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3 years ago

When a group 1 element and a group 16 element bond, the subscripts in the formula will always be?

Chemistry

1 answer:

zloy xaker [14]3 years ago

4 0

Answer:

X2Y2

Explanation:

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Which phase change at standard temperature and pressure represents sublimation? [ASSET]

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(a) CO₂(s) ⇌ CO₂(g) is an example of sublimation.

<em>Sublimation</em> is the conversion of a <em>solid directly to a gas</em> without going through the liquid phase.

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4 years ago

What is the best example of energy is transferred object to object

Gwar [14]

electric energy to heat and light energy

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3 years ago

Convert 565,900 seconds into days

Andreas93 [3]

There are 60 seconds in one minute

565900 / 60 = 9431.667 minutes in 565,900 seconds

There are 60 minutes in an hour

9431.667 minutes / 60 = 157.9144 hours in 565900 seconds

There are 24 hours in 1 day

157.9144 hours / 24 hours = 6.5498 days.

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4 years ago

A magnesium ion, Mg2+, with a charge of 3.2×10−19C and an oxide ion, O2−, with a charge of −3.2×10−19C, are separated by a dista

baherus [9]

Explanation:

Formula for work done is as follows.

W = $-k \frac{q_{1}q_{2}}{d}$

where, k = proportionality constant = $8.99 \times 10^{9} Jm/C^{2}$

$q_{1} = charge of Mg^{2+} = 3.2 \times 10^{-19} C$

$q_{2} = charge of O_{2-} = -3.2 \times 10^{-19} C$

d = separation distance = 0.45 nm = $0.45 \times 10^{-9} m$

Now, we will put the given values into the above formula and calculate work done as follows.

W = $-k \frac{q_{1}q_{2}}{d}$

= $\frac{-[8.99 \times 10^{9} Jm/C^{2} \times 3.2 \times 10^{-19} C \times -3.2 \times 10^{-19} C]}{0.25 \times 10^{-9} m}$

= $3.68 \times 10^{-18} J$

Thus, we can conclude that work required to increase the separation of the two ions to an infinite distance is $3.68 \times 10^{-18} J$ .

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3 years ago

The half-life of U234 is 25200 years. How much of a 100 gram sample remains after 352800 years?

lord [1]

The answer is um hold on need a dictionary lol jk but i will be right back to help you

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3 years ago