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3 years ago

A chemical ________ involves one or more reactants changing into new products.

Physics

2 answers:

Karo-lina-s [1.5K]3 years ago

8 0

Answer: Reaction

Explanation:

A chemical reaction is a process in the ionic structure of a substance is rearranged by the interaction of reactants such that its now distinct from its original physical form causing a nuclear reaction. It is basically a scenario in which two or more substances combine to form a new substance

Damm [24]3 years ago

3 0

A chemical reaction involves one or more reactants changing into new products

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Help with question 16 and 17

storchak [24]

Your answer is correct.

___

The fractional change in resistance is equal to the given temperature coefficient multiplied by the change in temperature.

R = R₀×(1 + α×ΔT)

R = (10.0 Ω)×(1 + 0.004×(65 -20)) = 11.8 Ω

5 0

3 years ago

Daffy Duck is standing 6.8 m away from Minnie Duck. The attractive gravitational force between them is 5.4x10-8 N. If Daffy Duck

artcher [175]

Answer:

432.78 Kg

Explanation:

From the question given above, the following data were obtained:

Distance apart (r) = 6.8 m

Force of attraction (F) = 5.4×10¯⁸ N

Mass of Daffy Duck (M₁) = 86.5 kg

Mass of Minnie Duck (M₂) =?

NOTE: Gravitational constant (G) = 6.67×10¯¹¹ Nm²/Kg²

The mass of Minnie Duck can be obtained as follow:

F = GM₁M₂ / r²

5.4×10¯⁸ = 6.67×10¯¹¹ × 86.5 × M₂ / 6.8²

5.4×10¯⁸ = 6.67×10¯¹¹ × 86.5 × M₂ / 46.24

Cross multiply

6.67×10¯¹¹ × 86.5 × M₂ =5.4×10¯⁸ × 46.24

Divide both side by 6.67×10¯¹¹ × 86.5

M₂ = 5.4×10¯⁸ × 46.24 / 6.67×10¯¹¹ × 86.5

M₂ = 432.78 Kg

Therefore, the mass of Minnie Duck is 432.78 Kg

8 0

3 years ago

The law of conservation of matter states that matter can neither be created nor destroyed. How is the law of conservation of mat

FromTheMoon [43]

<span>The law of conservation of matter and energy relates to the cycles in nature, and by that it is also applied to rocks and other materials. All of the rock in the Earth is recycled and accounted for during the rock cycle. Rocks experience physical change, the composition of the material stays the same, it may just change how it looks and chemical changes occur (the suubstance undergoes a chemical reaction that changes the actual makeup of the substance).</span>

4 0

3 years ago

How many electrons must be remowel from an electricaly Nurutral Silvor Coin to five it a charge of 3.2 NC ?

kakasveta [241]

Answer:

#_electrons = 2 10¹⁰ electrons

Explanation:

For this exercise we can use a direct rule of three proportions rule. If an electron has a charge of 1.6 10⁻¹⁹ C how many electrons have a charge of 3.2 10⁻⁹ C

#_electrons = 3.2 10⁻⁹ ( $\frac{1}{1.6 \ 10^{-19}}$ )

#_electrons = 2 10¹⁰ electrons

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3 years ago

A player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. How far did t

Furkat [3]

What are your answers?

3 0

3 years ago

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