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lakkis [162]
3 years ago
11

Disadvantage of using a lid on a crucible​

Chemistry
1 answer:
lana66690 [7]3 years ago
5 0
No disadvantage, it’s important have a lid on a crucible to hand extreme temperatures. The lid may also be used to contain chemicals being heated whilst in a lab.
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Please help me. Chemistry
Wewaii [24]

Answer:

element S is argon and element T is potassium.

4. B

5. D

Explanation:

in an element in periodic table number of elctrons and protons are same.

4. since element S has 18 protons so its atomic number must be 18 so the element is Argon which is the last element of period 4 so the next element will go to period 4 with one extra shell and since the atomic number of next element is 19 the element is Potassium. therefore T is Potassium.

5. number of nucleons in an atom is the number of protons and neutons combined together in an nucleus

8 0
4 years ago
PLEEAASE HELLLP AAAASSSASSSSSPPPPP​
Xelga [282]

Answer:

Concept: Chemical Analysis

  1. Higher humidity indicates a higher concentration of water molecules and hence a higher statistical probability of rain.
  2. Hence Fred in Kentucky will need an umbrella tomorrow due to the humidity and stratus clouds.
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7 0
3 years ago
If you know the mass of an object you can calculate its weight with the formula
Vikki [24]
Answer: True

The formula of weight is w = mg, where m is the mass and g is the acceleration of gravity. If you want to calculate an object's weight, you need to know the two components: mass and gravity. 

You only need to know the mass of the object because the acceleration of gravity is ALWAYS (assuming the object is on Earth) 9.8 m/s^2. 
3 0
3 years ago
An object has a mass of 441 g and a volume
Ratling [72]

Answer:

<h3>The answer is 4.41 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question we have

density =  \frac{441}{10}  \\

We have the final answer as

<h3>4.41 g/cm³</h3>

Hope this helps you

6 0
3 years ago
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miv72 [106K]

Answer:

The Peruvian area of the jungle, living in the high trees is the monkey's habitat.

(I'm not fully sure what a niche is) but:

Feeding on hazelnuts and scavenging for food along the jungle floor is the monkey's niche.

Explanation:

I really hope I was able to help!

Good luck and have a great day :)

4 0
3 years ago
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