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Allisa [31]
3 years ago
7

Which unit would be most appropriate for measuring the mass of a black bean? kilograms or milligrams

Chemistry
2 answers:
tester [92]3 years ago
6 0

Answer:

B) Milligrams

Explanation:

just did the test on usatestprep

sleet_krkn [62]3 years ago
5 0

milligrams. kilograms are too big.

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In a galvanic cell, electrons are transferred from one half cell to the other as the redox reaction progresses.
tia_tia [17]

the two process that occur in a cell are

oxidation: this is loss of electron by electrode. the metal electrode loaes electrons and get oxidized and forms ions

the ions get migrated to solution


Reduction: here the ions present in solution gains electron and get deposited on electrodes.

so gain of electrons is by ions


electrode gains electrons is where reduction occurs, and the half cell in which the electrode loses electrons is where oxidation occurs.



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3 years ago
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Which option describes the behavior of energy in exothermic reactions?
jok3333 [9.3K]

Answer:

The energy of the products is less than the energy of the reactants, so energy is released into the surrounding environment.

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3 years ago
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Which part of the atom is involved in bonding?
bonufazy [111]

Answer:

Valence electrons (the electrons on the outermost shell of the atom) are responsible for bonding

Explanation:

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3 years ago
Stalactites and stalagmites form as ________ precipitates out of the water evaporating in underground caves.
Fittoniya [83]

Stalactites and stalagmites form as ________ precipitates out of the water evaporating in underground caves.

Group of answer choices

hydrochloric acid

sodium bicarbonate

calcium carbonate

sodium chloride

sodium hydroxide

Answer:

calcium carbonate

Explanation:

A stalactite is an icicle-looking mould that is formed by the precipitation of natural minerals as a result of water dripping from the ceiling, hanging from a cave.

A stalagmites in the other hand, grows upwards and is also a mound that is formed by the deposits of minerals gotten by the water dripping on the floor of a cave.

Therefore, stalactites and stalagmites form as calcium carbonate precipitates out of the water evaporating in underground caves.

4 0
2 years ago
Which unit conversion allows you to convert 21.0 gallons into milliliters?
Ulleksa [173]

Answer:

Explanation:

we are given

there are in 0.073 gallons

we can see that there are two non-zero places after decimals

so, there are two siginificant figures

step-1: Change gallons to quarts

we know that

1 gallon = 4 quarts

so, we can write as

step-2: Change into liter

we know that

1 liter = 1.057 quarts

or

step-3: Change into millilitre

we know that

Since, it is asking for only two significant figures

so, we can also write as

...................Answer

3 0
2 years ago
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