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In-s [12.5K]
3 years ago
6

14. The noble gases in Group 18 are very reactive. * O True O False

Chemistry
1 answer:
Soloha48 [4]3 years ago
5 0

Answer: the answer is True

Explanation:

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Investigate why some element’s symbols derived from their old names.
Gekata [30.6K]

Answer:

you know just in order to bring that nostalgia into chemists minds

Explanation:

3 0
3 years ago
If 20.0 grams of Na reacts with 30.0 gtams of Cl2 what mass of NaCl is produfed by the reaction
IgorLugansk [536]

Answer:

mNaCl = mNa + mCl

mNa = 20g

mCl = mCl2/2 = 30/2 = 15g

mNaCl= 20+15 = 35g

6 0
2 years ago
Which of the following is a nonmetallic mineral resource?. A. wood . B. iron . C. coal . D. aggregate
sesenic [268]

Answer: The correct option is D.

Explanation: Nonmetallic minerals are the chemical elements from which no new product can be formed when they are melted. For Example: Sand, marble etc..

For the given options:

Option A: Wood is a type of cellulose and is not considered as a nonmetallic mineral resource.

Option B: Iron is an element because it is the smallest substance which cannot be broken down. It is not considered as a nonmetallic mineral resource.

Option C: Coal is a mixture of carbon compounds. This is very close to mineral but is an organic mineral because it contains carbon atom. Hence, it is not considered as a nonmetallic mineral resource.

Option D: Aggregate is  formed by the collection of particles forming a whole mass. This is a non-metallic resource as it cannot form any new product.

Hence, the correct option is D.

8 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!!!!!!
KonstantinChe [14]

Answer:

Option "C" is the correct answer to the following question.

Explanation:

Given:

Pressure in an automobile tire (P) = 1.88 atm

Temperature (K) = 25°C = 273 + 25 = 298 Kelvin

New temperature (K1) = 37°C = 273 + 37 = 310 Kelvin

Find:

New pressure in an automobile tire (P1) = ?

Computation:

\frac{P}{K}= \frac{P1}{K1} \\\\\frac{1.88}{298}= \frac{P1}{310}\\\\1.9557

New pressure in an automobile tire (P1) = 1.9557

New pressure in an automobile tire (P1) = 1.96 (Approx)

5 0
3 years ago
Another word for "basic" is?
natita [175]

Answer: Fundamental, Key, vital, crucial

Explanation:

5 0
3 years ago
Read 2 more answers
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