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3 years ago

12

IF YOU ARE MR.BEAST FAN ANSWER THIS. What do waves transfer?

2 answers:

yarga [219]3 years ago

5 0

Answer:

Subscribe to MR.BEAST AND HE WILL GIVE YOU A FREE CAR OF EVEN A HOUSE OR YOU MAY WIN 10,000 DOLLAR!!!!!!!!!!!!!!!!!!!!!!!!

Explanation:

Gemiola [76]3 years ago

4 0

Answer:

d

Explanation:

A sound wave involves the movement of energy from one location to another, not the ... TRUE OR FALSE: In order for John to hear Jill, air molecules must move from the ... Ocean waves can only bring energy to the shore; the particles of the medium ... a. mechanical b. electromagnetic c. transverse d. longitudinal. Answer: D

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A water sample is found to contain 59 ppm

NeX [460]

Explanation:

k so basically u gotta do 59/1000000 then multiply that by 972 which gives u 0.057348

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4 years ago

How does the mass of the water compare to the mass of the ice?

snow_lady [41]

The mass of water is the same as the mass of ice

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3 years ago

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A balance and a graduated cylinder are used to determine the density of a mineral sample.

Nostrana [21]

Yea what they said up top!

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3 years ago

CADMIUM SOLUBILITY AND pH Cadmium is a toxic metal. It can be removed from water by chemical precipitation of solid cadmium hydr

Serga [27]

Explanation:

It is known that,

Molar mass of Cd = 112.41 g/mol

Standard concentration of Cd = 0.005 mg/L = $0.005 \times 10^{-3}$ g/L

Hence, we will calculate the molarity as follows.

Molarity = $\frac{0.005 \times 10^{-3}}{112.41} mol/L$

= $4.45 \times 10^{-8}$ M

Equation for the reaction is as follows.

$Cd(OH)_{2} \rightleftharpoons Cd^{2+} + 2OH^{-}$

$K_{sp} = [Cd^{2+}][OH^{-}]^{2}]$

$2 \times 10^{-34} = 4.45 \times 10^{-8} \times [OH^{-}]^{2}$

$[OH^{-}] = 6.7 \times 10^{-4}$ M

Also,

$[H^{+}] = \frac{10^{-14}}{[OH^{-}]}$

= $\frac{10^{-14}}{6.7 \times 10^{-4}}$

= $1.49 \times 10^{-11} M$

Relation between pH and concentration of hydrogen ions is as follows.

pH = $-log [H^{+}]$

= $-log (1.49 \times 10^{-11} M)$

= 10.82

Thus, we can conclude that a minimum pH of 10.82 is necessary to reduce the dissolved cadmium ion concentration to the standard.

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3 years ago

Question 19-20<br> I’m not really sure, can someone help me

Nesterboy [21]

Hi my name is Jaleesa The answer = -1

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3 years ago