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3 years ago

This is about rocks and/or minerals

Chemistry

2 answers:

Vitek1552 [10]3 years ago

8 0

Graphite is most likely to break apart with cleavage due to the fact that the carbon atoms in graphite,from sheets, could split easily in layers. Graphite had cleavage as the weak bonds in the layers can easily break. It’s unlikely to fracture as fractures usually break in jagged pieces. Atoms in graphite are arranged in layers.

vampirchik [111]3 years ago

5 0

I need the same answer

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How many grams of Mg(NO3)2 would be produced? please show how you got the answer

Len [333]

Answer:

148 grams of relative atomic mass

Explanation:

magnesium atomic mass : 24

nitrogen : 14

oxygen : 16

24 × 1

14 × 1 × 2

16 × 3 × 2

24 + 28 + 80 = 148 grams

7 0

3 years ago

What did you include in your hypothesis? Check all that apply.

Tcecarenko [31]

The following observation would be included in a hypothesis: a connection between type of material and thermal energy transfer is developed (option C).

<h3>What is a hypothesis?</h3>

Hypothesis is a tentative conjecture explaining an observation, phenomenon or scientific problem that can be tested by further observation, investigation and/or experimentation.

The hypothesis is regarded as an educated guess because it predicts the possible outcome of an experiment.

The hypothesis is a statement that relates the independent variable of the experiment with the measured or dependent variable.

Therefore, the following observation would be included in a hypothesis: a connection between type of material and thermal energy transfer is developed.

Learn more about hypothesis at: brainly.com/question/13025783

#SPJ1

5 0

2 years ago

Kendra conducts an experiment. She mixes two chemicals, resulting in a chemical reaction. Based on Kendra's

kondaur [170]

Answer: It changed in identity and properties.

Explanation:

3 0

3 years ago

If the CaCO3 weighed 983 g and the CaO weighed 551 g, how many grams of CO2 were formed in the reaction?

stira [4]

Answer:

The answer to your question is 432 g of CO₂

Explanation:

Data

CaCO₃ = 983 g

CaO = 551 g

CO₂ = ?

Balanced reaction

CaCO₃ (s) ⇒ CaO (s) + CO₂ (g)

This reaction is balanced, to solve this problem just remember the Lavoisier Law of conservation of mass that states that the mass of the reactants is equal to the mass of the products.

Mass of reactants = Mass of products

Mass of CaCO₃ = Mass of CaO + Mass of CO₂

Solve for CO₂

Mass of CO₂ = Mass of CaCO₃ - Mass of CaO

Mass of CO₂ = 983 g - 551 g

Simplification

Mass of CO₂ = 432 g

5 0

3 years ago

If lung problems like emphysema occur, the blood ph of the patient is expected to ________.

skelet666 [1.2K]

Decrease . because the natural ph of blood is 7.35 the neutral ph , diseases such as emphysema disrupts the ph causing it to become acidic .

3 0

3 years ago