2 years ago

Sorry heres the one in the last question

Chemistry

1 answer:

blagie [28]2 years ago

7 0

So.. what’s the question?
Comment on this what it is so I can help you

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The oceanic crust is destroyed at convergent boundaries because it_______________________ *

ladessa [460]

Answer: I believe the answer is d) the rock crumbles at an ocean ridges

Explanation:

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3 years ago

2. How much heat must be absorbed by a sample of 1337 grams (g) of ice at -10°C in order to turn it into water vapor at 120°C?

olya-2409 [2.1K]

Answer:

Explanation:

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2 years ago

A metal, M, forms an oxide having the formula MO2 containing 59.93% metal by mass. Determine the atomic weight in g/mole of the

Damm [24]

Answer:

See solution.

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to set up the formula for the calculation of the by-mass percentage of the metal:

$\% M=\frac{m_M}{m_M+2*m_O}*100 \%\\\\59.93\% =\frac{m_M}{m_M+32.00}*100 \%$

Thus, we solve for the molar mass of the metal to obtain:

$59.93\% (m_M+32.00) =m_M*100 \%\\\\m_M*59.93\% +1917.76\% =m_M*100 \%\\\\m_M=47.86g/mol$

For the subsequent problems, we proceed as follows:

$4.00gO_2*\frac{1molO_2}{32.00gO_2}=0.125molO_2$

$0.400molH_2S*\frac{2molH}{1molH_2S}*\frac{6.022x10^{23}atomsH}{1molH}=4.82x10^{23}atomsH$

$0.235gNH_3*\frac{1molNH_3}{17.03gNH_3} *\frac{3molH}{1molNH_3}*\frac{6.022x10^{23}atomsH}{1molH}=2.49x10^{22}atomsH$

Regards!

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2 years ago

the trend for ionization energy is a general increase from left to right across a period. However phosphorus is found to have hi

dimaraw [331]

Since phosphorus is in the 5th group it has the ability to gain or lose electrons

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3 years ago

How many Neutrons are in the Nucleus of an atom that has an atomic mass of 36 andan atomic number of 25?

Wewaii [24]

Answer:

11 neutrons

Explanation:36-25=11

7 0

2 years ago

Sorry heres the one in the last question​

Sorry heres the one in the last question