CH4 and CO₂ are the chemical formulas for:

Answer:

false

compound are formed from elements .

Answer:

3_ethylpentane

4_ethylheptane

1_pentene

3_hexene

Answer:

There are 0.0364⋅mol

Explanation:

Answer:

Human activities have a tremendous impact on the carbon cycle

Explanation:

Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... The ocean absorbs much of the carbon dioxide that is released from burning fossil fuels.

The answer is Mg3 glad I helped

Answer:

19.7 L N2

Explanation:

The volume of the nitrogen gas at STP is equal to 19.72 L.

The ideal gas equation can be defined as an equation that describes the behavior of an ideal gas. This equation gives by the product of the volume and pressure is equal to the product of the moles of gas, gas constant, and absolute temperature.

The mathematical form of the ideal gas law is given as follows:

PV = nRT

Where n is the moles, V is the volume, R is the universal gas constant and P is the pressure.

The temperature of the N₂ , T =  0° C = 273 K

The pressure of the gas at STP, P = 1 atm

The value of the universal gas constant, R = 0.082 atm L/K mol

The number of moles of N₂, n = 0.881 mol

Fill in the values n, R, P, and T in the equation, and we get:

1 × V = 0.881 × 0.082 × 273

V = 19.72 L

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Answer:

2 grams.

Explanation:

H2 + O2 --->  H2O2

Using molar masses:

2*1 g hydrogen   reacts with 2*16  g oxygen.

so 2g H2 reacts with 32 g O2.

Answer:

2 K(s) + Cl₂ (g) --> 2 KCl(s)

Explanation:

Potassium will just be K

Chlorine gas is part of BrIClHOF, which are diatomic gasses. So Cl₂

Looking at the periodic table potassium K has an ion charge of +1 and chlorine Cl has an ion charge of -1, so in a balanced compound they will be written as KCl

Balancing the amounts of each will lead to 2 K(s) + Cl₂ (g) --> 2 KCl(s)

Answer:

a.

[tex]K=\frac{[BaO]^2}{[Ba]^2[O_2]}[/tex]

b.

[tex]K=\frac{[MgO]^2}{[Mg]^2[O_2]}[/tex]

c.

[tex]K=\frac{[P_4O_{10}]^2}{[P_4][O_2]^5}[/tex]

Explanation:

Hello!

In this case, since the equilibrium expression is set up by dividing the products over the reactants and powering to the stoichiometric coefficient, we can proceed as follows:

a. 2 Ba + O2 ⇌ 2 BaO.

[tex]K=\frac{[BaO]^2}{[Ba]^2[O_2]}[/tex]

b. 2 Mg + O2 ⇌ 2MgO

[tex]K=\frac{[MgO]^2}{[Mg]^2[O_2]}[/tex]

c. P4 + 5 O2 ⇌ P4O10

[tex]K=\frac{[P_4O_{10}]^2}{[P_4][O_2]^5}[/tex]

Best regards.

Answer:

3.346*10^25

Explanation:

Hope this helps

Answer:

In physics, action is an attribute of the dynamics of a physical system from which the equations of motion of the system can be derived through the principle of stationary action. ... Action has dimensions of energy⋅time or momentum⋅length, and its SI unit is joule-second.

Explanation:

hope it helps

Answer:

Action is an attribute of the dynamics of a physical system from which the equations of motion of the system can be derived through the principle of stationary action.

Explanation:

Kitchen Math: Measuring

1. By understanding how to measure ingredients, time and temperature,

you take the guesswork out of cooking.

2. The two scales for temperature are Fahrenheit and Celsuis.

3. The three times to wash when cooking are: A. before cooking

B. during cooking

C. after handling of food

4. The three kinds of measurement are

A. estimated

B. ratio

C. calibrated measurement

5. Estimated measurement is great for foods such as soup.

6. Ratio cooking compares the amount of one ingredient to another

ingredient.

7. The most common kind of kitchen measurement in America is the English system.

8. One quart is almost a liter.

9. The metric system is based on tens.

Kitchen Math 3

Learning ZoneXpress 888-455-7003 • www.learmingzonexpress.com

10. Measuring tools you find in almost every kitchen are timers, thermometers and measuring containers.

11. Water freezes at 32 Fahrenheit and 0° Celsius. Water boils at 212" Fahrenheit and 100° Celsius.

12. When measuring dry ingredients, you want to dip, scoop and scrape.

13. If your recipe calls for sifted flour, sift it before you measure.

14. Brown sugar, cooked rice and chopped parsley need to be packed down in measuring cups

15. When measuring liquids, get down at eye level.

16. Measuring spoons are used for both liquid and dry ingredients.

17. Use the back of a knife to scrape off dry ingredients when using a measuring spoon,

18. Taring is when you allow for the weight of a container or wrapper.

19. Dry ingredients do not weigh the same as wet ingredients.

20. A large egg weighs about 2 ounces.

21. Turn pancakes when you see bubbles on the top.

Answer: the answewr is A. hope this helps!

Explanation:

Nitrogen=21.1999%

Hydrogen=6.1023%

Sulfur=24.2660%

The percent composition of nitrogen, hydrogen, sulfur , oxygen in ammonium sulfate is 21.18%, 6.05%,24.21%,48.43% respectively.

The percent composition  is defined as a convenient way to record concentration of solution.It is a expression which relates solute to solvent as,mass of solute/mass of solution ×100.It helps in elemental analysis of a given compound by giving proportions in which they are present.

Percent composition of N= 28/132.14×100=21.18%

Percent composition of H=8/132.14×100=6.05%

Percent composition of S=32/132.14×100=24.21%

Percent composition of O=64/132.14×100=48.43%.

Thus, the percent composition of nitrogen, hydrogen, sulfur , oxygen in ammonium sulfate is 21.18%, 6.05%,24.21%,48.43% respectively.

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Answer:

Yes its correct

Explanation:

Protons + Nuetrons

Answer: Go with your gut cos

Explanation:

Answer:Where is the diagram

Explanation:

The formula is used for calculating speed. D stands for distance, T stands for time. Full formula is S=D/T

Answer:

3.1 M

Explanation:

3.1 M has the highest concentration of sweet tea so it should taste the sweetest.

Answer:

2 M

Explanation:

NaOH + HCl --> NaCl + H2O,

5.54 mL = .00545 L,

If we consider 2.18 M, M [molarity] = mol/L, so we have 2.18 mol/L. From this we can get the moles of NaOH.

.00545 L *  2.18 mol/L ≈ .0121 mol

The concentration of HCl can be found from the following:

.0121 mol = .00619(x) [where x = concentration of HCl]

x = 1.955 M ≈ 2 M

We equate the two as we require the same amount in order to neutralize the base.

Oh sheesh girl.. this is tricky.. but I can try:)

Between the chemical reaction of the chemicals and the label on the bottle the ions from in the radioactive product contained in the bottle separates the label from the surface. Im guessing that due to the "radioactive waste" in the bottle that there are components of thermal heat, that may also have an effect on the "label".  So when talking about the reaction we have a chemical and thermal reaction happening.

I tried... and im sorry if it dosen't make sense...  +_=||

have a wonderful day :)

Explanation:

having no strongly marked or positive characteristics or features.

Answer:

Explanation:

D. i had this on my science test!!!

Answer:

D

Explanation:

yup its D

Answer:

plant cells and eukroyatic algae

Answer: Burning natural gas for energy results in fewer emissions of nearly all types of air pollutants and carbon dioxide (CO2) than burning coal or petroleum products to produce an equal amount of energy.

Explanation:

Answer:

Natural gas is a relatively clean burning fossil fuel . Burning natural gas for energy results in fewer emissions of nearly all types of air pollutants and carbon dioxide than burning coal or petroleum products to produce an equal amount of energy.

Explanation:

Answer: Fusion, vaporization, and sublimation are endothermic processes, whereas freezing, condensation, and deposition are exothermic processes. Changes of state are examples of phase changes, or phase transitions. All phase changes are accompanied by changes in the energy of a system

Explanation: