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Dahasolnce [82]
3 years ago
6

PLEASE HELP 30 POINTS

Chemistry
1 answer:
ki77a [65]3 years ago
7 0

Answer:

balance for the 1st and mass for the 2nd

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Adakah benar anda tidak boleh mencuci rambut, minum air sejuk dan

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7 0
3 years ago
When aqueous solutions of AgNO 3 and KI are mixed, AgI precipitates. The balanced net ionic equation is ________. Ag (aq) I- (aq
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Answer:

Ag⁺(aq) + Cl⁻(aq) ==> AgCl(s)

Explanation:

The net ionic equation can be described as the equation that contains only those species which would be participated in the chemical reaction. The spectator ions are the type of the ions that are present in both sides of the chemical equation these ions could not be present in the net ionic equation

First, it is easiest if you write the compete molecular equation:

AgNO₃(aq) + KCl(aq) ⇔ AgCl(s) + KNO₃(aq)

we look up which compounds are soluble (aq) and which are not (s). In this case, silver chloride (AgCl) is not soluble.  Thus, the net ionic equation is...  

Ag⁺(aq) + Cl⁻(aq) ==> AgCl(s)

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3 years ago
If a Ferrari, with an initial velocity of 10 m/s, accelerates at a rate of 50 m/s/s for 3 seconds, what will its final velocity
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160 ms

Explanation:

3 0
2 years ago
Read 2 more answers
1. Describe how you can use the graduated cylinder to determine the volume of a small, irregularly-shaped metal. 2. What safety
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Explanation:

1.

i. Measure the initial volume of water in a graduated cylinder.

ii. Now submerge the irregularly shaped metal into water in a graduated cylinder.

iii. Measure the final volume of water.

iv. The difference between the final volume and the initial volume is the volume of the irregularly shaped metal.

2.

When adding the irregularly shaped metal into the glass graduated cylinder. Make sure that the irregularly shaped metal is completely submerged into the water.  

7 0
3 years ago
What will be the new volume of a 250 mL sample of gas at 300 K and 1 atm if heated to 350 K at 1 atm?
AlekseyPX

The   new volume of a 250  Ml   sample of gas at 300k  and  1atm  if  heated to 350 k  at  1 atm  is  291.67  Ml



<u>calculation</u>

This  is  solved  using  the  Charles  law formula  since the  pressure  is constant.

that is V1/T1 = V2/T2  where,

V1 =250 ml

T1=300  K

V2=?

T2= 350 k


by making V2 the subject   of  the formula  by  multiplying  both side by T2

V2= T2V1/T1

V2= (350 K x 250 ml) / 300K =291.67 Ml


5 0
3 years ago
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