After 4-6 months but i'm happy for you
Answer:
Pulse rate depends on the activity we do, while exercising theres need of more oxygen so it increases but while at rest body requires less oxygen so low pulse rate.
Answer: option B. 5g
Explanation:
50mL of H2O dissolves 25g of CaCl2.
Therefore, 10mL of H2O will dissolve Xg of CaCl2 i.e
Xg of CaCl2 = (10 x 25) /50 = 5g
When a substance melts it has changed from a solid to a liquid state while when a substance is set on fire is changes from liquid to gaseous state as it boils.
<h3>What is change of state?</h3>
Change of state of matter is the transformation of a substance from one phase of matter to another.
When a substance melts it has changed from a solid to a liquid state while when a substance is set on fire is changes from liquid to gaseous state as it boils.
Learn more about matter here:
brainly.com/question/3998772
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Answer:
The number of electrons in the outermost shell of an atom determines its reactivity. Noble gases have low reactivity because they have full electron shells. Halogens are highly reactive because they readily gain an electron to fill their outermost shell.
Explanation:
