Answer: 1.8 x 10^1 or the scientific e notation is: 1.8e1
I don’t know i’m trying to get some points
Answer:
15.0 g
Explanation:
Step 1: Given and required data
- Heat used to melt a sample of ice (Q): 5.01 kJ
- Latent heat of fusion of water (ΔH°fus): 334 kJ/kg
Step 2: Calculate the mass (m) of water
334 kJ are required to melt 1 kg of ice at 0°C (melting point of water). We can calculate the mass of ice melted by 5.01 kJ using the following expression.
<em>Q = ΔH°fus × m</em>
m = Q / ΔH°fus
m = 5.01 kJ / (334 kJ/kg)
m = 0.0150 kg = 15.0 g
<span>The charge of the ion becomes negative. This is because electrons naturally come with a negative charge. Adding one electron will make the charge 1-, as it was a balanced atom before taking on the additional particle.</span>
Answer:
Friction can be a useful force because it prevents our shoes slipping on the pavement when we walk and stops car tyres skidding on the road. When you walk, friction is caused between the tread on shoes and the ground. This friction acts to grip the ground and prevent sliding. Sometimes we want to reduce friction.
Explanation: