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DochEvi [55]
3 years ago
11

Can somebody help me out with this question?

Chemistry
2 answers:
KengaRu [80]3 years ago
5 0

Answer:

3 element

Explanation:

H2SO4  has 2 hydrogen atom, 1 sulfur atom, 4 oxygen atoms that are chemically bonded.

Wewaii [24]3 years ago
3 0
Sulfuric acid contains 2 hydrogen atoms, 1 sulfur atom, and 4 oxygen atoms. Sulfuric Acid H2SO4- A highly corrosive colorless to dark brown liquid.
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What is the approximate temperature of 1.4 moles of a gas with a pressure of 3.25 atmospheres in a 4.738-liter container
attashe74 [19]

Answer:

134K

Explanation:

Using the ideal gas law equation;

PV = nRT

Where;

P = pressure (atm)

V = volume (Litres)

n = number of moles (mol)

R = gas constant (0.0821 Latm/Kmol)

T = temperature (K)

Based on the information provided, n = 1.4moles, P = 3.25atm, V = 4.738L, T = ?

3.25 × 4.738 = 1.4 × 0.0821 × T

15.3985 = 0.11494T

T = 15.3985/0.11494

T = 133.969

Approximately;

T = 134K

3 0
3 years ago
A population of Esherichia coli is given time to grow for eight generations. The final population is 1,996,800 cells. What was t
hram777 [196]

Answer:

7800 cells

Explanation:

The number of Escherichia coli cells N after n generations is given by

N = 2ⁿ × N₀ where N₀ = initial population

Now making N₀ subject of the formula, we have

N₀ = N/2ⁿ

Since n = 8 and N = 1,996,800 cells, substituting the values of the variables into the equation, we have

N₀ = N/2ⁿ

N₀ = 1,996,800 cells/2⁸

N₀ = 1,996,800 cells/256

N₀ = 7800 cells

So, the initial population of Escherichia coli cells is 7800 cells.

7 0
3 years ago
If the formula for a compound is represented by XY2 and the charge on the Y ion is -2, what is the charge in the X ion?
Georgia [21]
The total charge of a compound must be zero. So the Y ion has charge of -2. Then the charge of X ion+(-2)*2=0. So the charge of X ion is +4.
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Harry brought his first wand for 7 galleons. How much does that cost in British pounds
DanielleElmas [232]

the answer is 8.35 pounds

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4 years ago
Energy Changes 1:Question 2
cestrela7 [59]

Answer:

Number3=Heat is absordedduring chemical reaction

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3 years ago
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