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Vinvika [58]
3 years ago
10

A gas has ? Please help will appreciate it. Thanks

Chemistry
1 answer:
Kaylis [27]3 years ago
6 0
Answer is C. No definite shape or definite volume
A gas<span> is a substance with no </span>definite volume<span> and no </span>definite shape<span>. Solids and liquids </span>have volumes<span> that do not change easily. A </span>gas<span>, on the other hand, </span>has<span> a vol- ume that changes to match the </span>volume<span> of its container. The molecules in a </span>gas<span> are very far apart compared with the molecules in a solid or a liquid.</span>
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Write the isotope notation for the following isotope: copper-63, copper-65, magnesium-24, magnesium-25, magnesium-26, lithium-6,
andrey2020 [161]
63/29 Cu (copper-63)
65/29 Cu (copper-65)
24/12 Mg (magnesium 24)
25/12 Mg (magnesium 25)
26/12 Mg (magnesium 26)
6/3 Li (lithium 6)
7/3 Li (lithium 7)

The top number is the mass number and you find that by adding the number of neutrons and atomic number
The bottom number is the atomic number and it’s the number or protons
3 0
3 years ago
If a test yields consistent results every time it is used, it has a high degree of...
Marysya12 [62]

Answer:Reliability

Explanation:

Reliability of a test refers to how consistently a test measures a characteristic under the same conditions.

Reliability can be defined as the degree of consistency of which a chemical test gives a similar result. measure. A test is said to be highly reliable when it gives the same repeated result under the same conditions of measure.

But when a test gives different results under the same condition of measure it has a low reliability.

Hence, If a test yields consistent results every time it is used, it has a high degree of reliability.

4 0
3 years ago
Perform the following
docker41 [41]

Answer:

8.73

Explanation:

when you are adding or subtracting numbers, the sigfig (significant figure) is based on how many numbers after the decimal. with this info, we can see that 15.67 has 2 sigfigs and 6.943 has 3 sigfigs. when you subtract normally, you would get 8.727, which has 3 sigfigs, so you would round the last 7 up to get 8.73 with 2 sigfigs!

also it is to 2 sigfigs because we know that we go by the least number of sigfigs. hope this helped!

3 0
3 years ago
What is the volume of 500g of CO2?
Airida [17]

Weighs 0.001836 gram per cubic centimeter or 1.836 kilogram per cubic meter


Try to see if this helps

3 0
3 years ago
Read 2 more answers
Convert 100,000,00. milligrams to kilograms
aivan3 [116]

Answer:milliliters to kilograms

Weight of 1000 milliliters (ml) of pure water at temperature 4 °C = 1 kilogram (kg).

Explanation:

hope this helps have a nice night ❤️❤️❤️

3 0
2 years ago
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