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Artyom0805 [142]
3 years ago
10

A rock is an

Chemistry
2 answers:
Gekata [30.6K]3 years ago
6 0

Answer:

mineral

Explanation:

OLga [1]3 years ago
6 0

Answer:

1. Aggregate

2). Color

3). Mineral

Explanation:

1. A rock is an aggregate of minerals

2. The color of a rock is a result of its minerals composition

3 most rocks contain more than one type of minerals

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Which statement best describes John Dalton’s use of creativity in his work?
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<span>The scientist thought that the atom was the smallest particle in the universe is John Dalton. He established the atomic theory which consists of five; elements are made of extremely small particles called atoms, atoms of different element have different sizes, mass and physic – chemical properties, atoms cannot be divided further, destroyed or created, atoms can combine to form compounds and in chemical reaction, atoms can be combined, separated or rearranged</span>
6 0
3 years ago
What is the mass in 6.34x10^23 molecules of calcium chloride
Liono4ka [1.6K]

Answer : The mass of calcium chloride is, 116.84 grams

Solution : Given,

Molar mass of calcium chloride, CaCl_2 = 110.98 g/mole

Number of molecules of calcium chloride = 6.34\times 10^{23}

As we know that,

1 mole of calcium chloride contains 6.022\times 10^{23} molecules of calcium chloride

or,

1 mole of calcium chloride contains 110.98 grams of calcium chloride

Or, we can say that

As, 6.022\times 10^{23} molecules of calcium chloride present in 110.98 grams of calcium chloride

So, 6.34\times 10^{23} molecules of calcium chloride present in \frac{6.34\times 10^{23}}{6.022\times 10^{23}}\times 110.98=116.84grams of calcium chloride

Therefore, the mass of calcium chloride is, 116.84 grams

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3 years ago
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Rus_ich [418]

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Multiple organisms may be affected by the loss of a plant species.

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A group of students is investigating whether copper is a better thermal conductor than aluminum. The students take a copper wire
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