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Black_prince [1.1K]
3 years ago
8

6th grade science i mark as brainliest​

Chemistry
2 answers:
MaRussiya [10]3 years ago
7 0
C is the correct answer
valentinak56 [21]3 years ago
5 0

Answer:

the answer you have marked is correct.

C is correct.

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What is the amount of heat, in joules, required to increase the temperature of a 49.5-gram sample of water from 22°C to 66°C?
charle [14.2K]

Answer:

3) 9.1 x 10^3 J

Explanation:

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2 years ago
What atomic or hybrid orbital on sb makes up the sigma bond between sb and f in antimony(iii) fluoride, sbf3?
Afina-wow [57]

Answer: The four sp^3 hybridized orbitals on Sb makes up the sigma bonds between Sb and F in antimony(iii) fluoride ,SbF_3

Explanation:

According to VESPR theory:

Number of electrons around the central atom : \frac{1}{2}[V+N-C+A]

V = number of valence electrons

N = number of neighboring atoms

C = charge on cation

A = charge on an anion

In antimony(III) fluoride ,

Antimony being central atom: V= 5,N =3,C=0,A=0

Number of electrons : \frac{1}{2}[V+N-C+A]=4

Number of electrons around the central atom are 4 which means that SbF_3 molecule has four sp^3 hybridized orbitals.

6 0
2 years ago
What is the source of energy that provides the boost for electrons during photosynthesis
Elodia [21]

Answer:

The sun

Explanation:

The sun is the source of energy that provides the boost for electrons during photosynthesis

3 0
2 years ago
How many molecules are there in 24 grams of Fe? <br><br> (Please explain how you got the answer)
Nataly [62]
1 Answer. SCooke · Stefan V. 1.2×1023 molecules. Hope this helps
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2 years ago
What is the formula for CO3 2- and Al3+ ?
Goryan [66]

Answer is: formula is Al₂(CO₃)₃.

Aluminium carbonate (Al₂(CO₃)₃) has neutral charge. Because aluminium cation has positive charge 3+ and carbonate anion has negative charge 2-, for right chemical formula, we need two aluminium cations and three carbonate anion:

charge of the molecule = 2 · (3+) + 3 · (-2).

charge of the molecule = 0.

7 0
3 years ago
Read 2 more answers
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