Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions. The “ingredients” of a reaction are called reactants, and the end results are called products.
Answer:
Is soft
Explanation:
because concrete is hard ash so t hink flour would be safer
Answer:
a chart
Explanation:
a chart a chart is the answer
B. The sand increases friction by increasing roughness.
