2 years ago

How many chromium (II) ions would bond with 2 phosphate ions?

Chemistry

1 answer:

zvonat [6]2 years ago

3 0

Answer:

ummmm I don't know of sorry

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What is the percent composition of N in HNO3 ?

bonufazy [111]

Answer:

22.22%

Explanation:

N/HNO3*100

14/63*100

=22.22%

4 0

3 years ago

Which quantity can be calculated using the equation E = mc2?

lidiya [134]

Energy, mass, and the speed of light squared.
(E, M, and C^2 respectively).

Hope this helped! :)

5 0

3 years ago

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Please help

KonstantinChe [14]

Answer: There are 0.5 grams of barium sulfate are present in 250 of 2.0 M $BaSO_{4}$ solution.

Explanation:

Given: Molarity of solution = 2.0 M

Volume of solution = 250 mL

Convert mL int L as follows.

$1 mL = 0.001 L\\250 mL = 250 mL \times \frac{0.001 L}{1 mL}\\= 0.25 L$

Molarity is the number of moles of solute present in liter of solution. Hence, molarity of the given $BaSO_{4}$ solution is as follows.

$Molarity = \frac{mass}{Volume (in L)}\\2.0 M = \frac{mass}{0.25 L}\\mass = 0.5 g$

Thus, we can conclude that there are 0.5 grams of barium sulfate are present in 250 of 2.0 M $BaSO_{4}$ solution.

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3 years ago

The fuel used to power the booster rockets on

Effectus [21]

Answer:

746 moles of H2O are been produced from 373 moles of Al.

Explanation:

For every 3 moles of aluminum, you get 6 moles of H2O (double). Therefore, every 373 moles of Al, you will get double as well, that is 746 m.

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3 years ago

When three pairs of electrons are shared in a molecule, what shape will the molecule be?

djyliett [7]

The correct answer is B. The shape of a molecule where three pairs of electrons are shared is a trigonal planar. This is characterized by one central atom and three atoms forming an equilateral triangle which is bonded to the central atom.

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3 years ago

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