PLEASE HELP MEEE THIS IS FOR a gradE AND IF I FAIL I FaIL THIS CLASs HELP ME

PLEASE HELP MEEE THIS IS FOR A GradE AND IF I FAIL I FaIL THIS CLASs HELP ME

Answers

Answer 1

Answer:

stream

Explanation:

because a stream goes into a lake

Answer 2

Answer:

D) Stream

Explanation:


Related Questions

word equation for Na2O+H2O → NaOH

Answers

Answer:

Sodium oxide + Water - - - > Sodium Hydroxide.

How many moles of carbon dioxide are produced when 5.12 moles of glucose undergoes a combustion reaction?

Answers

Answer: 30.72 moles of [tex]CO_2[/tex] will be produced from 5.12 moles of glucose.

Explanation:

The balanced chemical equation for combustion of glucose is:

[tex]C_6H_{12}O_6+6O_2\rightarrow 6CO_2+6H_2O[/tex]  

According to stoichiometry :

1 moles of glucose produce =  6 moles of [tex]CO_2[/tex]

Thus 5.12 moles of glucose produce =[tex]\frac{6}{1}\times 5.12=30.72moles[/tex]  of [tex]CO_2[/tex]

Thus 30.72 moles of [tex]CO_2[/tex] will be produced from 5.12 moles of glucose.

Please help me on this.

Answers

Answer is Scandium hope this helps!

If ONE mole of rocket fuel, ammonium perchlorate, NH4ClO4, is allowed to react with excess Al so that all of the NH4ClO4 is consumed, how many molecules of water will be produced? (All reactants & products are present in a 1:1 ratio.)

Answers

Answer:

9.03×10²³ molecules of H₂O

Explanation:

To solve this, we need to propose the reaction

NH₄ClO₄  →  ammonium perchlorate

Al → Aluminum

Those are the reactants; the reaction is:

6NH₄ClO₄  +  10Al →  5Al₂O₃ + 3N₂ + 6HCl + 9H₂O

Then, water is one of the products. If we see the reaction, is a redox type.

Ratio is 6:9. In conclussion:

6 moles of ammonium perchlorate can produce 9 moles of H₂O

Then 1 mol of salt, may produce (1 . 9)/6 = 1.5 moles of water

Let's count the molecules:

1.5 mol . 6.02×10²³ molecules /mol = 9.03×10²³ molecules of H₂O

what is a salient factor?

Answers

Answer:

technology is a silent factor

Explanation:

learned about it in computer class.

Which salt is the most common found in ocean water?

magnesium


calcium carbonate


potassium


sodium chloride

Answers

Answer:

Sodium chloride

Explanation:

There are several salts in seawater, but the most abundant is ordinary table salt or sodium chloride (NaCl). Sodium chloride, like other salts, dissolves in water into its ions, so this is really a question about which ions are present in the greatest concentration. Sodium chloride dissociates into Na+ and Cl- ions.

D sodium chloride sodium is salt

2. Hydrocarbons consist of carbon and hydrogen. 5.7 g of a hydrocarbon contains 4.8 g of carbon.
If the relative molecular mass of the hydrocarbon is 114, determine its molecular formula.​

Answers

Answer:

The molecular formula of the hydrocarbon compound is C₈H₁₈

Explanation:

The type of chemical substance in the question = Hydrocarbon

The mass of the hydrocarbon = 5.7 g

The mass of carbon in the given hydrocarbon (sample) = 4.8 g

The relative molecular mas of the hydrocarbon = 114 g

Therefore, the mass of hydrogen in the sample, H = 5.7 g - 4.8 g = 0.9 g

The ratio of the mass of carbon in the sample = 4.8/5.7

The ratio of the mass of hydrogen in the sample = 0.9/5.7

By the law of constant composition, we have;

The mass of carbon in a mole of the hydrocarbon = (4.8/5.7) × 114 g = 96 g

The molar mass of carbon, C = 12 g/mol

The number of moles of carbon in a mole of the hydrocarbon, 'n₁', is given as follows;

n₁ = 96 g/12 g = 8 moles

The mass of hydrogen in a mole of the hydrocarbon = (0.9/5.7) × 114 g = 18 g

The molar mass of hydrogen, H ≈ 1 g/mol

The number of moles of hydrogen in a mole of the hydrocarbon, 'n₂', is given as follows;

n₂ = 48 g/1 g = 18 moles

Therefore, in each each molecule of the compound, we have have 8 atoms of carbon, 'C', and 18 atoms of hydrogen, 'H'

Therefore, we get;

The molecular formula of the hydrocarbon compound is C₈H₁₈ which is the chemical formula for the hydrocarbon also known as octane

in____particles are in contact with each other.

Answers

Answer:liquid

Explanation:

The particles in a liquid usually are still touching but there are some spaces between them. The gas particles have big distances between them.

What is the correct formula for sodium carbonate?
a. Na(CO3)2
b. Na,(CO3)2
C. Na2CO3
Naz(CO)2
e. NaCO3
d.
a
a
b
b
ΟΟΟΟΟ
С
С
d
d
е
e

Answers

Answer:

na2 co3

Explanation:

sodium carbonate formula

Answer:

your answer is C.

Explanation:

this is what it would be like

O

|

|

Na+ C Na+

/ \

/ \

O- O-

How many significant digits are in this number?
742800
1.6
2.5
3.4
4.3

Answers

3. There are 4 significant digits. The significant digits are 7428.

100 grams of liquid iron is put in liquid water when is equilibrium reached

Answers

Answer:

when the water heats up i believe

Explanation:

b

A tank 20.0cm by 50.0cm by 30.0cm will hold how many liters of water?

Answers

Answer:

30,000 cm^3

Explanation:

volume for rectangular prism is v=l×w×h

plug in known values and solve.

v=(30.0cm)(20.0cm)(50.0cm)=30,000cm^3

How many grams of Sulfur are there in 2.05 x 10^25 molecules of Calcium Sulfate?

Answers

Answer:

1090 grams Sulfur (3 sig-figs)

Explanation:

Given 2.05 x 10²⁵ molecules CaSO₄ => 2.05 x 10²⁵ Sulfur atoms (subscript = 1 mole).

Converting 2.05 x 10²⁵ sulfur atoms to moles, divide by Avogadro's Number

(= 6.023 x 10²³ sulfur atoms / mole sulfur) => 2.05 x 10²⁵ sulfur atoms/6.023 x 10²³ sulfur atoms/mole sulfur atoms = 34.036 moles sulfur atoms.

Converting 34.036 moles sulfur to grams sulfur multiply by formula wt. of sulfur (=32g/mole S)

=> 34.036moles S x 32g/mole S = 1089.158 grams S ≅ 1090 g S (3 sig-figs)

PLS HELP URGENT
Electron dot diagrams
Use your periodic table to write the electron dot diagrams for the following atoms.
1. Calcium (Ca)
2. Polonium (Po)
3. Moscovium (Mc)
4. Boron (B)
5. Fluorine (F)

Answers

I believe it should look something like this :) hope it helps

Which condition would cause an increase in the salinity of ocean water?


thawing of glaciers


high rates of evaporation


cold weather


a river flowing into the sea

Answers

high rates of evaporation

Answer:

high rates of evaporation

which of the following has more particles
6.02x10(small numbers)23 molecules CO2
9 moles PF2
10 mole NaCI
18 g H2O

Answers

Answer:

A mole is Avogadro's number of items: 6.022 × 1023.

Explanation:

Which om sled below is amplo dl an abelis laeler in an evünment?
ban
B. droganty
C. ar temperatura
D. cation

Answers

Answer:

Explanation:

i got D

It’s D!
Hope this helped, please make me brainliest if it was useful! Have a good day/night

Can you bond 2 silicon atoms (Si) together to form a complete (real) molecule? Explain your reasoning

Answers

Answer: no

Explanation: because silicon cannot share over 3 bonds

NH₄NO₃ → N₂O + 2H₂O When 45.70 g of NH₄NO₃ decomposes, what mass of each product is formed?

Answers

Answer: 25.13 g of [tex]N_2O[/tex]  and 20.56 g of [tex]H_2O[/tex] will be produced from 45.70 g of [tex]NH_4NO_3[/tex]

Explanation:

To calculate the moles :

[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]    

[tex]\text{Moles of} NH_4NO_3=\frac{45.70g}{80.04g/mol}=0.571moles[/tex]

The balanced chemical equation is:

[tex]NH_4NO_3\rightarrow N_2O+2H_2O[/tex]  

According to stoichiometry :

1 mole of [tex]NH_4NO_3[/tex] produce = 1 mole of [tex]N_2O[/tex]

Thus 0.571 moles of [tex]NH_4NO_3[/tex] will require=[tex]\frac{1}{1}\times 0.571=0.571moles[/tex]  of [tex]N_2O[/tex]  

Mass of [tex]N_2O=moles\times {\text {Molar mass}}=0.571moles\times 44.01g/mol=25.13g[/tex]

1 mole of [tex]NH_4NO_3[/tex] produce = 2 moles of [tex]H_2O[/tex]

Thus 0.571 moles of [tex]NH_4NO_3[/tex] will require=[tex]\frac{2}{1}\times 0.571=1.142moles[/tex]  of [tex]H_2O[/tex]  

Mass of [tex]H_2O=moles\times {\text {Molar mass}}=1.142moles\times 18g/mol=20.56g[/tex]

Thus 25.13 g of [tex]N_2O[/tex]  and 20.56 g of [tex]H_2O[/tex] will be produced from 45.70 g of [tex]NH_4NO_3[/tex]

Is the reaction above a replacement reaction? Explain.

Answers

Replacement I don't see anything

i really need help, this is important to me, if not i get my harry styles tickets taken away and if that happens my life is over lol, i’m not saying it for sympathy i just REALLY need help

Answers

Explanation:

First Question

Group 18 elements. This is because the noble elements do not conduct electricity.

Second Question

Chewing in the mouth breaks food into small pieces

Third Question

How many atoms of each element are present in the molecule?

7 carbon atoms, 14 Hydrogen atoms and 1 oxygen atom

The Moon is always half lit and half dark.
True or
False
(i know this isn’t chemistry theres no science one.)

Answers

Answer:

True

Explanation:

Just like the Earth, half of the Moon is lit by the Sun while the other half is in darkness.

Answer:

Pretty sure it's true.

On Earth, we only see part of the moon that is illuminated or not, since it revolves around the Earth. However, the sun is stationary and doesn't move, meaning that one side of the moon is always lit by the sun as it revolves around the Earth.

Please help pretty please

Answers

Answer: Its is a field generated by any two objects touching each other.

                                                         OR

Answer: Its is a field generated by any object with any mass.

Explanation: I AM SOOOO SORRY if i get it wrong i pretty sure the first one is right i mean like My first ansewr i typed in......... :/ :/

The answer is B it has to be !

High-speed winds transfer more energy to the ocean’s surface, creating bigger waves.



Question 10 options:
True
False

Answers

Answer:

I think that would be true. The faster the wind, the longer it blows, or the farther it can blow uninterrupted, the bigger the waves. Therefore, a wave's size depends on wind speed, wind duration, and the area over which the wind is blowing

Answer: True.

Explanation: Yes, waves get energy from the wind through friction, so you see those waves get bigger each time. The longer the winds blows, the more friction, and energy it's getting, meaning better, and deadly waves. The wind can sometimes cause tsunamis if the its blowing too hard.

How many kilograms of water must be added to 6.07 grams of oxalic acid (H2C2O4) to make a 0.025 m solution?

Answers

This dilution problem uses the equation
M
a
V
a
=
M
b
V
b

M
a
= 6.77M - the initial molarity (concentration)
V
a
= 15.00 mL - the initial volume
M
b
= 1.50 M - the desired molarity (concentration)
V
b
= (15.00 + x mL) - the volume of the desired solution
(6.77 M) (15.00 mL) = (1.50 M)(15.00 mL + x )
101.55 M mL= 22.5 M mL + 1.50x M
101.55 M mL - 22.5 M mL = 1.50x M
79.05 M mL = 1.50 M
79.05 M mL / 1.50 M = x
52.7 mL = x
59.7 mL needs to be added to the original 15.00 mL solution in order to dilute it from 6.77 M to 1.50 M.
I hope this was helpful.

word equation for HgO → Hg +O2

Answers

I hope this one is helping you

what the steps of Cellular Respiration in the correct order?

Answers

Answer:

Cellular respiration uses energy in glucose to make ATP. Aerobic (''oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. In glycolysis, glucose is split into two molecules of pyruvate. This results in a net gain of two ATP molecules.

how many liters are in 4x10^23 atoms of CO

Answers

Answer:

3.346*10^25

Explanation:

Hope this helps

There right but make sure

When 10 grams of water completely evaporate into water vapor, the volume of the water vapor is greater than the volume of the original liquid water, but the mass remains the same. Why does the mass stay the same? Which answer is correct?

A
The temperature of the liquid water and water vapor is the same.

The temperature of the liquid water and water vapor is the same.

B
The density of the liquid water is the same as the density of the water vapor.

The density of the liquid water is the same as the density of the water vapor.

C
The number of atoms in the water vapor is equal to the number of atoms in the liquid water.

The number of atoms in the water vapor is equal to the number of atoms in the liquid water.

D
The distance between the water molecules is the same in the liquid and the vapor.

The distance between the water molecules is the same in the liquid and the vapor.

Answers

Answer: I think the answer is B or C, its kind of hard.

As the number of atoms in the water vapor is equal to the number of atoms in the liquid water. Therefore, the mass of the water remains the same.

What is evaporation?

Evaporation is a process that usually happens on the surface of water or liquid and it involves the conversion of the liquid phase into the gaseous phase. This process involves a change in the state of matter of water or liquids.

When the water is completely evaporated into water vapor the density of the water vapor is less than the density of the liquid water as the vapors occupy a large volume in comparison to liquid water.

But the number of atoms in the water vapor is the same as the number of atoms in the liquid water. The mass of the water is due to the mass of the atoms.

Therefore, the mass of the water remains the same during the phase transition from liquid water to water vapors. Therefore, option (C) is correct.

Learn more about evaporation, here:

https://brainly.com/question/5019199

#SPJ2

Which statement is not
true?
A. The troposphere is responsible for nearly
all of Earth’s weather.
B. The exosphere reaches deep into space
and is the least dense layer.
C. The thermosphere typically breaks up
meteors before they hit Earth.
D. The stratosphere allows commercial
airlines to fly with less turbulence because
of fewer convection currents.

Answers

answer: C
explanation: to make C correct, the sphere that breaks up meteors is the mesosphere.

The atmosphere of the earth is layered and each layer of the atmosphere has its own properties. The atmosphere of the earth is divided into four layers. The thermosphere typically breaks up meteors before they hit Earth is not correct. The correct option is C.

What is mesosphere?

The four important layers of atmosphere are troposphere, stratosphere, thermosphere and mesosphere. The layer of the atmosphere which is found above the stratosphere is defined as the mesosphere. It is the coldest layer of the atmosphere.

A meteor is known as a celestial object which is made up of rocks and minerals which enters the atmosphere of the earth and burns out completely before reaching the surface of the earth. It is known as the shooting star or falling star.

The temperature of mesosphere drops with altitude. By 80 km it reaches 100 degree celsius. The meteors burn up in this layer not in thermosphere.

Thus the correct option is C.

To know more about earth layers, visit;

https://brainly.com/question/13497783

#SPJ3

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PLEASE HELP WILL GIVE BRAINLIEST IF CORRECT review bernards research plan. then choose the correct way to complete the sentences. Bernard's a. summary b. presentation plan c. research question d. research text list needs to be improved. she can improve it by a. preparing a more effective presentationb. broadening his research question c. finding more legitimate research texts d. shortening his summary Find the solution of the system of equations.10x+6y= 1610x+5y= 50 Which of the following statements about learning is NOT true? *a. Learning is relatively permanentb. Reflex and voluntary behaviors can be learned.c. Learning involves experiences.d. Learning is another word for "maturation." Which point is on the graph of the equation y = -3x + 4?A. (-3, 4)B. (2, 2)C. (1, 1)D. (0, -4) what are the advantages of bikes Pls help me If your good at English ill mark brainliest What is the area of the trapezoid? PLS HELP ILL GIVE U BRAINLIST !!!! Route 66 connected what two cities? Help quick! Ill mark brainliest if correct :) will mark brainliest and give 5/5 Mel has a net annual income of $53 246 after 21% of her income is C withdrawn for tax purposes. What was her gross income? Nfhirbfhdggsbbdtgdbnehvs what is significance of crossing over during meiosis? The purpose of statistical inference is to provide information about the what's 5x-4y=-12 need help Please Help!!! I'll give brainliest what is the labotory nutritional assessment Help please this is the last day to turn it in 1. Which European country has the most free (from government control) economy? a. United Kingdom b. Germany c. Russia