Help please I really don’t understand

Help Please I Really Dont Understand

Answers

Answer 1
The blank is “g” (grams). When you are dividing, you can cancel out units. You have liters that cancel out with liters, and moles that cancel out with moles. Since your answer is in mL (milliliters), you need to cancel out grams.

Related Questions

Select the Coral Reef Tab. Make sure that you have clicked Return to original settings and Restart. Set the Ocean Temperature to 33 Degrees Celsius. Click Advance year 10 times. What changes do you notice?

Answers

Answer:

What changes do you notice? The white you see have undergone coral bleaching. At high temperatures, corals may lose their zooxanthellae, causing corals to lose their color and their main source of food. Once bleaching occurs, the coral colony usually dies.

Explanation:

study well

Arigato

Activist groups have helped increase awareness of the dangers of drinking and driving.
A. True
B. False

Answers

The Answer: answer (A.) True

a gas sample has a total pressure of 1.7atm. if the sample contains 2 gases and 1 gas has pressure of 0.7 atm, what is the pressure exerted by the other gas?

Answers

Answer:

1 atm

Explanation:

The other gas exerts the remaining pressure

1.7 - .7 = 1 atm

can you Explain the process of how clouds form?????

Answers

When there’s too much water vapor for the air to hold.

Answer: Clouds need two things to form: cool air and particles on which water vapor can condense. Clouds form as air cools. Cold air cannot hold as much water vapor, so the water vapor condenses. Water vapor condenses on small particles in the atmosphere, such as smoke, salt, and dust. As a result, clouds form.

Explanation: correct on edge

What happens when two substances of different temperatures come in contact with each other?

Answers

When two substances at different
temperatures come into contact, the
substance that is at higher temperature will transfer energy, in the form of heat, to the substance that is at lower temperature, until their temperatures get equal.

Answer:

The hotter one loses heat and the cooler one gains heat until they become equal in temperature.

If the pH of a solution is 8.45, what is the concentration of the OH-?

Answers

Answer:

How do you find the concentration of OH in a solution?

The hydroxide ion concentration can be found from the pOH by the reverse mathematical operation employed to find the pOH. [OH-] = 10-pOH or [OH-] = antilog ( - pOH) Page 2 Example: What is the hydroxide ion concentration in a solution that has a pOH of 5.70? On a calculator calculate 10-5.70, or "inverse" log (- 5.70).Explanation:

Write two equations for the neutralization of nitric acid, HNO, with magnesium hydroxide, Mg(OH). In the first equation, include the spectator ions. In the second, do not include the spectator ions.​

Answers

Answer:

where the formula

Explanation:

Answer:

Explanation:

Your answer should include the total ionic equation (for the equation with spectator ions) and net ionic equation (for equation that does not include spectator ion).

ignore the top equation labelled molecular equation

Disclaimer: the solid MgOH2 works only for Mg(OH)2 in solid phase.

If we assume the Mg(OH)2 is aqueous, then I have attached a second picture (replace Ca with Mg), the boxed equations are your answers.

A state government is trying to decide between using biomass or nuclear power to generate electricity. What advantage does biomass have over nuclear power?

0
A. Biomass does not produce pollution
0
B. Biomass releases less carbon dioxide.
0
C. Biomass is a nonrenewable source.
A
D. Biomass produces no radioactive waste

Answers

Answer:

D Biomass produces no radioactive waste

Explanation:

What is the specific heat of a substance if a mass of 10.0 kg increases in temperature from 10.0°c to 70.0°c when 2,520 j of heat is applied? use q equals m c subscript p delta t.. 0.00420 j/(gi°c) 0.00661 j/(gi°c) 238 j/(gi°c) 252 j/(gi°c)

Answers

Answer:

0.00420

Explanation:

The equation is Q=mc(T(final)-T(initial), where c is the specific heat, Q is heat supplied, m is mass, T(final) is final temperature and T(initial) is initial temperature (you'll see this written as delta T, which means change in temperature).

2520 = Q

m = 10.0kg; answer choices are in g, not kg, so multiply by 1000 to get m in g; m = 10000 g

Plug in the values you have and solve for c.

2520=(10000)(c)(70-10)

2520=600000c

c=0.0042 j/(gc)

Answer:

4.2 j/kg-C      =  .0042 j / (g-C)

Explanation:

Specific heat units are    j / kg-C

   2520 J  / [ (10 kg)(70-10 C)]   = 4.2   j / kg-C

A block has a length of 9.50mm, width 10.25mm, and height of 50.80 mm. If its mass is 38.7322 grams , what is the density in gram/cm³

Answers

Answer: 7.82999 g/cm³

Explanation:

1. Divide all of the lengths of the block by 10 to get them from mm to cm

2. Calculate volume of box

3. Calculate density using volume and mass

1) Students are interested in quickly completing their lab experiment before going to lunch. What are 4
ways to increase the reaction rate below?
Zn() + 2HCl(aq)
Hz(s) + ZnCl2(g) + heat

Answers

The reaction rate can be increased by increasing the temperature, increasing the concentration of reactants, using catalysts, or increasing the surface area of the reactants.

Factors affecting rates of reactions

The factors affecting the rate of reactions include:

Temperatureconcentration of reactantsAddition of catalystsSurface area of reactants

Each factor affects the rate of reaction as follows:

Increased temperature increases the rate of reactionIncreasing the concentration of reactants increases the rate of reactionAdding catalysts increases the rate of reactionsIncreasing the surface area of reactants increases the rate of reactions.

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What is the reciprocal of cell constant?​

Answers

Explanation:

resistivity is the reciprocal of cell constant

The volume of a gas filled balloon is 22L at 313K and 1.5 atm. What would the volume be at 273K and 1 atm?

Answers

Answer:

28L

Explanation:

V1 = 22L                             V2 = ?

T1 = 313K                            T2 = 273K

P1 = 1.5atm                          P2 = 1.0atm

Using the combined gas law equations;

[tex]\frac{P1V1}{T1}= \frac{P2V2}{T2}[/tex]

∴[tex]V2 = \frac{P1V1}{T1} * \frac{T2}{P2}[/tex]

         = [tex]\frac{1.5*22}{313} * (\frac{273}{1})[/tex]

   V2 = 28L

From the calculations and the statement of the general gas equation, the volume of the gas becomes 28.8 L

What are gas laws?

The gas laws are used to show the relationship between the variables in problems that has to do with gases.

In this case, we have to apply the general gas law as follows;

P1V1/T1 = P2V2/T2

P1V1T2 = P2V2T1

V2 =   * 22L *  1.5 atm * 273K/313K * 1 atm

V2 = 28.8 L

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Oil spills are a very serious form of pollution. They severely affect marine biodiversity and coastal ecosystems. The table shows methods that can be used to control oil spills.

A scientist wants to design a solution to control an oil spill. This solution should decrease the impact of the oil spill on the local biodiversity of the ecosystem. The solution should also be quick and effective but have minimal negative effects on the environment. Which of the following solutions would be best for the scientist to choose?

A. allowing natural processes to occur without any human intervention
B. using mechanical methods to collect the oil in one part of the ecosystem
C. using chemical methods to break the oil into smaller droplets
D. using bioremediation to speed up existing, natural oil degradation

Hellpppp!

Answers

Answer:

D. using bioremediation to speed up existing, natural oil degradation.

Explanation:

Got an A on this.

Explanation:

The correct answer is option D

Select the correct structure that
corresponds to the name.
2,2,3-trichloro-3-fluorohexane
A.
B.
CI
CI
CI
CI
F
חד
CI
C. both

Answers

Answer:

C

Explanation:its right

The correct structure that corresponds to the name 2,2,3-trichloro-3-fluorohexane is both. Thus option C is correct.

What is chemical structure?

Chemical structure is defined as the physical configuration of atoms within a molecule. The molecular geometry of the molecule is determined by its chemical structure. By illustrating how the atoms and chemical bonds are arranged in space within the molecule, chemical structure can be used to establish the molecular geometry of a product. Chemists can now see a crucial visual depiction of a chemical formula thanks to this.

2,2,3-trichloro-3-fluorohexane structure given is both are correct as one of the structure is trans form and the other is cis form of the structure. Option A is trans form while option B is cis form of structure.

Thus, the correct structure that corresponds to the name 2,2,3-trichloro-3-fluorohexane is both. Thus option C is correct.

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(d) Explain the trend in the boiling points in the table above.

Answers

Answer:

The BP increases in temperature as you move down the halogen group ( group 7)

Answer:

The trend of boiling points in the the table vary according to the size of the elements atom, if an element has a larger size it will need greater intermolecular forces and heat to break the strong bonds. Therefore Bromine has a larger size followed by chlorine and later fluorine, and this has shown in their boiling points

If you had 1 mol of Cr7(PO4)3 how many moles of Cr would there be?

Answers

There would be 7 moles of Cr

What is the IUPAC name of the compound N2O?

Answers

Answer:

Nitrous Oxide

Explanation:

What is a neutralization reaction?

Answers

The reaction of an acid and a base, which forms water and a salt

What other organisms feed on the same material?

Answers

Answer:

A heterotroph is an organism that eats other plants or animals for energy and nutrients. The term stems from the Greek words hetero for “other” and trophe for “nourishment.”

1. Calculate the molar mass of sucrose (C12 H11 O22)?

Answers

Answer:

=342g

Explanation:

atomic mass of C = 12g

atomic mass of H =  1g

atomic mass of O = 16g

Solution;

    C12 H22 O11

= 12 (12) + 22 (1) + 11(16)

= 144+ 22 + 176

= 342g

The provided map shows the location of an earthquake under the ocean.

The data on the map would best support a prediction of which of the following events?

O A tsunami in Sri Lanka
O An earthquake in South Africa
O A hurricane in Somalia
O Flash floods in Madagascar

Answers

Answer:

Option 1

Explanation:

An underwater earthquake will most likely cause a tsunami. Sri Lanka lies very close to the source of the earthquake, hence the answer is :

A tsunami in Sri Lanka

A.
Select the correct structure that
corresponds to the name.
heptane
B.
CH3(CH2)4CH3

Answers

Answer:

Only A., the stick structure with no branches and five vertices between the two endpoints.

Explanation:

An alkane is a saturated hydrocarbon compound with no branches- just a series of carbon atoms connected with [tex]{\rm C}-{\rm C}[/tex] single bonds. Heptane is the name for an alkane with [tex]7[/tex] carbon atoms (the prefix "[tex]\verb!hept-![/tex]" means "seven".)

Notice that there are only [tex]6[/tex] carbon atoms in the alkane with the condensed structure formula [tex]{\rm CH_{3}}({\rm CH_{2})_{4}{\rm CH_{3}}[/tex]. The name for that structure would be hexane, not heptane.

In general, the condensed structure formula of an alkane with [tex]n[/tex] carbon atoms ([tex]n > 2[/tex]) is [tex]{\rm CH_{3}}({\rm CH_{2}})_{n-2} {\rm CH_{3}}[/tex]. The correct condensed structure formula for heptane ([tex]n = 7[/tex]) would be [tex]{\rm CH_{3}}({\rm CH_{2}})_{5} {\rm CH_{3}}[/tex].

The structure in choice A is represented as a line-angle formula. As long as no letter is present in the formula, each vertex in the line-angle formula (including the endpoints) represents a carbon atom. Hence, the line-angle formula in choice A would represent a hydrocarbon with [tex]7[/tex] carbon atoms.

A single line denotes a single bond between atoms. All [tex]7[/tex] carbon atoms in this structure are thus joined in a line with [tex]{\rm C}-{\rm C}[/tex] single bonds. Hence, this structure denotes an alkane with [tex]7[/tex] carbon atoms- heptane.


In the wild, female and juvenile African elephants typically live in herds that vary in size, depending on the
environment. Juvenile African elephants are subject to predation by animals such as lions and leopards. When a
juvenile is threatened by a predator the members of the herd may form a protective circle around that individual
and the other juveniles.
Explain how herd behavior is beneficial to the survival of individual elephants and also beneficial to the survival of
the species. Enter your answer in the box provided.

Answers

Herd behavior in elephants ensures that individuals are protected and the species is perpetuated.

What is her behavior?

It is a behavior that is characteristic of animals that form herds.

Herds generally refer to groups of animals that live or move together or both.

By protecting individual elephants that are weak or young from being preyed upon by lions and leopards, more members of the population survive.

When more members of the population survive, the species is perpetuated and the likelihood of going into extinction reduces.

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Which of the following do sound waves generally travel most
quickly through?

Answers

Answer:

Sound waves travel faster through solids, because they can better transmit the soundwaves to your eardrum faster since they are closer together than air.

Answer:

Sound waves generally travel most quickly through gases.. Sounds can travel through air and water but not through solids.  Sound waves travel hope this helps!

13) A gas has an initial state of 500 K, 6.5 atm, and occupies 8.0 L. What will the final volume be if the pressure is kept constant and the temperature is decreased to 150 K? ​

Answers

6 the the turn the hfhdkacg

if 14.0 g of sodium sulfide are reacting how many molecules of sodium chloride will be produced

Answers

Explanation:

If 14.0 g of sodium sulfide are reacting, how many molecules of sodium chloride will be produced?

3 Na₂S + 2 AICI36 NaCl + Al2S3

1.08 x 10^23

2.16 x 10^23

2.16 x 10^-23

5.97 x 10^-25

What environment will produce the largest crystal sizes?

Construct a short Essay (Make sure you include information about Temp, Pressure, amount of dissolved solids, & cooling time)

Is there support for your Claim?

Answers

Answer:

one factor is the speed at which crystals are formed

explanation:

crystals that are formed near or on the surface tend to crystalize faster and therefore are usually smaller crystals deeper in the crust tend to crystalize slower and therefore are larger

How many molecules ?

Answers

Answer:

42 millions of single cells

Define reaction rate.
a. An unstable arrangement of atoms that forms momentarily at the peak of the activation-energy
barrier
b. The minimum energy that colliding particles must have in order to react
c. A measure of speed of any change that occurs within an interval of time
d. Atoms, ions, and molecules can react to form products when they collide with one another,
provided that the colliding particles have enough kinetic energy.

Answers

Answer:

B

Explanation:

Answer:

B

Explanation:

Reaction rate can be defined as :

the minimum energy that colliding particles must have in order to react

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