Answer:
4.D. 2KJ
5.B. close to 0 degree celsius
Explanation:
heat absorbed= heat given out
100g * 4.2 * (x-0)= 400g * 4.2* ( 20-x) where x is the new temp reached
then x= 20
i.e. the temperature of ice increases to 5 degree celsius and the temperature of water decreases to 5 degree celsius .
hope it helps
Atoms and element do relate with each other.
<h3><u>Explanation:</u></h3>
Atoms are defined as the smallest particle of an element which cannot be divided further keeping its physical and chemical properties intact, and they take part in a chemical reaction.
Elements are defined as the substances that are components of matter and cannot be further divided into simpler substances.
AMU or the Atomic mass unit is defined as a unit that is used to express atomic mass and is equal to mass of a hydrogen ion.
Elements are actually formed of atoms that are present in nature and atoms do form elements and even compounds. So they are inter related with each other.
Answer:
Understanding” refers to the ability of the individual to comprehend the ... The “Appreciation” component of decision-making capacity involves the ability ... Note that in addition to explaining the importance of making and ... we excluded instruments that did not measure all four components detailed earlier).
Explanation:hope it helps
A) number of valence electrons is 6
B) number of protons is same as number of electrons
C) That elements is berilium
D)I think it is Cl-37 one
Cars, aeroplanes, factories etc