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iris [78.8K]
3 years ago
13

Enter your answer in the provided box.

Chemistry
1 answer:
telo118 [61]3 years ago
8 0

Answer:

i really dont know i just need points bad sorry bud

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1) When elements combine to form compounds:
vodomira [7]

Answer:

B

Explanation:

when elements reacts to form a compound the elements properties changes completely. This happens due to the fact that a chemical reaction has taken place. In a chemical change new substances are formed and the properties of the products differ entirely from that of the reactant.

for example if hydrogen combines with oxygen to form water, the property of hydrogen differs from oxygen and also both differs chemically when compared to water.

6 0
4 years ago
What kind of chemical bond does salt have?
IRINA_888 [86]
This type of chemical bond is called an ionic bond because the bond formed between two ions of opposite charge.
3 0
3 years ago
Which of the following statements explains why atoms are always neutral in charge
laila [671]

Answer:

D. They have the same number of protons as electrons.

Explanation:

Protons are found in the nucleus of the atom and have a positive charge while electrons orbit around the nucleus and have a negative charge. Usually, in a neutral atom of an element, the number of protons is equal to the number of electrons. This is why the atom has no charge because the positive and negative charges cancel out. When an atom loses an electron its charge turns positive while when it gains an electron its charge turns negative.

6 0
2 years ago
Which step do you use first to calculate the number of grams of FeCl2 produced when
Zielflug [23.3K]
30.987 is 4576vhnj
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5 0
3 years ago
Calculate the fraction of lattice sites that are Schottky defects for cesium chloride at 623 oC (this temperature is below the m
Degger [83]

Answer:

5.9 × 10^-6.

Explanation:

In the arrangements of crystal solids there is likely going to be an imperfection or defect and one of the defect or imperfections in the arrangements of solids is known as the Schottky defects. The Schottky defects is a kind of lattice arrangements imperfection that occurs when positively charged ions and negatively charged ions leave their position.

So, let us delve right into the solution of the question. We will be making use of the formula below;

Wb/ W = e^ - c/ 2kT.

Where Wb/ W= fraction of lattice sites, c= energy for defect formation = 1.86 eV, and T = temperature= 623° C= 896 k.

So, Wb/ W = e ^ -1.86/ (2 × 896 × 8.62 × 10^ -5).

Wb/ W= 0.000005896557435956372.

Wb/ W=5.9 × 10^-6.

3 0
3 years ago
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