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4 years ago

Which of these elements is a halogen? magnesium sodium bromine calcium

Chemistry

2 answers:

Gala2k [10]4 years ago

5 0

Trick question! none

USPshnik [31]4 years ago

4 0

Bromine is a halogen

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The name given to the force of attraction of the electrons of one atom for the protons of another atom in close proximity is?

yan [13]

The correct answer is the attractive force. The name given to the force of attraction of the electrons of one atom for the protons of another atom in close proximity is called the attractive force. There is a sense of attraction that happened electrons and protons.

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3 years ago

Read 2 more answers

How many grams of NaCl are dissolved in 500.0 mL of a 0.050 M solution of NaCl?

Anestetic [448]

Answer: 1.461 g of NaCl is dissolved in the solution.

Explanation:

Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L.

The formula used to calculate molarity:

$\text{Molarity of solution}=\frac{\text{Given mass of solute}\times 1000}{\text{Given mass of solute}\times \text{Volume of solution (mL)}}$ .....(1)

Given values:

Molarity of solution = 0.050 M

Molar mass of NaCl = 58.44 g/mol

Volume of solution = 500.0 mL

Putting values in equation 1, we get:

$0.050=\frac{\text{Given mass of NaCl}\times 1000}{58.44\times 500}\\\\\text{Given mass of NaCl}=\frac{0.050\times 58.44\times 500}{1000}\\\\\text{Given mass of NaCl}=1.461g$

Hence, 1.461 g of NaCl is dissolved in the solution.

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3 years ago

How would Cl gain stability

love history [14]

Cl has 7 valence electrons, it needs 8 to be stable, according to the octet rule, so Cl gains stability by gaining 1 electron to reach 8 electrons

4 0

4 years ago

HELP ASAP PLS Reactions, products and leftovers

Alenkasestr [34]

Answer:

See the answer below

Explanation:

From the original equation in the image, the mole ratio of C:CO2:CO is 1:1:2. This means that for every 1 mole of C and CO2, 2 moles of CO would be produced.

Now, looking at the simulation below the equation of the reaction, 3 moles of C and 8 moles of CO2 were supplied as input. Applying this to the original equation of reaction, C seems to be a limiting reagent for the reaction because the ratio of C to CO2 should 1:1.

Hence, taking all the 3 moles of C available means that only 3 moles out of the available 8 for CO2 would be needed. 3 moles c and 3 moles CO2 means that 6 moles CO would be produced (remember that the ratio remains 1:1:3 for C, CO2, and CO). This means that 5 moles CO2 would be leftover.

In other words, all the 3 moles C would be consumed, 3 out of 8 moles CO2 would be consumed, and 6 moles CO would be produced while 5 moles CO2 would be leftover.

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3 years ago

How does parallax affect vision with each eye

kaheart [24]

Answer:

Depth Preception

Explanation:

Each eye sees a diffrent angle of a object. This is because the horizontal separation parallax of the eyes. If the object is close or near by the disparity will be huge.

Hope this helped you!

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3 years ago