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2 years ago

Deep Space 2 was a spacecraft powered by an engine that gave off xenon partides to change

Chemistry

1 answer:

aleksklad [387]2 years ago

5 0

Answer:

a = F/m

a = 0.10 N/500 Kg

Explanation:

Definition:

The acceleration is rate of change of velocity of an object with respect to time.

Formula:

a = Δv/Δt

a = acceleration

Δv = change in velocity

Δt = change in time

Units:

The unit of acceleration is m.s⁻².

Acceleration can also be determine through following formula,

F = m × a

a = F/m

Given data:

Mass = 500 Kg

Force = 0.10 N

Acceleration = ?

Solution:

a = F/m

a = 0.10 Kg.m.s⁻²/500 Kg

a = 0.0002 m.s⁻²

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In which species does phosphorous have the highest oxidation number?

nignag [31]

the compounds in which phosphorous posses the highest possible oxidation have to mention here.

The species in which phosphorous have the highest oxidation state are: H₃PO₄, P₂O₅, PCl₅

The possible oxidation state of phosphorous is III and V. The highest oxidation state is V. There are several compounds in which phosphorous posses the +5 oxidation state. Like- Phosphoric acid (H₃PO₄), phosphorous pentoxide (P₂O₅), Phosphorous chloride (PCl₅) etc.

The oxidation state of an element depends upon the valence electron the valence shell of phosphorous is 3s² 3p³. Thus there are 5 electrons, as it has vacant 3d orbital thus it can easily form compound having +5 oxidation state.

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2 years ago

Write the balanced neutralization reaction that occurs between h2so4 and koh in aqueous solution. Phases are optional.

Nutka1998 [239]

Answer:

The answer to your question is below

Explanation:

H₂SO₄ = sulphuric acid

KOH = potassium hydroxide

This is a neutralization reaction

H₂SO₄ + 2 KOH ⇒ K₂SO₄ + 2H₂O

2 ----------- K ----------- 2

1 ----------- S ---------- 1

4 ---------- H --------- 4

6 ------------ O ---------- 6

4 0

2 years ago

What is an internal cost of driving a domestic car?

Nataly_w [17]

Answer:

The correct option is: Cost of materials used in manufacture

Explanation:

There are two types of costs of an object: the internal costs and the external costs.

The internal cost of an object is the direct monetized cost. It refers to the cost involved in the production or manufacturing of a given object. Example: labor, material required, equipment, energy, and overhead expenses.

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2 years ago

In which reaction does the oxidation number of hydrogen change? In which reaction does the oxidation number of hydrogen change?

dedylja [7]

Answer: The correct answer is $2Na(s)+2H_2O(l)\rightarrow 2NaOH(aq.)+H_2(g)$

Explanation:

Oxidation number is defined as the number which is given to an atom when it looses or gains electron. When an atom looses electron, it attains a positive oxidation state. When an atom gains electron, it attains a negative oxidation state.

Oxidation state of the atoms in their elemental state is considered as 0. Hydrogen is present as gaseous state.

For the given chemical reactions:

Reaction 1: $2HClO_4(aq.)+CaCO_3(s)\rightarrow Ca(ClO_4)_2(aq.)+H_2O(l)+CO_2 (g)$