Explanation:
density = mass ÷ volume
mass = 960g
volume = 15³ = 15 × 15 × 15
= 3375 cm
density = 960 ÷ 3375
= 0.28 g/cm³
In a chemical reaction, the mass of the reactants is 13.3 grams. Which of the following could represent the mass of the products?
A. 26.6 grams.
B. 13.3 grams.
C. 39.9 grams.
D. 3.3 grams.
Answer:
Hi the answer should be 13.3
Explanation:
Hope this helps! :D
Oxygen in the air can react with wood when a match is burned. Ash is produced.
Which statement would be true?
A. The atoms of the ash did not exist before.
B. Ash has similar properties to oxygen.
C. The atoms of wood and oxygen disappear during the burning.
D. Ash is a different substance than wood.
Answer:
D. Ash is a different substance than wood.
Answer:
D the atoms of ash did not exist before
Explanation:
because I jnwo .... k
why does atumn start in diffrent months of the year in north america and south america
Answer:
because the sun is further away due to the earth's axis
can someone solve this question please
Answer:
MgO + 2 HNO3 → Mg(NO3)2 + H2O
Explanation: