Click here to access the interactive simulation. You will practice balancing chemical equations by playing an interactive game. After accessing the website, select the game box and start with level 1, followed by levels 2 and 3. The goal of these games is to have the same number of atoms on each side of the equation.

In level 1, you balanced the equation N2 + H2 →

NH3. What number did you place in front of ammonia (NH3)?

In level 2, you balanced the equation C + H2O → CH4 +

CO2. What number did you place in front of carbon dioxide (CO2)?

In level 3, you balanced the equation NH3 + O2 → NO2 +
H2O. What number did you place in front of water?

Answers

Answer 1

Answer:

In level 1, you balanced the equation N2 + H2 →  

✔ 2

NH3. What number did you place in front of ammonia (NH3)?

In level 2, you balanced the equation C + H2O → CH4 +  

✔ 1

CO2. What number did you place in front of carbon dioxide (CO2)?

In level 3, you balanced the equation NH3 + O2 → NO2 +  

✔ 6

H2O. What number did you place in front of water?

Explanation:

Edge:2020

Answer 2

Answer: 2,1,&6

Explanation: the answer


Related Questions

Identify the substance oxidized and the substance reduced in the following chemical equation:zn(s)+AgNO3(aq)=Zn(No3)2+2Ag(a)​

Answers

Answer:

Explanation:

zn is oxidized because its oxidation number is increased from zero in zn to +2 in zn(No3)2

Ag is reduced because its oxidation number is reduced from +1 in AgNo3 to zero in Ag

oxidation number of zn(s) is zero while the oxidation number of zn in zn(No3)2  is

zn(No3)2=x+(5*2)+(-2*6)=x+10-12=x-2

x-2+2=2

x=2

the oxidation of Ag in AgNo3

AgNo3=x+5+(3*-2)=x+5-6=x-1

x-1+1=1

x=1 while the oxidation number of Ag is zero

so zinc is oxidized and silver (Ag) is reduced

Describe how molecular motion and distance between molecules change as ice is heated to become a liquid and then a gas

Answers

Answer:

Described in the explanation section

Explanation:

Ice is the solid phase of water and this phase, the water molecules usually have very little energy and therefore can't detach from each other. This is because the water molecules are closely packed together in a regular arrangement normally called lattice.

Now, when the ice is heated to become a liquid, the energy of the water molecules increases and thus some of them will have enough energy to overcome the intermolecular forces that had been keeping them closely packed in the ice phase. This will then make the water molecules to move further apart thereby forming liquid water.

Now, when the molecules are heated further, the liquid water will now turn into water vapor, which is the gas phase of water. The molecules in this gas phase will have more energy than in the liquid phase because the average distances between each of them will be much larger than the size of the molecules themselves.

What is the mass of a
12.31 cm3 piece of
copper having a density of
8.96 g/cm3

Answers

Answer:

110.30 grams

You have to multiply by 8.96.

12.31 x 8.96 = 110.30 grams.

Therefore, that is your answer.

(Sorry I had to answer twice it was because of LukeG1).

a liquid that occupies the volume of 3.23 L has a mass of 3.188 kg what is the density of this liquid in kilograms to liters

Answers

Answer:

0.97 kg/l

Explanation:

Which of these is an extensive ?
A- density
B- melting point
C- temp.
D- volume

Answers

It would be Melting point C.

thomas atoms theroy​

Answers

Answer:

Do you want to us to explain what it is

Explanation:

Answer:

APEX

Explanation:

The electron

What is the density of a purple gas that has a mass of 10 g and a volume of 20 mL? Show your work!

Answers

Answer: 0.5g/ml

Explanation:

The density of a substance is given by the following formular; Mass / Volume,

Where mass = 10g

           volume = 20ml

Density = 10g/ 20ml = 0.5g/ml

An Olympic swimmer can swim a distance of 360m in 8.5 minutes. What is her speed?

Answers

speed= distance / time
s= 360m / 510 s
s= 0,7 m/s

Answer:

42.3529412 m/min or 0.705882353 m/s

Explanation:

We can calculate speed using the following formula.

[tex]s=\frac{d}{t}[/tex]

where [tex]d[/tex] is distance and [tex]t[/tex] is time.

The Olympic swimmer can swim 360 meters in 8.5 minutes. Therefore,

[tex]d= 360 \ m \\t= 8.5 \ min[/tex]

Substitute the values into the formula.

[tex]s=\frac{360 \ m}{ 8.5 \ min}[/tex]

Divide.

[tex]s= 42.3529412 \ m / min[/tex]

Her speed is 42.3529412 meters per minute.

If we want to find her speed in meters per second, convert the minutes to second.

1 minute is equal to 60 seconds, so we can multiply 8.5 by 60.

[tex]8.5 *60=510[/tex]

The swimmer can swim 360 meters in 510 seconds.

[tex]s=\frac{d}{t}[/tex]

[tex]d= 360 \ m \\t= 510 \ s[/tex]

[tex]s=\frac{360 \ m}{510 \ s}[/tex]

[tex]s=0.705882353 \ m/s[/tex]

Her speed is also 0.705882353 meters per second.

i need help with this pls

Answers

Answer:

C Is The Correct Answer Because The Deeper The Rock Is The Older It Is So The Top Is The Youngest And The Bottem Is The Oldest

What are the three types of symbiosis?

Answers

Answer:

commensalim, mutualism, parasitism

Commensalism, mutualism, parasitism

find the density . mass is 12.52 g and the volume is 20.98 mL​

Answers

Answer:

0.5968 g/mL

Explanation:

To calculate density:

density

[tex] \frac{mass}{volume} [/tex]

Therefore,12.52g divide by 20.98mL is 0.5968g/mL

In order to find density you divide by mass and volume. Giving you a 0.596

Some chemical reactants are listed in the table below. Complete the table by filling in the oxidation state of the highlighted atom.

Answers

Answer:

1. Cu = +2

2. O = – 2

3. C = +2

4. N = 0

Explanation:

Note:

A. The oxidation state of oxygen is always – 2 except in peroxides where it is – 1.

B. The oxidation state of Hydrogen is always +1 except in metallic hydrides where it is – 1.

Now let us solve the question given above.

1. CuO = 0 (ground state)

Cu + O = 0

O = – 2

Cu + (– 2) = 0

Cu – 2 = 0

Collect like terms

Cu = 0 + 2

Cu = +2

2. H2O = 0 (ground state)

2H + O = 0

H = +1

2(1) + O = 0

2 + O = 0

Collect like terms

O = 0 – 2

O = – 2

3. CO = 0 (ground state)

C + O = 0

O = – 2

C + (– 2) = 0

C – 2 = 0

Collect like terms

C = 0 + 2

C = +2

4. N2 = 0 (ground state)

2N = 0

Divide both side by 2

N = 0/2

N = 0

Approximately how tall is Able Hill? Don't forget your unit

Answers

Answer:

about 42m 3

copied from google

hope that helps

approximately 42m 3 was Able Hill

A loaf of bread has a mass of 0.5kg and a volume of 2500cm³. what is the density of the bread

Answers

Density is mass divided by volume.

Since mas is 0.5kg we need to convert it to grams. Using conversion factors we get the mass of the bread to be 500g.

So densty=500/2500

density =1/5 grams per cubic centimeter

:)

What are some ways each person could reduce air pollution and energy consumption? a. adjust the temperature settings - hotter in winter and cooler in summer b. adjust the temperature settings - cooler in winter and hotter in summer c. cut down trees near the house d. replace plumbing fixtures that leak Please select the best answer from the choices provided A B C D

Answers

Answer:

b.

adjust the temperature settings - cooler in winter and hotter in summer

Explanation: I took the quiz

Answer:

B. adjust the temperature settings- cooler in winter and hotter in summer

Explanation:

edge 2020

help please!! will reward brainliest ​

Answers

Answer:

C

Explanation:

just did it and got good luck

Based on what you know about conductivity and the periodic table, rank the elements in order from most conductive to least conductive.

Answers

Answer: chromium, germanium, iodine

Explanation:

Answer:

Chromium, Germanium, Iodine

Explanation:

edge

WILL MARK BRAINLIEST

8. When the numbers 552. and 38.14 are added the result is:
a) 591
b) 590
c) 5.90 x 10^2
d) 589

Answers

Answer:

b) 590

Explanation:

3. A gold ring has a mass of 67.0 grams. When
placed in a graduated cylinder containing 10 ml of
water, the water rises to 13.47 ml. Calculate the
density of the ring.
I

Answers

Answer:

The answer is

19.3 g/mL

Explanation:

The density of a substance can be found by using the formula

[tex]Density = \frac{mass}{volume} [/tex]

From the question

mass = 67 g

Volume of ring = new volume of water - original volume of water

Volume = 13.47 - 10 = 3.47 mL

Substitute the values into the above formula and solve

That's

[tex]Density = \frac{67}{3.47} \\ = 19.308357[/tex]

We have the final answer as

19.3 g/mL

Hope this helps you

1.) What are the chemical properties of matter?

Answers

Answer:

Chemical properties are properties that can be measured or observed only when matter undergoes a change to become an entirely different kind of matter. They include reactivity, flammability, and the ability to rust. Reactivity is the ability of matter to react chemically with other substances.

Explanation:

Your cute btw :)

What are some tips *from a girl* to get a girl to like you without making it obvious

Answers

just be nice, and compliment her
Ok to me this something you got to figure out on your own because not every girl is the same, take me for example i don’t care for anybody like or who likes me being nice i like them aggressive and honest but with like 10% of nice but not all time so i hope i could help you!

What is coronavirus
Why do you need to be cautious

Answers

Answer:

IT IS CORONAAAAAAAAAAAAAAAAAAAAA

Answer:

coronavirus is a lung disease, it makes it so that you have a fever, cough, trouble breathing, mild headaches, and sometimes even nausea. you should be cautious because if your at high risk your gonna have trouble recovering from it. wearing a mask could help protect others from the spread of coronavirus. others wearing a mask prevents you from the spread of coronavirus. if you do catch it, make sure you see your doctor and isolate yourself for two weeks to a month and try not to go out as much.

Which type of forest consists of cone-
bearing evergreen trees that often
grow very tall, but provide little
canopy?
A. Coniferous Forest
B. Deciduous Forest
C. Tropical Rainforest
D. Grassland

Answers

Answer: A, Coniferous Forest.

How can a substance change from one state of matter to another?

Answers

Answer:

heated or cooled

Explanation:

Matter can change from one state to another if heated or cooled.

Answer:

Many things can change a substance from one state to another. These things include pressure, temperature, frequency, and many more.

which of the following substances does not conduct electricity
a)brass b)copper c)carbone(graphite) d)carbon(diamond)

Answers

Answer:

diamonds

Explanation:

Diamond does not conduct electricity.  

• A form of carbon in which each of the atom of carbon is joined to four other atoms of carbon, giving rise to a giant covalent composition is a diamond.  

• Due to this, diamond is very robust and exhibits high melting point. Thus, is used to cut tools.  

Diamond does not conduct electricity, due to the absence of delocalized electrons in the structure.  

Thus, diamond does not conduct electricity. Option d is correct.

To know more about:

https://brainly.com/question/2042843

In the reaction BaCl2 (aq) + Na2SO4 (aq) → BaSO4 (s) + 2NaCl (aq), what phases are the reactants in before the reaction?
Question 4 options:

A)

BaCl2 is a liquid, and Na2SO4 is a gas.

B)

BaCl2 is a solid, and Na2SO4 is in aqueous solution.

C)

Both reactants are gases.

D)

Both reactants are in aqueous solution.

Answers

D.

both are stated to be in aqueous solutions by the (aq)

Answer:

D. both are stated to be in aqueous solutions by the (aq)

Explanation:

2. Which of the following statements correctly explains the difference between a theory and a scientific law?
O Scientific laws are not as well proven as theories.
O Scientific laws are statements about observed experimental facts, while theories are explanations of natural phenomena.
Theories are not as well proven as scientific laws.
O Scientific laws explain natural phenomena while theories are just guesses.

Answers

Answer:

pretty sure its Scientific laws are statements about observed experimental facts, while theories are explanations of natural phenomena.

The statement that correctly explains the difference between a theory and a scientific law is as follows:

Scientific laws are statements about observed experimental facts, while theories are explanations of natural phenomena.

Thus, the correct option is B.

What is Scientific theory?

A Scientific theory may be defined as a well-explained fact that is significantly associated with the natural world that has been constructed through the utilization of the scientific method, and which brings together many facts and hypotheses.

A Scientific theory is based on observation. It is proven but still testable in nature in order to derive evidence. It generally does not possess mathematical statements and deductions. Theories are explained on nature as well as natural phenomena.

Scientific law is based on unalterable facts or those facts that remain constant. It is proven as well as contains evidence to support the claim. It definitely possesses mathematical statements and deductions.

Therefore, the correct option for this question is B.

To learn more about Scientific theories, refer to the link:

https://brainly.com/question/26665644

#SPJ2

how can an item with a lower mass have a higher weight than an item with a higher mass?

Answers

Answer:

probs has to do with the size of the object

Explanation:

A student is measuring the volumes of nectar produced by a flowering plant for an experiment. He measures nectar from 50 flowers using a graduated cylinder that measures to the nearest millilitre (mL). Which statement describes a change that can help improve the results of his experiment?
A.) His measurements will be more precise if he takes measurements from an additional 100 flowers. B.) His measurements will be more accurate if he uses a graduated cylinder that measures to the nearest tenth of a mL. C.) His measurements will be more precise if he uses a graduated cylinder that measures to the nearest tenth of a mL. D.) His measurements will be more accurate if he takes measurements from an additional 100 flowers.
NEED HELP NOW PLEASE!!!

Answers

Answer:

His measurements will be more precise if he uses a graduated cylinder that measures to the nearest tenth of a mL.

Explanation:

His measurements will be more accurate if he uses a graduated cylinder that measures to the nearest tenth of a mL. The correct option is B.

The closeness of a measurement to the real or recognised value is referred to as accuracy.

The learner can achieve more exact measurements and eliminate the possibility of rounding mistakes by using a graduated cylinder that measures to the closest tenth of a millilitre.

This enhanced precision will help to improve measurement accuracy. Taking measurements from more flowers (options A and D) will expand the sample size but will not enhance accuracy unless the measuring device is updated.

Option C recommends improving precision but does not address accuracy.

Thus, the correct option is B.

For more details regarding measurement, visit:

https://brainly.com/question/2107310

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i need to know what the summary of matter is helpppppp!!!!

Answers

Answer:

Matter can be classified according to physical and chemical properties. Matter is anything that occupies space and has mass. The three states of matter are solid, liquid, and gas. A physical change involves the conversion of a substance from one state of matter to another, without changing its chemical composition.

Explanation:

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