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Marrrta [24]
3 years ago
5

In what month does winter begin in the southern hemisphere

Chemistry
2 answers:
Katyanochek1 [597]3 years ago
7 0

In the Southern Hemisphere this would be around June 20 and culminates on September 22.

ruslelena [56]3 years ago
3 0

Winter begins in June and ends in September

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Will Rb and I form an iconic or covalent bond?
sergeinik [125]

Answer:

Most compounds of Rubidium are formed by ionic bonds.

Explanation:

8 0
3 years ago
Which of the following does not correctly describe Sn2 reactions of alkyl halides? A) The mechanism consists of a single step wi
Rashid [163]

Answer:

The correct answer is B the tertiary halides reacts faster than primary halides.

Explanation:

During SN2 reaction the nucleophile attack the alkyl halide from the opposite side resulting in the formation of transition state in which a bond is not completely broken or a new bond is not completely formed.

   After a certain period of time the nucleophile attach with the substrate by substituting the existing nuclophile.

  An increase in the bulkiness in the alkyl halide the SN2 reaction rate of that alkyl halide decreases.This phenomenon is called steric hindrance.

  So from that point of view the that statement tertiary halides reacts faster that secondary halide is not correct.

7 0
3 years ago
A gas has a volume of 1.22L at 179K. Once heated, the same gas now has a volume of 6.1L at 285K and 1.34atm. What was the origin
sergiy2304 [10]
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5 0
3 years ago
If an atom has 5 protons and 6 neutrons how many electrons does it have? What would the mass of this atom be?
zysi [14]

Answer:

<em>Mass number = protons + neutron</em>

<em />

<em>The mass number of an element is the sum of the protons and neutrons. The number of neutrons for a given element is the only number that can change and still have the identity of the element stay the same, (because the atomic number is the number of protons). </em>

<em> </em>

<em>In this case the mass number would be 11</em>

HOPE THIS HELPS!!!

6 0
3 years ago
Arranges the following molecules in order of increasing dipole moment: <br> H2O, H2S, H2Te, H2Se.
erastova [34]

Explanation:

Dipole moment is defined as the measurement of the separation of two opposite electrical charges.

H_{2}O is a bent shaped molecule with a dipole moment of 1.87.

H_{2}S is also a bent shaped molecule with a dipole moment of 1.10.

H_{2}Te is a also a bent shaped molecule and has a negligible dipole moment.

H_{2}Se has a dipole moment of 0.29.

Therefore, given molecules are arranged according to their increasing dipole moment as follows.

        H_{2}Te < H_{2}Se < H_{2}S < H_{2}O

7 0
4 years ago
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