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harkovskaia [24]
2 years ago
10

Can someone help me with this question please?

Chemistry
2 answers:
r-ruslan [8.4K]2 years ago
8 0

Answer:

What is the context?

Explanation:

sineoko [7]2 years ago
4 0

Answer:

?

Explanation:

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An neutral atom has 40 protons and 10 neutrons what is the mass number
olya-2409 [2.1K]

Answer:

50

Explanation:

40-10 = 30…...…............

5 0
3 years ago
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What mass of sodium hydroxide is needed to neutralise 24.5kg of sulfuric acid <br> H2SO4 + N2 = 2NH3
sveticcg [70]

Answer:

23.92 g

Explanation:

Molar mass of H2SO4 = (2×1)+32+(16×4)= 2+32+48= 82g/mol

H2SO4 + 2NaOH ---> Na2SO4 + 2H2O

I mole of H2SO4 = 2 moles of NaOH

24.5/82 = 24.5/82 × 2

= 0.598 moles of NaOH will neutralize

Mass= mole× molar mass

Molar mass of NaOH= 23+16+1 = 40g/mol

Mass= 0.598 × 40 = 23.92g of NaOH

7 0
2 years ago
What part of the water cycle involves the leaves of plants
zvonat [6]

Answer: The answer to this question is transpiration.

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5 0
2 years ago
An ion from a given element has 24 protons and 22 electrons
musickatia [10]
Hi,

An ion with unequal number of protons and electrons haves a name. A name depends on whether there are more protons than electrons (CATION) or if there are more electrons than protons (ANION).

Hope this helps.
r3t40
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3 years ago
Radiation from structures that have a very high temperature is collected by
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I would radiation a robotics arm but for a heated surphace is Shiny surfaces are poor absorbers and emitters (but they are good reflectors of infrared radiation).

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