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oee [108]
3 years ago
10

The initial water volume in this container was 10.0 mL. When the key was submerged, 3 volumes of displaced water were collected:

0.7 mL, 0.8 mL, and 0.9 mL. What is the volume of the key?
mL
Chemistry
1 answer:
artcher [175]3 years ago
3 0

Answer:

2.4mL

Explanation:

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A student measures a cube composed of an unknown substance. The mass was determined to be 112.8 g, and the volume 63 cm3. What i
irina [24]

Answer:

D

Explanation:

The formula to find the density of an object is mass/volume. You know the mass in this problem is 112.8 grams, and the volume is 63 cm^3. Now you can plug this information into the density formula as 112.8/63, which is about 1.8. Now you just add the cm^3/g and you have your answer.

4 0
3 years ago
What the approximate mass of 24cm of silver, if the density is 10.5 g/cm
Alona [7]
Use equation density = mass/volume
Known/Given

d= 10.5g/cm^3
v= 24.0 cm^3

Use that equation i just mentioned...
Solution
Rewrite the formula as the forumla for solving density into mass

Which is... mass = 10.5g/cm^3 × 24.0cm^3 = 252g

So thats the answer
252g

Hope i could help
8 0
3 years ago
Which of the following models a single replacement reaction? ​
koban [17]
The correct answer would be option 3. I order for a single displacement to occur there must be a single element and one compound. From then, the single element will then swap places with one of the elements in the compound (or in this case single circle and combined circles). Hope this helped!
5 0
3 years ago
Which of these substances has a definite volume but not a definite
vovikov84 [41]
I think answer should be b. Please give me brainlest I hope this helps let me know if it’s correct or not okay thanks
8 0
3 years ago
Read 2 more answers
- 5. Describe the general trend in atomic radil across a row of the periodic table.​
sattari [20]

Answer:

Across a row, atomic radii decreases.

Explanation:

It decreases because nuclear charge increases across a row, electrons are added to the same shell and shielding remains constant. Therefore the outer electrons are more attracted to the nucleus making the atom smaller.

8 0
2 years ago
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