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castortr0y [4]
3 years ago
7

Which group contains elements that are most likely to have similar properties

Chemistry
1 answer:
Alika [10]3 years ago
5 0
I believe it's alkali metals and alkaline earth metals.
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Ivahew [28]

Answer:

to mi understanding iz fusion reaction

6 0
3 years ago
HCOOH is:<br> formaldehyde<br> formic acid<br> acetone<br> carbon hydroxide
Svet_ta [14]

Answer: formic acid

Explanation:

HCOOH is the structural formula for the compound commonly known as formic acid.

According to the international union of pure applied chemist (IUPAC), it is named methanoic acid, and represent the first member of the alkanoic acids.

Thus, examples of alkanoic acids are

- formic acid (HCOOH)

- Acetic acid (CH3COOH)

- Propanoic acid (CH3CH2COOH) etc

3 0
3 years ago
The decomposition of N2O to N2 and O2 is a first-order reaction. At 730°C, the rate constant of the reaction is 1.94 × 10-4 min-
fomenos

Answer:

The total pressure after one half is 6.375 atm.

Explanation:

The initial pressure of product is increases while the pressure of reactant would decrease.

Balanced chemical equation:

2N₂O  → 2N₂ + O₂

The pressure of N₂O is 5.10 atm. The change in pressure would be,

N₂O = -2x

N₂ = +2x

O₂ = +x

The total pressure will be

P(total) = P(N₂O) + P(N₂)  + P(O₂)

P(total) = ( 5.10 - 2x) + (2x)  + (x)

P(total) = 5.10 + x

After one half life:

P(N₂O)  = 1/2(5.10) = 5.10 - 2x

x = 5.10 - 1/2(5.10) /2

x = 5.10 - 0.5 (5.10) /2

x = 5.10 - 2.55 / 2

x = 2.55 /2 = 1.275 atm

Thus the total pressure will be,

P(total) = 5.10 + x

P(total) = 5.10 + 1.275

P(total) = 6.375 atm

4 0
3 years ago
General size of a nebula
Salsk061 [2.6K]
Can range anywhere from 1 AU to 10 AU
4 0
3 years ago
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which of the following correctly shows a prefix used in naming a binary molecular compound along with its corresponding number?
aivan3 [116]
The answer is Nona-9, penta- is five, hexa- is six, and deca- is ten.
3 0
3 years ago
Read 2 more answers
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