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mr Goodwill [35]
2 years ago
12

does anyone know the three answers Question 1 which element is in group 5 period 2?, question 3 which element is in group 6 peri

od 2?, question 4 which element is in group 8 period 1? this IPC it is both Integrated Physics and Chemistry
Chemistry
2 answers:
MrRa [10]2 years ago
4 0

Explanation:

1. Nitrogen

3. Oxygen

4. Helium

trapecia [35]2 years ago
3 0

look into the periodic system

question 1: nitrogen

question 3: oxygen

question 4: helium

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Yuliya22 [10]
Muscles bones no on organs and no on skin
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3 years ago
At the beginning of an experiment, a scientist has 176 grams of radioactive goo. After 165 minutes, her sample has decayed to 5.
Paul [167]
The half-life equation is written as:

An = Aoe^-kt

We use this equation for the solution. We do as follows:

5.5 = 176e^-k(165)
k = 0.02
<span>What is the half-life of the goo in minutes? 
</span>
0.5 = e^-0.02t
t = 34.66 minutes <----HALF-LIFE


Find a formula for G(t) , the amount of goo remaining at time t.G(t)=? 

G(t) = 176e^-0.02t

How many grams of goo will remain after 50 minutes? 

G(t) = 176e^-0.02(50) = 64.75 g
6 0
3 years ago
If the volume of a solid is 100cm^3 and its mass is 400 g, what is it’s density
Aleksandr-060686 [28]

Answer:

The answer to your question is: density = 4 g/cm³

Explanation:

Data

Volume = 100 cm³

Mass = 400 g

Density = ?

Formula

density = mass/volume

substitution

density = 400/100 = 4 g/cm³

4 0
3 years ago
Ascorbic acid, or vitamin C (C6H8O6, molar mass = 176 g/mol), is a naturally occurring organic compound with antioxidant propert
Rus_ich [418]

Answer:

The quantity of ascorbic acid found in sweet lime of 49.6 mg does not meet the daily requirement.

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To determine the mass of ascorbic acid knowing the number of moles we use the following formula:

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mass = number of moles × molecular weight

mass of ascorbic acid = 2.82 × 10⁻⁴ × 176

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daily requirement of ascorbic acid = 70 - 90 mg

The quantity of ascorbic acid found in sweet lime of 49.6 mg does not meet the daily requirement.

6 0
3 years ago
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What percentage of the filtrate's water that enters bowman's capsule is reabsorbed into the blood? select one:
maksim [4K]
99% of the filtrate's water that enter bowman's capsule is reabsorbed into the blood. This is because the water and the salts contained in the filtrate are needed for optimal functioning of the body system. 
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3 years ago
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