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Masteriza [31]
4 years ago
9

Which is most likely why many scientists reject the cold fusion theory?

Chemistry
1 answer:
Effectus [21]4 years ago
8 0
Since there are no choices provided for this question, the answer to why many scientists reject the cold fusion theory is that the experiment by Fleischmann and Pons that had the strongest claim was found out to be flawed. Many scientists who also replicated the experiment failed to obtain positive results which further weakened the claim for cold fusion theory. 
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Page. 5. What is the position of alkali metals in the Modern periodec table. ​
hoa [83]

Answer:

Group 1 ( The Leftmost)

More Information :

The alkali metals are six chemical elements in Group 1, the leftmost column in the periodic table.

They are :

  • lithium (Li)
  • sodium (Na)
  • potassium (K)
  • rubidium (Rb)
  • cesium (Cs)
  • francium (Fr).
6 0
3 years ago
Read 2 more answers
Object a has a mass of 12 G and a volume of 8 cm3 object be has a mass of 20 G and a volume of 8 cm3 which object has a greater
solniwko [45]

Answer:

Option C = object B by 1 gram per cubic cm.

Explanation:

Given data:

Mass of object A = 12 g

Volume of object A = 8 cm³

Mass of object B = 20 g

Volume of object B = 8 cm³

Densities = ?

Solution:

Density:

Density is equal to the mass of substance divided by its volume.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

Symbol:

The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.

Density of object A:

d = m/v

d = 12 g/ 8 cm³

d = 1.5 g/cm³

Density of object B:

d = m/v

d = 20 g/ 8 cm³

d = 2.5 g/cm³

object b has high density.

5 0
3 years ago
Is a tree burning a chemical or physical change
Sauron [17]
Chemical. Burning is a chemical process
8 0
3 years ago
Read 2 more answers
How do you calculate molar mass for covalent molecules and for ionic compounds? explain.​
RideAnS [48]

Answer:

See the explanation and examples below, please.

Explanation:

To calculate the molar mass of a substance you must have the atomic weights of each component:

Example NaCl ionic compound (sodium chloride, known as table salt)

Molar mass NaCl = Atomic weight Na + Atomic weight Cl = 22, 98 gr + 35, 45gr = 58.35 grams / mol

Example covalent compound HCl (hydrochloric acid) = Atomic weight H + Atomic weight Cl = 1, 004gr + 35, 45 gr = 36, 45 grams / mol

In the case of having compound H20 (water), it is calculated:

Molar mass NaCl = 2 x (Atomic weight H) + Atomic weight 0 (the atomic weight of 1 mol of Hydrogen is multiplied by 2)

6 0
3 years ago
Read 2 more answers
How many single covalent bonds could an element with the electron
Tcecarenko [31]

Answer:

1

Explanation:

I would say 1 because that configuration has 7 valence electrons.  The goal of the atom is to gain a full octet so it just needs to gain 1 more electron to get the full octet.  To get the one electron to fill the valence shell it would only need to have 1 covalent bond.

I hope this helps.  Let me know if anything is unclear.

5 0
3 years ago
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