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Vitek1552 [10]
3 years ago
7

Velocity is a vector quantity.Why?​

Chemistry
1 answer:
Alika [10]3 years ago
3 0

Answer:

Has size and magnitude whereas a scalar quantity has only size

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Which substance below is resonance stabilized by delocalized pi electrons?
mariarad [96]
If you do not this, I suggest brushing up on delocalization as well as sigma/pi bonds. Benzene is the only one of the 5 with any pi bonds, so this should be a relatively easy question if you are familiar with the concepts. I would search up a detailed (not to detailed though) explanation of both.
8 0
3 years ago
Write the 1 g equivalents using the following prefixes: (a) mega−, (b) kilo−, (c) deci−, (d) centi−, (e) milli−, (f) micro−, (g)
dem82 [27]

<u>Explanation:</u>

Unit is defined as the quantity that is used as a standard for measurement.

S.I. unit of mass of kilograms. Other units in which mass of a substance can be measured are grams, milligrams, etc...

All these units are inter convertible.

  • <u>For a:</u> Mega-

The conversion factor used is:

1g=10^{-6}Mg

  • <u>For b:</u> kilo-

The conversion factor used is:

1g=10^{-3}kg

  • <u>For c:</u> deci-

The conversion factor used is:

1g=10dg

  • <u>For d:</u> centi-

The conversion factor used is:

1g=10^{3}cg

  • <u>For e:</u> milli-

The conversion factor used is:

1g=10^3mg

  • <u>For f:</u> micro-

The conversion factor used is:

1g=10^6\mu g

  • <u>For g:</u> nano-

The conversion factor used is:

1g=10^9ng

  • <u>For h:</u> pico-

The conversion factor used is:

1g=10^{12}pg

8 0
3 years ago
What is the evidence of a chemical reaction when the fireworks go off
Mnenie [13.5K]
When fireworks go off, they produce smoke, which is evidence of a new substance being created.

6 0
4 years ago
Using the word bank explain why increasing the temperature increases the rate of reaction​
katrin2010 [14]

Answer:Increasing the temperature increases reaction rates because of the disproportionately large increase in the number of high energy collisions. It is only these collisions (possessing at least the activation energy for the reaction) which result in a reaction.

Explanation:

5 0
3 years ago
When determining an element’s chemical properties, the most important subatomic particle to look at is
Crank

Answer:

Electrons

Explanation:

When determining the chemical properties of elements, the most important subatomic particle to consider is the electrons.

Electrons are negatively charged particles that orbits an atom. They occupy the extranuclear space of an atom.

These electrons determines the chemical properties of each atom. Most especially, the valence ones. All elements wants to resemble the noble gases, so they alter their number of electrons in order to attain this stable state.

8 0
3 years ago
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