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kondaur [170]
3 years ago
6

The rows of the periodic table are called groups because similar elements reside next to each other on the modern periodic table

.
True
False​
Chemistry
2 answers:
KIM [24]3 years ago
4 0

Answer:

True

Explanation:

They are called by thier names

forsale [732]3 years ago
3 0

Answer:

True

Explanation:

The vertical columns on the periodic table are called groups or families because of their similar chemical behavior. All the members of a family of elements have the same number of valence electrons and similar chemical properties. The horizontal rows on the periodic table are called periods.

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You dissolve 14 g of Mg(NO3)2 in water and dilute to
mart [117]

Answer:

0.127M

Explanation:

Molarity of a solution = number of moles (n) ÷ volume (V)

Molar mass of Mg(NO3)2 = 24 + (14 + 16(3)}2

= 24 + {14 + 48}2

= 24 + 124

= 148g/mol

Using the formula, mole = mass/molar mass, to convert mass of Mg(NO3)2 to mole

mole = 14g ÷ 148g/mol

mole = 0.095mol

Volume = 750mL = 750/1000 = 0.75L

Molarity = 0.095mol ÷ 0.75L

Molarity = 0.127M

3 0
3 years ago
What net force is required to push a sofa with a mass of 59 kilograms so that it accelerates at 9.75 meters/second^2
Tresset [83]
Force = Mass * Acceleration = 59 kg * 9.75 m/s^2 = 575.25 N
6 0
3 years ago
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How does littering affect air pollution?
MrMuchimi
When you litter,
the trash can go into the ocean, and a fish could think of it as food, eat it, suffocate and die,
Same thing for land (but no ocean)
8 0
3 years ago
Read 2 more answers
2. Explain Why would it be difficult to find the volume of a rock using<br> a ruler?
dedylja [7]

Answer:

Most of these rocks are not made up of common geometric shapes

Explanation:

Because most rocks are not made up of common geometric shapes, it would be difficult or impossible to find the volume of a rock using a ruler; there would be no easy way to measure the rock's volume using a ruler

Hope this helped!

8 0
3 years ago
Which best describes a compound such as sodium
tresset_1 [31]
<span>a pure substance that can be separated into different elements by chemical means</span>
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