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andre [41]
3 years ago
12

O Plz answer this plz plz plz

Chemistry
1 answer:
saul85 [17]3 years ago
3 0

Answer:

Q1. C

Q2 and Q3 are correct.

Explanation:

Since F=ma, and the force is a constant,

for the greatest acceleration, the mass of the ball must be the least.

Thus ball C has the greatest acceleration.

Let's check:

A) F=ma

a=F/m

a= F/68

B) a=F/72

C) a= F/64 (✓)

The smaller the denominator, the larger the value of a.

(Think: 1/2 >1/3)

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Soluble ionic compounds that dissociate naerly completely when dissolved are classified as _______.
Anettt [7]

The answer is D. Strong electrolytes

Strong electrolyte is a solute or solution that completely or almost  completely dissociates when in solution. These are good conductors of electricity only  when in molten/aqueous solution.

Strong electrolyte(aq) → Cation+(aq) + Anion−(aq)


6 0
2 years ago
If the volume of 1.00 mole of gas is tripled, what will happen to the pressure, if the temperature remains constant
Julli [10]

Answer:

The new pressure becomes one third of the initial pressure.

Explanation:

The relation between pressure and volume at constant temperature is given by :

P\propto \dfrac{1}{V}\\\\P=\dfrac{1}{V}

Let new pressure and volume be P' and V' respectively.

V'=3V (given)

So,

P'=\dfrac{1}{V'}\\\\=\dfrac{1}{3V}\\\\=\dfrac{1}{3}\times \dfrac{1}{V}\\\\P'=\dfrac{1}{3}\times P

Hence, new pressure becomes one third of the initial pressure.

8 0
2 years ago
Why should we take a baby aspirin everyday?
Mrac [35]
A lot of people take a low dose of aspirin every day to lower their risk of a further heart attack or stroke.
7 0
3 years ago
A 1 m ID spherical cooler made of 2 cm thick foam insulation (k = 0.15 Wm-1K-1) is used to store iced water at 0°C. The tank is
Leto [7]

The answer is unknown

3 0
3 years ago
Calcium hydroxide is titrated with nitric acid. What volume of 0.0200 M calcium hydroxide is required to neutralize 35.00 ml of
gogolik [260]

Answer:

43.75 ml

Explanation:

Given that the equation of the reaction is;

2HNO3(aq) + Ca(OH)2(aq) ---> Ca(NO3)2(aq) + 2 H20(l)

Concentration of acid CA= 0.05 M

Concentration of base CB = 0.02 M

Volume of acid VA = 35.00ml

Volume of base VB= ???

Number of moles of acid NA= 2

Number of moles of base NB=1

From

CAVA/CBVB= NA/NB

Making VB the subject of the formula;

VB= CAVANB/CBNA

VB= 0.05 × 35 × 1/ 0.02 × 2

VB=1.75 /0.04

VB= 43.75 ml

8 0
3 years ago
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