What is true about matter? Check all that apply.

Chemistry

2 answers:

blondinia [14]3 years ago

8 0

Bruh what? You literally can’t see matterits really just invisible with atoms and stuff lol

larisa [96]3 years ago

7 0

Answer:

it is 1,5, and 6

Explanation: because it can be

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Good morning guys :)

Ipatiy [6.2K]

Answer:

good morning :D

Explanation:

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3 years ago

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Which substances will make a salt when combined? Vinegar and antacids Soda and wine Soap and ammonia Fertilizer and detergent

Mariulka [41]

Salt is usually formed during neutralization reactions, that is the reaction of an acid and a base. This is illustrated as follows:

HX + YOH --> XY + H2O

where XY is the salt

From the given choices, the only pair of acid and base is:

Vinegar and antacids

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3 years ago

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calculate the molar mass of nickel (iii)oxide to the nearest tenth place. Give both the numerial value and the units

maksim [4K]

Nickel (Ni) has the charge as +3 while oxygen (O) has -2. Hence, the chemical formula for the nickel (iii) oxide is Ni₂O₃.

molar mass of Ni = 58.69 g/mol
molar mass of O = 15.99 g/mol

number of Ni atoms in Ni₂O₃ = 2
Molar mass of Ni in Ni₂O₃ = 2 x 58.69 g/mol = 117.38 g/mol

number of O atoms in Ni₂O₃ = 3
Molar mass of O in Ni₂O₃ = 3 x 15.99 g/mol = 47.97 g/mol

Hence, molar mass of compound = 117.38 g/mol + 47.97 g/mol
= 165.35 g/mol
= 165.4 g/mol

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4 years ago

What volume of 1.75 M hydrochloric acid (HCl aq) must be diluted with water to prepare 0.500 L of 0.250 M hydrochloric acid?

Airida [17]

Answer:

$V_1=0.0714L$