<span>According to Georgia Perimeter College, </span>tap water<span> is not </span>heterogeneous.Heterogeneous mixtures<span> have at least two substances, and viewers can see what is in it. </span>Tap water<span> is </span>homogeneous<span>, as </span>homogeneous mixtures<span> have at least two substances in them, but viewers cannot see them.</span>
Answer:
D) Physical property
Explanation:
"A physical property is a characteristic of matter that can be observed and measured without changing the chemical identity of the sample," like color.
Answer:
Explanation:
The increase in heat, Q = 58.1 J
Mass, m = 89.4 g
The temperature increases from 23.4°C to 25.5°C. We need to find the specific heat of an unknown metal.
We know that the increase in heat is given by :
So, the specific heat of an unknown metal is equal to .
Answer:
i-um yes. i'm randy, totally not an imposter.
Explanation:
To solve this problem, we use the formula:
M1 V1 = M2 V2
To calculate for the total final volume V2:
V2 = M1 V1 / M2
V2 = 1.65 M * 12 mL / 0.495 M
V2 = 40 mL
Since final volume is 40 mL so water needed is:
water volume = 40 mL – 12 mL
<span>water volume = 28 mL</span>