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3 years ago

Write in standard notation: 3.2x 103

Chemistry

1 answer:

Anni [7]3 years ago

4 0

Answer:

3.2

10×10×10

=1000

so 3.2×1000

=3200

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Determine the net iconic equation for the following chemical reaction: HCl(aq) + NH4OH(aq)———-> NH4Cl(aq) + H2O(I) Hint: HCl(

katen-ka-za [31]

Answer : The net ionic equation will be,

$H^{+}(aq)+OH^{-}(aq)\rightarrow H_2O(l)$

Explanation :

In the net ionic equations, we are not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

The given balanced ionic equation will be,

$HCl(aq)+NH_4OH(aq)\rightarrow NH_4Cl(aq)+H_2O(l)$

The ionic equation in separated aqueous solution will be,

$H^+(aq)+Cl^-(aq)+NH_4^+(aq)+OH^-(aq)\rightarrow H_2O(l)+NH_4^+(aq)+Cl^-(aq)$

In this equation, $NH_4^+\text{ and }Cl^-$ are the spectator ions.

By removing the spectator ions from the balanced ionic equation, we get the net ionic equation.

The net ionic equation will be,

$H^{+}(aq)+OH^{-}(aq)\rightarrow H_2O(l)$

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3 years ago

What is the momentum of a cat of mass 4 kg that is running south with a speed of 1.5 m/s?

Ulleksa [173]

Answer:

option B is correct

Explanation:

momentum(p)=mv

mass= m=4 kg

velocity=v=1.5 m/s

P=4kg*1.5 m/s=6.0 kg.m/s

so option B is correct

3 0

3 years ago

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What is the name of the compound CaCo3

ddd [48]

The compound is calcium carbonate

4 0

2 years ago

In which of these do you need to know the direction in which the object is moving?

Allisa [31]

Answer:

velocity

Explanation:

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3 years ago

Choose the thermochemical equation that illustrates ΔH°f for Li2SO4. Choose the thermochemical equation that illustrates ΔH°f fo

Deffense [45]

Answer:

2Li(s) + ⅛S₈(s, rhombic) + 2O₂(g) → Li₂SO₄(s)

Explanation:

A thermochemical equation must show the formation of 1 mol of a substance from its elements in their most stable state,.

The only equation that meets those conditions is the last one.

A and B are wrong , because they show Li₂SO₄ as a reactant, not a product.

C is wrong because Li⁺ and SO₄²⁻ are not elements.

D is wrong because it shows the formation of 8 mol of Li₂SO₄.

8 0

3 years ago

Write in standard notation: 3.2x 103​

Write in standard notation: 3.2x 103