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Vlad [161]
3 years ago
5

I need help idk how to do the predicting product

Chemistry
2 answers:
kaheart [24]3 years ago
8 0

Answer:

well if you google how to find predicting product you will find the answer i dont think this counts as my answer but i tryed

Explanation:

zavuch27 [327]3 years ago
5 0

Alsdkfjdicfjrjxjcjridcifjehxjcifr

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How do you balance the equation Hydrogen plus Oxygen yield water?
Andre45 [30]
Hey there! Hello!

Not sure if you still need the answer to this question, but I'd love to help out if you do. 

So, the way to balance this equation is pretty simple. First, you need to keep in mind that molecules of hydrogen and oxygen do not come in single molecules, but in bonded pairs, represented by H2 and O2. 

H2+O2=H2O

But, that's incorrect. The combination of 2 hydrogen molecules with 1 oxygen molecule yields water, but that leaves one oxygen molecule leftover. When broken down, this is how many of each molecule is on each side of the previously stated equation:

Left:
H: 2
O: 2

Right:
H: 2
O: 1

So we have to multiply H2O on the right side by 2 in order to get this:

H2+O2=2(H2O)

Left: 
H: 2
O: 2

Right: 
H: 4
O: 2

The last step is to multiply H2 on the left by two to make it match up with the right side, balancing the equation:

2(H2)+O2=2(H2O)

Left: 
H: 4
O: 2

Right: 
H: 4
O: 2

That makes our equation balanced! I hope this helped you out, feel free to ask any additional questions if you need further clarification. :-)
5 0
3 years ago
PLEASE HELP!! A gas has a volume of 7.9 L at a temperature of 222. K and pressure of 877 mmHg. What is the new temperature (in C
Natali5045456 [20]

Answer:

82.97 K

Explanation:

Applying,

PV/T = P'V'/T'................ Equation 1

Where P = initial pressure, T = Initial temperature, V = Initial Volume, P' = Final pressure, V' = Final Volume, T' = Final Temperature.

Make T' the subject of formula in equation 1

T' = P'V'T/PV................ Equation 2

From the question,

Given: P = 877 mmHg = (877×0.001316) atm = 1.154 atm, T = 222.2 K, V = 7.9 L, P' = 0.327 atm, V' = 10.41 L

Substitute these values into equation 2

T' = (0.327×10.41×222.2)/(1.154×7.9)

T' = 82.97 K

Hence the new temperature is 82.97 K

7 0
3 years ago
g a package of aluminum foil contains 50 ft2 of foil, which weighs approximately 8.0 oz. aluminum has a density of 2.70 g/cm3. w
VMariaS [17]

Answer:

1.8×10^-2mm or 0.018mm

Explanation:

Density = mass/Volume

But volume= area×thickness

Area= 50ft2= 46451.52cm2

Mass=8oz= 226.7962g

Density= 2.70g/cm3

Thickness= mass/density ×area

= 226.7962/46451.52×2.70= 1.8×10-3cm= 1.8×10^-2mm

8 0
3 years ago
An ordered list of chemical substances is shown:
JulijaS [17]

Answer : The correct option is, (B) 2, 3 and 6.

Explanation :

Combustion reaction : It is a type of reaction where a hydrocarbon react with an oxygen molecule to give carbon dioxide, water as a product.

In general,

Hydrocarbon+O_2\rightarrow H_2O+CO_2

For example : Ethane react with oxygen to give carbon dioxide and water.

C_2H_8+4O_2\rightarrow 2CO_2+4H_2O

In the given list, O_2 is a reactant and CO_2,H_2O are the products.

Therefore, the correct answer is, (B) 2, 3, and 6

6 0
2 years ago
Find the average atomic mass for li if 7.5% of li atoms are 6li with a mass of 6.0151223 amu and 92.5% are 7li with a mass of 7.
gtnhenbr [62]

Answer:

6.94 amu

Explanation:

Step 1: Given data

  • Mass of ⁶Li (m⁶Li): 6.0151223 amu
  • Abundance of ⁶Li (ab⁶Li): 7.5% (0.075)
  • Mass of ⁷Li (m⁷Li): 7.0160041 amu
  • Abundance of ⁷Li (ab⁷Li): 92.5% (0.925)

Step 2: Calculate the average atomic mass (aam) of Li

We will use the following expression.

aam = m⁶Li × ab⁶Li + m⁷Li × ab⁷Li

aam = 6.0151223 amu × 0.075 + 7.0160041 amu × 0.925

aam = 6.94 amu

8 0
3 years ago
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