CHEMISTRY HIGH SCHOOL

Can Sodium be used to distinguish between cyclobutanol and butanoic acid

Answers

Answer 1
Answer:

Answer:

\boxed{\text{No}}

Explanation:

Na reacts with all OH groups to produce hydrogen.

The reaction with cyclobutanol is shown below.  

The reaction with butanoic acid is

\rm CH_(3)CH_(2)CH_(2)COOH\xrightarrow{\text{Na}} CH_(3)CH_(2)CH_(2)COO^(-) + H_(2)

Both compounds release bubbles of hydrogen, so you can't use sodium to distinguish between them.

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Choose all of the examples where there would be an increase in the electric or magnetic force

Answers

Answer:

Explanation:

1) Increase the amount of charge on each object

2) Decrease the distance between each object

3) Increase the mass of the objects.

just colmpeated this in usa test prep 100% correct

The temperature at the point of intercept of the plotted data with the Temperature axis is:600°C
-273°C
-160°C
50°C

Answers

Answer: The temperature at the point of intercept is -273°C.

Explanation: Intercept is a point on a graph which crosses the x and y axes.

Here, The X-axis represents Temperature in °C and Y-axis represents the Volume in mL.

On X-axis, the major division is 100 and minor division is 10. The slope intercepts the X-axis at third minor division from the origin. Hence, the temperature of intercept corresponds to -273°C.
An axis is a line of numbers in a graph. The intercept is where a line of data and axis intersect, which if you look at the purple line and the temp. axis, is around -273 C.

A brick measures 25 cm by 12 cm by 13 cm. What is the volume of the brick in cm3? How many millilitters of water would this brick displace?

Answers

Answer:

Volume of brick = 3900 cm3 = 3.9*10^3 cm3

Volume of water displaced = 3900 ml = 3.9*10^3 ml

Explanation:

Given:

Dimension of the brick = 25 cm, 12 cm, 13 cm

To determine:

a) Volume of the brick

b) Volume (ml) of water displaced by the brick

Calculation:

a) Volume of the brick (cube) is expressed as a product of the dimensions

Volume = length (l)*width(w)*height(h)

Volume = 25cm*12cm*13 cm = 3900cm^(3) = 3.9*10^(3) cm^(3)

b) The volume of water displaced is equal to  the volume of the brick.

Since, 1 ml = 1 cm3

Therefore, volume of water displaced = 3900 ml = 3.9*10^3 ml
25 cm x 12 cm x 13 cm = 3900 cm^3 Water has a density of 1 mL/cm^3, so the brick would displace 3900 mL of water.

What is the average time it took for the tablet to
dissolve in cold water?

Answers

Answer:

It might take 20-30 seconds to dissolve in water

Explanation:

Water (H2O) is considered a mineral because it is inorganic and occurs naturally.a. True
b. False

Answers

b.false because water is not mineral

the average adult human male has a total blood volume of 5.0 L. if the concentration of sodium ion in this average individual is 0.135 M, what is the mass of sodium ion circulating in the blood?

Answers

Molarity is a way of expressing concentration that is equal to the ratio of the moles of the solute to the liters of solution. The amount of substance in moles can be calculated through,
                         moles = (molarity) x (volume in liters)
Substituting the values,
                         moles = (0.135 M) x (5.0 L) = 0.675 moles
Multiply this value with the molar mass of sodium ion,
                         mass = (0.675 moles) x (23 g/ mole) = 15.525 grams
Therefore, the mass of sodium ion in the blood is 15.525 grams.  
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