Answer: 2.008 g
Explanation:
we can use the similar equations as I have before: q = mcAT
we are given q, AT, and c is a constant so now we have to solve for m
84=m(4.184)(10)
m = 2.008 g of water
Answer:
2.0 × 10⁴ mg
Explanation:
Step 1: Given data
Mass (m): 0.020 kg
Step 2: Convert the mass from kilograms to grams
We will use the conversion factor 1 kg = 1,000 g.
0.020 kg × (1,000 g/1 kg) = 20 g
0.020 kg is equal to 20 g.
Step 3: Convert the mass from grams to milligrams
We will use the conversion factor 1 g = 1,000 mg.
20 g × (1,000 mg/1 g) = 2.0 × 10⁴ mg
20 g is equal to 2.0 × 10⁴ mg. Then, 0.020 kg is equal to 2.0 × 10⁴ mg.
Answer: The correct answer is Sample B and Sample D
<span>This reaction produces carbon dioxide. Platinum is used in the catalytic converter in some automobiles. The main objective of a catalyst is to act as a substance that speeds up a reaction. However, it is imperative that it does this without being consumed in the reaction.</span>