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Secondary 1 | Maths
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pls help for these science questions ASAP
Date Posted: 3 years ago
Views: 223
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The answer is B. You should not fill the chemical to the brim as effervescence might occur and without know the composition it might be dangerous. While heating any Chemical you should not use any stopper as certain chemicals release gas when trapped in test tube it might be dangerous.
how about q1,2,4,5??
there are a total of 5 questions that I’m at very much unsure of
Q1 A
we should not pour th unused chemical back into the original bottle as chemicals in the test tubes might oxidise as it's exposed to the aie. .. Where in the original bottle... It is not exposed so it's still in its pure form
we should not pour th unused chemical back into the original bottle as chemicals in the test tubes might oxidise as it's exposed to the aie. .. Where in the original bottle... It is not exposed so it's still in its pure form
Q4 A
length - metre
Mass- kilo gram
Reference :
https://physics.nist.gov/cuu/Units/current.html
Do learn and note it down in note book it will help u in future studies
length - metre
Mass- kilo gram
Reference :
https://physics.nist.gov/cuu/Units/current.html
Do learn and note it down in note book it will help u in future studies
Q5 C
If both the solid has equal volume but one has higher mass it said to have higher density hence option is C
If both the solid has equal volume but one has higher mass it said to have higher density hence option is C
Q2 is a trick question as all the options are some what abuse to technology but I m thinking the option is A because it's used as a weapon during war. Please do clarify with your school techer once.
ok thank you so much and ty for the link
No problem
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