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Ulleksa [173]
3 years ago
12

Is the trend in reactivity for nonmetals the same as the trend in reactivity for metals?

Chemistry
2 answers:
ZanzabumX [31]3 years ago
8 0
In Non-metals
Period - reactivity increases as you go from the left to the right. Group - reactivity decreases as you go down the group. hope this helps, sorry if it doesn’t
Juli2301 [7.4K]3 years ago
3 0

Answer:

no

Explanation:

In Non-metals

Period - reactivity increases as you go from the left to the right. Group - reactivity decreases as you go down the group

In Metals

Reactivity increases down a group because as nuclear shielding increases and the nucleus' hold on the valence electron weakens, therefore it is easier to remove valence electrons.

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The frequency of an x-ray wave is 3.0 x 1012MHz. Its wave speed is 3.0x 108m/s. Calculate the wavelength of the x-ray wave below
jasenka [17]

Answer: The wavelength of the x-ray wave is 10^{-10}m

Explanation:

To calculate the wavelength of light, we use the equation:

\lambda=\frac{c}{\nu}

where,

\lambda = wavelength of the light  = ?

c = speed of x-ray= 3.0\times 10^8m/s

\nu = frequency of x-ray = 3.0\times 10^{12}MHz=3.0\times 10^{18}Hz= 3.0\times 10^{18}s^{-1}     (1Hz=1s^{-1})

Putting in the values:

\lambda=\frac{3.0\times 10^8m/s}{3.0\times 10^{18}s^{-1}}=10^{-10}m

Thus the wavelength of the x-ray wave is 10^{-10}m

5 0
3 years ago
Does anybody know which element from the periodic table that has 19 electrons and 24 neutrons, for atomic charge.
jeka57 [31]
It Potassium my anime friend
6 0
3 years ago
PLEASE HELP: You have been given 2.42 moles of beryllium sulfide (BeS), determine the mass in grams of beryllium sulfide that yo
Alecsey [184]

The mass in grams of the given beryllium sulfide is 99.2 g. The correct option is the second option - 99.2 g BeS

<h3>Calculating mass of a compound </h3>

From the question, we are to determine the mass of the given beryllium sulfide.

From the given information,

Number of moles of beryllium sulfide (BeS) given = 2.42 moles

Using the formula,

Mass = Number of moles × Molar mass

Molar mass of BeS = 41 g/mol

Then,

Mass of BeS = 2.42 × 41

Mass of BeS = 99.22

Mass of BeS ≅ 99.2 g

Hence, the mass in grams of the given beryllium sulfide is 99.2 g. The correct option is the second option - 99.2 g BeS

Learn more on Calculating mass of a compound here: brainly.com/question/18142599

3 0
2 years ago
Which describes the role of energy in photosynthesis and cellular respiration?
bagirrra123 [75]

Answer:

A) Energy is needed to start photosynthesis and is a product of cellular respiration.

Explanation:

5 0
3 years ago
Read 2 more answers
How many moles of NH4NO3(s) must be dissolved in water so that 73.0 kJ of heat is absorbed from the water? (The molar heat of so
fenix001 [56]
25 kj  absorbed  by  dissolving  1 mole of  NH4NO3

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what  about  73  kj  absorbed  by  dissolving

0.03891  x73=  2.8404 moles

3 0
3 years ago
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