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3 years ago

13

You want to test how the mass of a reactant affect the speed of a reaction which of the following is an example of a controlled

experiment to test this

1 answer:

emmainna [20.7K]3 years ago

6 0

Answer:A

Explanation:

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A scientist adds 46.3 J of heat to a 13.4g sample of an unknown substance. the temperature increases by 1.40 celsius. What is th

Lelu [443]

Answer:

number b Aluminium

Explanation:

aluminium is the answer

8 0

3 years ago

Given the incomplete equation 4Al + 3O2 → 2X, what compound is X?

Sever21 [200]

<h3><u>Answer</u>;</h3>

B) Al2O3

<h3><u>Explanation;</u></h3>

Aluminium reacts with oxygen to form aluminium oxide.

The chemical reaction for the reaction between Aluminium and Oxygen is;

4Al+ 3O₂→ 2Al₂O₃

Therefore;

Compound X is Aluminium oxide (Al₂O₃)

8 0

4 years ago

Read 2 more answers

What type of solution is formed if 10 g of kclo3 are dissolved in 100g of water at 30

inessss [21]

Answer:

Saturated solution.

Explanation:

Kindly see the attached image, the curve with brown line is for KClO₃, and according to the curve at 30 °C the solubility of KClO₃ per 100 g of water is 10 g.

So, 10.0 g of KClO₃ forms a saturated solution.

5 0

3 years ago

A golfer hits a golf ball with a club. The mass of the ball is 0.05 kg. The ball accelerates at 2,000 m/s2. What is the net forc

Tom [10]

Answer:

B= 100 N

Explanation:

Given data:

Mass of ball = 0.05 Kg

Acceleration of ball = 2000 m /s²

Net force = ?

Solution:

Formula:

F = ma

F = force

m = mass

a = acceleration

By putting values,

F = 0.05Kg × 2000 m/s²

N = Kgm/s²

F = 100 N

5 0

3 years ago

The amount of heat absorbed when 5.5g of aluminum is heated from 25.0c to 95.0c the specific heat of aluminum is 0.897J/(gc)

NemiM [27]

Answer:

Q=21.99 kJ

Explanation:

4 0

3 years ago