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natulia [17]
3 years ago
9

State two similarities between the modern day periodic table and Mendeleev’s table.

Chemistry
1 answer:
Marat540 [252]3 years ago
6 0
Arranged in groups and periods.
Group 1 in the same place.
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Classify each of the following equations as synthesis, decomposition, or replacement.
Sonja [21]

Answer: A. Is decomposition

B. Is synthesis where Na combines with Cl to form NaCl

C. Is single displacement or replacement. Mg displaces Cu.

Explanation:

7 0
3 years ago
Drag each label to the correct location on the image.
kap26 [50]

Answer:

1.Products

2.Reactants

3.Activation

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3 years ago
What is the difference between covalent bonds and ions
Korvikt [17]
Ionic bonds have high emelting point amf boiling point while covale t bonds have low melting point and boiling point.
ionic bonds cannot conduct electricity in solid state but can conduct in the molten state or when dissolves in water. while covalent bonds cannot conduct electricity in any state.
ionic bonds are soluble in water but insoluble in organic solvents while most covalent bonds are soluble in organic solvents but insoluble in water
8 0
3 years ago
What does it mean that something is a conservative ion?
mario62 [17]

Answer:

The major ionic constituents whose concentrations can be determined from the salinity are known as conservative substances. Their constant relative concentrations are due to the large amounts of these species in the oceans in comparison t

5 0
3 years ago
An isopropyl solution contains 70 ml of isopropyl alcohol in 1.8 L of water. What is the percent by volume of the alcohol
xenn [34]

Answer:

3.74%

Explanation:

We express a solution's volume by volume percent concentration, % v/v,

Take the ratio of the isopropyl alcohol (IPA) volume to the total volume of the solution, which is 1800 mL of water+ 70 mL of IPA,

and multiply by 100 to get the percentage:   70/(1800+70) *100 = 0.0374*100 =  3.74%

5 0
3 years ago
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