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3 years ago

Which reaction will occur? 2NaBr+I2 —> 2NaI + Br2

Chemistry

2 answers:

Veronika [31]3 years ago

7 0

Answer:

This is a single replacement reaction because I replaces Br.

Novay_Z [31]3 years ago

3 0

Answer: This reaction can'toccur

Explanation

Iodine can't displace Bromine from its compound been less reactive than Br

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Brainllest! Why are they called hot air balloons and not cold air balloons? Be sure to use the terms density, volume, and mass i

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Hot air balloons have hot air inside them, which is less dense as the air around it. Thus it rises. A cold air balloon would sink because the air would be more dense than the air around it. Also, the balloon’s volume would vary in size depending on the weight of the balloon.

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3 years ago

Material deposited directly by a glacier is called ______.

jolli1 [7]

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3 years ago

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A 215-g sample of copper metal at some temperature is added to 26.6 g of water. The initial water temperature is 22.22 oC, and t

andrezito [222]

The initial temperature of the copper metal was 27.38 degrees.

Explanation:

Data given:

mass of the copper metal sample = 215 gram

mass of water = 26.6 grams

Initial temperature of water = 22.22 Degrees

Final temperature of water = 24.44 degrees

Specific heat capacity of water = 0.385 J/g°C

initial temperature of copper material , Ti=?

specific heat capacity of water = 4.186 joule/gram °C

from the principle of:

heat lost = heat gained

heat gained by water is given by:

q water = mcΔT

Putting the values in the equation:

qwater = 26.6 x 4.186 x (2.22)

qwater = 247.19 J

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3 years ago

A 72.0 mL aliquot of a 1.40 M solution is diluted to a total volume of 248 mL. A 124 mL portion of that solution is diluted by a

Aliun [14]

Answer: 0.20 M

Explanation:

According to the dilution law,

$M_1V_1=M_2V_2$

where,

$M_1$ = molarity of stock solution = 1.40 M

$V_1$ = volume of stock solution = 72.0 ml

$M_2$ = molarity of diluted solution = m

$V_2$ = volume of diluted solution = 248 ml

$1.40\times 72.0=m\times 248$

$m=0.41M$

Now 124 mL portion of this prepared solution is diluted by adding 133 mL of water.

According to the dilution law,

$M_1V_1=M_2V_2$

where,

$M_1$ = molarity of stock solution = 0.41 M

$V_1$ = volume of stock solution = 124 ml

$M_2$ = molarity of diluted solution = m

$V_2$ = volume of diluted solution = (124 +133) ml = 257 ml

$0.41\times 124=m\times 257$

$m=0.20M$

Thus the final concentration of the solution is 0.20 M.

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3 years ago

An atom Q contains 19 electrons, 19 protons and 20 neutrons. <br> What is Q

ZanzabumX [31]

Answer: Potassium

Explanation: Potassium is the chemical element with 19 electrons, 19 protons and 20 neutrons.

Please mark me Brainliest if you think that had answer this question in a better way.

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3 years ago

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