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Butoxors [25]
3 years ago
6

PLEASE HELP!

Chemistry
1 answer:
jok3333 [9.3K]3 years ago
8 0

Answer: due to the nature and complexity of some documents, an accessible version of the ... 1. Grade 6 Science Learning Activity. Ocean, Atmosphere, & Climate Unit ... We started this unit by making initial claims about why Christchurch's air ... Ocean currents move in the same direction as the prevailing wind in some places in the.

Explanation:Ocean water is on the move, affecting your climate, your local ecosystem, and the ... Map of temperature of the North Atlantic Ocean shows the warm Gulf Stream current along the. Winds, water density, and tides all drive ocean currents. ... much of Northern Europe significantly warmer than other places equally as far north.

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How to tell if a reaction is double bond or single
Alenkasestr [34]

Answer:

Single replacement is a reaction in which one element reacts with another compund to form another compound and another element.

planation:

6 0
3 years ago
The second-order decomposition of NO2 has a rate constant of 0.255 M-15-1. How much NO2 decomposes in 4.00 s if the initial conc
S_A_V [24]

Answer:

Option D, Concentration of NO2 decomposes after 4.00 s = 0.77 mol

Explanation:

rate\;constant = 0.255\;M^{-1}s{-1}

Time (t) = 4.00\;s

Initial concentration of NO2 = 1.33 M

Integrated law for second order reaction:

\frac{1}{[A]}=\frac{1}{[A]_0} =kt

Where, [A] = Concentration after time, t

[A]0 = Intitial concentration, k = rate constant, t = time

On substituting values in the above

\frac{1}{[A]}=\frac{1}{1.33} =0.255 \times 4.00

\frac{1}{[A]} =1.772

[A] = 0.5644 M

Concentration of NO2 decomposes after 4.00 s = 1.33 - 0.5644 = 0.7656 M

No. of mole = Molarity * volume

                    = 0.7656 * 1

                    = 0.7656 mol 0r 0.77 mol

4 0
4 years ago
2. How can glass be a liquid if it's so hard?
marin [14]

Explanation:

Glass is not a liquid in the strictest sense of the word. But it is also not a standard solid. The chemistry of glass is complex and research is ongoing, but the current consensus is that glass is a phase of matter all its own, known as an "amorphous solid". Scientists refer to any amorphous solid as a "glass". Glass transitions are highly complex and cannot be treated in the same way as traditional phase transitions.

7 0
3 years ago
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Which of these is NOT a physical change?
alexdok [17]

Answer:

C. Magnetization of iron

Explanation:

This is a chemical change and cannot be undone by physical means therefore it isn't a physical change

6 0
3 years ago
Increasing an airplane's speed or wing size does which of the following? O A. Creates a sonic boom B. Generates more lifting for
svetoff [14.1K]

Answer: B: generates more lifting force.... just got it correct

Explanation:

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3 years ago
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