michelleshani22 michelleshani22
  • 02-02-2021
  • Chemistry
contestada

Temperature rise in °C
Metal
Mean
temperature
rise in °C
Test 1
Test 2
Test 3
Calcium
17.8
16.9
17.5
Iron
6.2
6.0
6.1
6.1
Magnesium
12.5
4.2
12.3
124
Zinc
7.8
8.0
7.6
7.8
(a) Give two variables the student should control so that the investigation is a fair test
(2)

Respuesta :

kriteekadarnal1
kriteekadarnal1 kriteekadarnal1
  • 02-02-2021

Answer:

is the question correcttt

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