloride to give sodium chloride as the product of the chemical reaction.

Therefore in a chemical reaction, no atom is destroyed or created but a new PRODUCT is formed from reactants.

Answer:

The answer is 0.30 m/s

Explanation:

i search it on

Answer:

A

Explanation:

hail will fall push it back up making it bigger comes back down

Answer:

Freezing of water

Explanation:

When water becomes a solid it releases heat into its surroundings (warming it up).

Answer:

43.1atm is the pressure using gas law and 27.2atm using Van der Waals Law.

Explanation:

Ideal gas law is:

PV = nRT

Where P is pressure in atm

V is volume = 4.00L

n are moles of the gas (For chlorine Molar Mass: 70.90g/mol):

500g * (1mol / 70.90g) = 7.052 moles

R is gas constant = 0.082atmL/molK

T is absolute temperature = 25°C + 273 = 298K

To solve the pressure, P:

P = nRT/V

P = 7.052mol*0.082atmL/molK*298K / 4.00L

P = 43.1atm is the pressure using gas law.

Van der Waals equation is:

[tex]P + a(\frac{n}{V})^2 * (V-nb) = nRT[/tex]

Where a is 6.58L²atm*mol⁻²

b = 0.056Lmol⁻²

Solving for pressure:

[tex]P + a(\frac{n}{V})^2 = \frac{nRT}{(V-nb)}[/tex]

[tex]P = \frac{nRT}{(V-nb)}-a(\frac{n}{V})^2[/tex]

[tex]P = \frac{7.052mol*0.082atmL/molK*298K}{(4.00L-7.052mol*0.056L*mol)}-6.58L^2mol^{-2}(\frac{7.052mol}{4.00L})^2[/tex]

P = 172.323 / 3.6051 - 20.4866

P = 27.2atm using Van der Waals Law

Answer:

https://socratic.org/questions/how-many-grams-are-in-1-25-x-10-22-atoms-of-oxygen#403337

Explanation:

Answer:

sorry I didn't know this one i did all the work and stuff and still couldn't get it sorry

Explanation:

A solution that contains more than the maximum amount of solute that is capable of being dissolved at a given temperature.

I hope it helps

Answer:

A supersaturated solution is said to contain ​more solute than it can dissolve at that given temperature.

The question is: 10 g of carbonic acid H2CO3 are dissolved in 150 g of water. Determine the% m / m concentration of that solution?

Answer: The% m / m concentration of that solution is 6.66%.

Explanation:

Given: Mass of solute = 10 g

Mass of solvent = 150 g

Formula used to calculate the %m/m is as follows.

[tex]Percent (m/m) = \frac{mass of solute}{mass of solvent} \times 100[/tex]

Substitute the values into above formula as follows.

[tex]Percent (m/m) = \frac{mass of solute}{mass of solvent} \times 100\\= \frac{10 g}{150 g} \times 100\\= 6.66%[/tex]

Thus, we can conclude that the% m / m concentration of that solution is 6.66%.

Answer:

b option to is correct and answer bro

Answer:

[tex]M_{base}=0.488M[/tex]

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to solve this problem by firstly writing the chemical reaction between hydrochloric acid and barium hydroxide:

[tex]2HCl+Ba(OH)_2\rightarrow BaCl_2+2H2_O[/tex]

It means there is 2:1 mole ratio of the acid to base, and we are able to write the following mole ratio, then written in terms of volumes and concentrations:

[tex]n_{acid}=2n_{base}[/tex]

Thus, we obtain the following:

[tex]M_{acid}V_{acid}=2M_{base}V_{base}[/tex]

Then, we solve for the concentration of the base and consequently plug in the given data to obtain:

[tex]M_{base}=\frac{M_{acid}V_{acid}}{2V_{base}} \\\\M_{base}=\frac{0.863M*37.2mL}{2*32.9mL}\\\\M_{base}=0.488M[/tex]

Regards!

Answer:

1392. g CO2

Explanation: