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3 years ago

How many hydrogen atoms Is needed for C2H2 to become saturated

Chemistry

1 answer:

Phoenix [80]3 years ago

7 0

It needs four hydrogen atoms

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In an acid-base neutralization reaction 38.74 ml of 0.500 m potassium hydroxide (ki) reacts with 50.00 ml of sulfuric acid solut

g100num [7]

Answer: 0.19M

Explanation: $2KOH+H_2SO_4\rightarrow K_2SO_4+2H_2O$

Using Molarity equation:

$n_1M_1V_1=n_2M_2V_2$

$M_1$ = molarity of acid

$V_1$ = volume of acid

$M_2$ = molarity of base

$V_2$ = volume of base

$2\times M_1\times 50ml=1\times 0.500M\times 38.74ml$

$M_1=0.19M$

Thus the concentration of the $H_2SO_4$ solution is 0.19M.

6 0

3 years ago

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Which statement best describes how the temperature of the ocean's surface water varies \

Maurinko [17]

The answer is C, high altitudes remove the water from heat source.

8 0

4 years ago

True or false: Observing a physical property of a substance will change the substances' identity I NEEED HELLLPPPPP NOOOWWWW !!!

andrew11 [14]

Answer:

false

Explanation:

a physical property can be observed and stay the same but a chemical property can't

8 0

4 years ago

3. describe natural sources of radiation. infer some of the dangers that radiation can impose.

maxonik [38]

Answer:

All of us are exposed to radiation every day, from natural sources such as minerals in the ground, and man-made sources such as medical x-rays. According to the National Council on Radiation Protection and Measurements (NCRP), the average annual radiation dose per person in the U.S. is 6.2 millisieverts (620 millirem).

Explanation:

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3 years ago

The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). If you breathe 15 times a minute (at res

Misha Larkins [42]

Answer:

Explanation:

Given parameters:

Number of breathe per minute = 15times

Volume of air per breath = 0.5L

Percentage of oxygen in air = 21%

Solution

There are 24 hours in a day.

60minutes makes a hour in a day,

I will breathe:

15 times x 60 x 24 = 21600 times in a day

The volume of air I will take in per day:

A breathe = 0.5L of air

21600breathe = 0.5 x 21600 = 10800L of air

Volume of oxygen I will breathe per day:

$\frac{21}{100}$ x 10800 = 2268L of oxygen

7 0

3 years ago