5.
2. Which of the following statements
indicates that a new substance is
forming?
a. A liquid is changing to a solid
b. Metal is melting
C. A substance is fizzing or
bubbling
d. A liquid evaporating to a gas
Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?
How does the atmosphere to make earth livable? check all that apply. causes the seasons contains oxygen provides warmth creates important nutrients blocks harmful energy from the sun plz like !