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Ad libitum [116K]
3 years ago
15

How many grams are in 3.21 x 1024 molecules of potassium hydroxide?

Chemistry
1 answer:
MakcuM [25]3 years ago
3 0

Answer:

3287.04 grams

Explanation:

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If 200 g of water is heated from 20 C to 40 C, then what is the heat added in kilocalories (same as food calories)?
Maslowich

Answer: 4Kcal

Explanation:

H= mcø

M=200g

C= 1 cal/g/°c

Ø= 40-20=20°c

H= 200*1*20= 4000calories= 4Kcal

8 0
2 years ago
The surface of the earth is divided into more than 50 large plates
Romashka-Z-Leto [24]

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2 years ago
Which type of hybridization is observed when central atom is located at the centre of regular tetrahedron
Ann [662]

Answer:

sp3 hybridization

Explanation:

Hybridization means the mixing of atomic orbitals to yield hybrid orbitals with characteristics that are different from that of the isolated atomic orbitals before the combination.

sp3 hybridization occurs when one s orbital is mixed with three p orbitals to yield four sp3 hybrid orbitals which can be used to bond to a central atom.

The central atom is then located at the center of a regular tetrahedron at a bond angle of 109°.

3 0
2 years ago
How do waves affect matter they are traveling through?
s344n2d4d5 [400]
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4 0
2 years ago
For case 1, what happens when an electron jumps from energy level 1 to energy level 3 in an atom?
BaLLatris [955]

Answer:

Case 1 (energy level): In an atom, an electron jumps from energy level 1 to energy level 3. ... The energy will increase.

Explanation:

4 0
2 years ago
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