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pishuonlain [190]
3 years ago
14

Select the correct answer.

Chemistry
1 answer:
AveGali [126]3 years ago
6 0

Answer: your answers are between d or b

Explanation:

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Sub-atomic particles like negatively charged electrons, positively charged
leonid [27]

Answer:

neutral

Explanation:

There are three basic subatomic particles. These are;

  1. Protons (positively charged)
  2. Electrons (negatively charged)
  3. Neutrons (neutral)

A neutron has no charge unlike the proton and the electron. It is present in the nucleus and contributes to the mass of the atom.

8 0
2 years ago
How many moles of calcium atoms are in 77.4g of Ca?
lina2011 [118]

Answer:

1.93 mol Ca

Explanation:

Use Calcium's molar mass to convert g of Ca into mol of Ca.

6 0
2 years ago
the element weighed 3.555 grams when it was burned in oxygen an oxide compound was produced. the product mass was 4.666 grams. W
vodka [1.7K]
Idk really but i hope you figure out the answer im not on that yet.
6 0
3 years ago
A characteristic feature of any form of chromatography is the ________.a. calculation of an Rf value for the molecules separated
podryga [215]

Answer : The correct option is, (c) use of a mobile and a stationary phase.

Explanation :

Chromatography : It is a separation process or technique of a mixture in which a mixture is distributed between the two phases at different rates, one of which is stationary phase and another is mobile phase.

Mobile phase : The mixture is dissolved in a solution is known as mobile phase.

Stationary phase : It is an adsorbent medium and It is a solid, liquid or gel that remains immovable when a liquid or a gas moves over the surface of adsorbent. It remains stationary.

Hence, a characteristic feature of any form of chromatography is the use of a mobile and a stationary phase.

4 0
3 years ago
What is an atom? the smallest particle of matter a piece of an element the smallest molecule in the universe a combination of pr
pickupchik [31]
The answer for this question is the smallest particle of matter.
5 0
3 years ago
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