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2 years ago

What is the power of a food processor that can perform 1,350 joules of work in 15 seconds

Chemistry

1 answer:

velikii [3]2 years ago

6 0

Power is energy divided by time and it’s unit is watta(W)

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Number of moles in 31.99g O2 <br> And 176.8g NaCl

sergey [27]

#O_2

$\\ \sf\longmapsto No\:of\;moles=\dfrac{Given\:mass}{Molar\:mass}$

$\\ \sf\longmapsto No\:of\:moles=\dfrac{31.99}{32}$

$\\ \sf\longmapsto No\:of\:moles\approx 1$

#NaCl

$\\ \sf\longmapsto No\:of\:moles=\dfrac{176.8}{58.5}$

$\\ \sf\longmapsto No\;of\:moles=3mol$

8 0

1 year ago

What is Lewis symbol for K+

Alexxx [7]

Lewis symbol for K+ is given by a dot and K.

<h3>Meaning of Lewis symbol</h3>

Lewis symbols can be defined as a symbol the is used in describing the valence electron configurations of an atom ions.

A Lewis symbol consists of the symbol of the element and then surrounded by one dot for each of its valence electrons.

In conclusion, Lewis symbol for K+ is given by a dot and K.

Learn more about Lewis symbol: brainly.com/question/6605265

#SPJ1

7 0

1 year ago

A solution of NaOH has a concentration of 25.00% by mass. What mass of NaOH is present in 0.250 g of this solution? Use the peri

meriva

The concentration of NaOH is 25.00% by mass, it means that 25.00% of the mass of the solution is of NaOH. Hence:

$m_{NaOH}=25.00\%\times m_{solution}\Longrightarrow m_{NaOH}=\dfrac{25}{100}\times 0.250~g\iff\\\\\boxed{m_{NaOH}=0.0625~g}$

7 0

2 years ago

Read 2 more answers

What mass of NaCl would you have dilute to 1L to make up a 0.25M solution?<br> Asap please

gavmur [86]

Answer: 0.25m

Im not sure but i think

Explanation:0.25/0.25

3 0

2 years ago

Pick the word that best completes the following sentence. A

NISA [10]

The answer is A :) homogeneous!

7 0

1 year ago