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Scientific Methods

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Anonymous

Jan 06, 2025

In heating a kettle of water on an electric stove, 3.34 x 10^4 J of thermal energy was provided by the element?

In heating a kettle of water on an electric stove, the heating element provided 3.34 x 10^4 J of thermal energy. However, the water in the kettle only absorbed 5.95 x 10^2 J of thermal energy. Calcula...
3 answers 15
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Anonymous

Dec 15, 2024

In the formula XF2, the element represented by x can be classified as…?

In the formula XF₂, the element represented by X can be classified as which of the following: Group 1 metal Group 2 metal Group 1 non-metal Group 2 non-metal Could someone please provide an...
1 answers 13
M

In the lecture, the first supporting detail, which defines Science, is

In the lecture, what is the first supporting detail provided that defines the concept of science?
2 answers 40
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Anonymous

Jan 03, 2025

In the respiration equation, does energy act as a reactant or a product?

In the context of the respiration equation, does energy function as a reactant or a product? Please provide an explanation for your answer.
10 answers 29
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Anonymous

Dec 11, 2024

Is 1 mL = 1 cm3 (that’s cm cubed)?

My chemistry professor mentioned that 1 liter (L) equals 1 cubic decimeter (dm³), which is also equal to 1000 cubic centimeters (cm³) and 1000 milliliters (mL). Based on this, does it mean that 1 cm³...
9 answers 14
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Anonymous

Jan 29, 2025

Number of Unpaired Electrons in Groups?

How many unpaired electrons are present in the ground state of an atom from each of the following groups? Please enter the numbers in order, from (a) to (d), in the answer boxes provided. All four num...
1 answers 27
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Anonymous

Oct 29, 2024

Place the ions in order of decreasing size. Te2-, I-, Cs+, Ba2+, La3+?

I would like to clarify the order of ion sizes for the following ions: Te²⁻, I⁻, Cs⁺, Ba²⁺, and La³⁺. I initially proposed the following order from largest to smallest: Te²⁻ > I⁻ > Cs⁺ > Ba²⁺...
1 answers 13
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Propane bond angle increase?

The observed bond angle in the C-C-C bond of propane is 111.66 degrees. Can someone explain why the bond angle in propane is not 109.5 degrees? I am having difficulty understanding the reason for this...
5 answers 49
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Anonymous

Feb 18, 2025

Rays from the sun are not considered matter true or false

Are rays from the sun considered matter? Please answer true or false.
1 answers 39
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Anonymous

Dec 04, 2024

Read the passage about bird food and bird watching. Noted scientist Dr. Elsa Birde described the effect of adding a mixture of dried

Read the passage about bird food and bird watching. Noted scientist Dr. Elsa Birde described the effect of adding a mixture of dried apples and raisins to her previous feed of sunflower seeds, millet,...
5 answers 60