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bonufazy [111]
3 years ago
6

13. Find the total number of atoms present in the following molecules. a. 5 H₂O b. Zn Cl₂​

Chemistry
1 answer:
elena55 [62]3 years ago
6 0

Answer:

a.5H 2O−15

b.ZnCl 2−3

this is right answer

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Copy and Complete these sentences to describe how particles are arranged in solids, liquids, and gases.
creativ13 [48]

Answer:

soilds - close together  arranged in a regular way

liquids - close together  arranged in a random way

gases - far apart  arranged in a random way

Explanation:

8 0
3 years ago
Select the correct answer. which tool is used to measure an object’s mass? a. graduated cylinder b. meter stick c. digital therm
zavuch27 [327]

The tool or instrument which is used to measure an object’s mass is electronic balance

Mass is a fundamental quantity

<h3>What is fundamental quantities?</h3>

Fundamental quantities can be defined as those physical quantities which forms the basic unit of measurement. They are the quantities upon which other quantities and units are derived from.

Mass is measured in kilograms (kg)

Other examples of fundamental quantities apart from mass are as follows:

  • Length
  • Time
  • Amount of substances
  • Luminous intensity
  • Temperature
  • Magnetic flux

So therefore, the tool or instrument which is used to measure an object’s mass is electronic balance

Learn more about fundamental/physical quantities:

brainly.com/question/23036403

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6 0
2 years ago
The table below shows the number of sub-atomic particles in an atom of magnesium.
Fittoniya [83]

Answer:

24

Explanation:

7 0
3 years ago
What happens to an atom if it loses an electron?
jolli1 [7]

Answer:

When an atom loses electron(s) it will lose some of its negative charge and so becomes positively charged. A positive ion is formed where an atom has more protons than electrons. In the opposite case when an atom gains electron(s) it becomes negatively charged (more electrons than protons).

Explanation:

7 0
3 years ago
What is determined by calculating the slope of the position vs time graph?
vova2212 [387]

Answer: Velocity

Explanation:

4 0
3 years ago
Read 2 more answers
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