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4 years ago

Will an object with a net force of zero acting on it move? Explain why or why not

Chemistry

1 answer:

Vesnalui [34]4 years ago

8 0

Answer:

If the object was already moving, then it will just keep moving. So, yes, the object can be moving when there is no force applied to it. Note: "force" in this discussion is to be interpreted as net force. Net force is the vector sum of all forces acting on the object.

Explanation:

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Zinc metal can be obtained from Zinc Oxide by reaction at high temperature with CO. The CO is obtained from burning C in limited

bonufazy [111]

Answer:

(a): 2ZnO(s) -----------> 2Zn(s) + O2(g)

2C(s) + O2(g) ---------> 2CO(g)

(b): ZnO(s) + C(s) ---------> Zn(s) + CO(g)

3 0

3 years ago

A block of pine wood has a mass of 120 g and a volume of 300 cm3. What is the density of wood? (Show your work)

Zielflug [23.3K]

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume}$

From the question

mass of wood = 120 g

volume = 300 cm³

So the density of the wood is

$density = \frac{120}{300} \\ = \frac{12}{30} = \frac{2}{5}$

We have the final answer as

Hope this helps you

5 0

3 years ago

if you had 16 tiles and each tile cost 80 cents how much change would you dmget back if you paid with 2 100 bills

olasank [31]

16 tiles x 0.80 = $12.80

If you have two 100 dollar bills, you have 200 dollars.

$200 - $12.80 = $187.20

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4 years ago

Select a depiction of a gas sample, as described by kinetic molecular theory, containing equal molar amounts of helium, neon, an

VLD [36.1K]

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3 years ago

Write a balanced net ionic equation for the reaction of aqueous solutions of baking soda (NaHCO3) and acetic acid.(A) HCO3–(aq)

IgorC [24]

<u>Answer:</u> The correct answer is Option C.

<u>Explanation:</u>

Net ionic equation of any reaction does not include any spectator ions.

Spectator ions are defined as the ions which does not get involved in a chemical equation. They are found on both the sides of the chemical reaction when it is present in ionic form.

The chemical equation for the reaction of sodium bicarbonate and acetic acid is given as:

$NaHCO_3(aq.)+CH_3COOH(aq.)\rightarrow CH_3COONa(aq.)+H_2O(l)+CO_2(g)$

Ionic form of the above equation follows:

$Na^+(aq.)+HCO_3^-(aq.)+CH_3COO^-(aq.)+H^+(aq.)\rightarrow CH_3COO^-(aq.)+Na^+(aq.)+H_2O(l)+CO_2(g)$

As, sodium and acetate ions are present on both the sides of the reaction. Thus, it will not be present in the net ionic equation and are spectator ions.

The net ionic equation for the above reaction follows:

$HCO_3^-(aq.)+H^+(aq.)\rightarrow CO_2(g)+H_2O(l)$

Hence, the correct answer is Option C.

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3 years ago