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Jlenok [28]
3 years ago
15

Define molecular formula?​

Chemistry
1 answer:
Mademuasel [1]3 years ago
6 0

A molecular formula is an expression that states the number and type of atoms present in a molecule of a substance.

Example : H2O (water) There are 2 atoms of Hydrogen and 1 atom of Oxygen in this substance

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(GIVING OUT BRAINLIEST)<br> Compare and contrast the conditions required for snow and rain to form.
Vanyuwa [196]

Answer:

Snow forms when the atmospheric temperature is at or below freezing, and there is a minimum amount of moisture in the air. Within a cloud, water droplets condense onto one another, causing the droplets to grow. When these water droplets get too heavy to stay suspended in the cloud, they fall to Earth as rain

Explanation:

6 0
3 years ago
MS (R) Science 7 Q3 20-21
dimulka [17.4K]

Answer:

Molecules are made of two or more atoms

Molecules are made of atoms of the same element or different elements.

Molecules range in size.

Explanation:

A molecule is formed whenever two or more atoms combine. Hence we can define a molecule as a combination of two or more elements that are combined chemically and can not be separated by any physical means.

Molecules may be composed of the same atoms as in O2, F2 etc or different atoms as in CO2, H2O, etc.

The sizes of molecules differ. Some molecules are quite small in size while others are quite large in size.

5 0
3 years ago
Read 2 more answers
Which has a higher frequency electron or a neutron why ?
8_murik_8 [283]
The electron has a higher frequency compared to the neutron. It can be explained by the way an electron orbits the nucleus of an atom. 

According to Quantum Mechanics, electrons do not really orbit the nucleus of an atom. In fact, the most tightly bound state, the 1s orbital, has no angular momentum at all. This would be the state with the most "kinetic energy" and yet there is no "orbital" motion at all in this state.  

<span>However, there are frequencies associated with each orbital.</span>
5 0
3 years ago
1. What is the crime that Mr. Fraser describes ?
Lyrx [107]

Looking for evidence entails careful study. The answers to the question is below;

<h3>Evidence and Fact finding</h3>

The crime that Mr. Fraser describes is drive-by killing.

The police select their suspect by the act of showing pictures to one of the teenagers and thereafter they the suspect out, the suspect the saw that shoot the father.

The fact was that there was no evidence since they did not find the gun and the car used in the crime was not identified. Even the suspect vehicle (shooter) was not identified also.

The approximate figure is about 252 out of 367 cases of wrongful conviction have been identified. That is 69% of DNA exonerations. Others about 250-285 cases.

The National Registry of Exonerations has stated that about 450 non-DNA-based exonerations  where there was eyewitness misidentification. That is about 3 quarters have eye witness testimonies.

Reconstructive memory is simply known as the act of remembering that involves the reproduction of an experience or event that is known to be partially stored in memory before.

Fraser challenged the judge to go out and inspect the crime scene themselves.

The outcome of the challenge was that the judge thereby granted the retrial for Francisco Carrillo and thus released him so he can prepare his defense before the prosecution day.

Mr. Fraser suggested that people learn to be more effective with how they handle things or situations so as to get the right evidence and also that people be more cautious about how true some eyewitness testimonies may be.

Learn more about this case from

brainly.com/question/24612601

3 0
2 years ago
While studying chemical and physical changes, students added salt to a glass of water. They stirred the salt until it dissolved
nikklg [1K]
B. It's debatable if it's a physical or chemical change, because actual chemists don't have a hard distinction between the two.
3 0
4 years ago
Read 2 more answers
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