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Dafna11 [192]
3 years ago
12

When the bromine atom becomes an anion, it ______ in size.

Chemistry
1 answer:
GenaCL600 [577]3 years ago
3 0

Explanation:

Anions and cations have different atomic sizes than the neutral atoms.

When the bromine atom becomes an anion, it ______ in size.

Anions involves gaining extra electrons. This basically leads to increased repulsion between the electrons and thereby increasing the size. Anions are always larger than the neutral atoms.

This means the answer is A. Increase

When the strontium atom becomes a cation, it ______ in size.

Cations involves losing valence electrons. This basically leads to a decrease in electron shells and electron repulsion thereby reducing the size. Cations are always larger than the neutral atoms.

This means the answer is B. Decrease

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Predict the shape of the molecule.
GuDViN [60]

Number of electron pairs = \frac{1}{2}[V+N-C+A]

2

1

[V+N−C+A]

V = number of valence electrons present in central atom

N = number of monovalent atoms bonded to central atom

C = charge of cation

A = charge of anion

SbCl_5SbCl

5

:

In the given molecule, antimony is the central atom and there are five chlorine as monovalent atoms.

The number of electron pairs are 5 that means the hybridization will be sp^3dsp

3

B and geometry of the molecule will be trigonal bipyramidal.

6 0
2 years ago
Is mass conserved when 50 g of sugar undergoes a physical change?
Lena [83]
Yes, mass never changes. No exceptions.
6 0
3 years ago
Read 2 more answers
Carboplatin (C6H12N2O4Pt) is a platinum-containing compound that is used to treat certain forms of cancer. This compound contain
givi [52]

Answer:

The answer to your question is:  $ 35.6

Explanation:

C₆H₁₂N₂O₄Pt

Platinum = 52.5 %

Price = $1047 / troy ounce

cost of platinum = ? of 2 g

1 troy ounce = 480 grains

1 grain = 64.8 mg

Process

Get 52.5 % of 2 g

                               2 g -----------------  100 %

                               x     -----------------  52.5%

                              x = (52.5 x 2) / 100

                              x = 1.05 g

                               1 g --------------------- 1000 mg

                               1.05 g ----------------   x

                               x = 1050 mg of Pt

                               1 grain ---------------- 64.8 mg

                              x            ---------------  1050 mg

                              x = 16.2 grains

                              480 grains ---------------- 1 troy ounce

                              16.2 grains ----------------   x

                               x = (16.2 x 1) / 480

                                x = 0.034 troy ounce

                              $ 1047 ------------------  1 troy ounce

                                x        -------------------  0.034

                                x = (0,034 x 1047) / 1

                                x = $ 35.6

3 0
3 years ago
Where is the genetic code located again in the dna molecule again?
Pie

Answer:

The DNA is in the nucleus.

Explanation:

The nucleus is the power house of the cell, the little sting things inside are the strands of DNA.

8 0
3 years ago
How many grams of solute are needed to make 37.5 mL of 0.750 M KI solution? Round to three significant digits.
Marysya12 [62]

4.648 gm of solute is needed to make 37.5 mL of 0.750 M KI solution.

Solution:  

We will start with the Molarity  

\text { Molarity }=\text { Mole of solute } \div \text { liter of solution }

Also we know 1000 ml = 1 L

Therefore 37.5 ml by 1000ml we obtained 0.0375L  

Equation for solving mole of solute

\text { Mole of solute }=\text { Molarity } \times \text { Liters of solution }

Now, multiply 0.750M by 0.0375

Substitute the known values in the above equation we get

0.750 \times 0.0375=0.0281

Also we know that Molar mass of KI is 166 g/mol

So divide the molar mass value to get the no of grams.

0.028 \times 166=4.648

So 4.648 gm of Solute is required for make 37.5 mL of 0.750 M KI solution.

8 0
3 years ago
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