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nevsk [136]
3 years ago
5

The law that states that heat flows from warmer to colder objects is the..

Chemistry
1 answer:
polet [3.4K]3 years ago
6 0

Answer:

Second Law of Thermodynamics

Explanation:

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Which element would chemically react with oxygen​
Makovka662 [10]

Lithium, sodium, potassium, magnesium, calcium, barium, boron, aluminum, nitrogen, phosphorus, sulfur, fluorine and xenon are all examples of elements that react with oxygen. Oxygen reacts with other elements but those reactions are relatively mundane.

5 0
3 years ago
The ph of a 0. 102 m solution of a weak acid (ha) is 1. 15 ka for the weak acid is?
Advocard [28]

The pH of the weak acid is 6.93.

Given,

K= 1.15 *10^{-6}

c=0.102

[H]= K*c= 1.15 *10^{-6} * 0.102= 0.1173 *10^{-6}

p[H]= -log[H]= 6.93

<h3>Weak acid</h3>

A weak acid is one that partially separates into its ions in water or an aqueous solution. A strong acid, on the other hand, completely splits into its ions in water. The conjugate base of a weak acid is also a weak base, and vice versa for the conjugate acid of a weak base. Weak acids have a higher pH than strong acids at the same concentration. Simple arrows pointing left to right are used to represent the reaction of a strong acid ionising in water. On the other hand, a weak acid ionising in water has a double arrow reaction arrow, indicating that both the forward and reverse reactions take place at equilibrium.

Learn more about Weak acid here:

brainly.com/question/22104949

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6 0
1 year ago
The number of valence electrons for any element can be determined by knowing
strojnjashka [21]
The electronic configuration [the valence electrons is known by the last no after
8 0
3 years ago
Which formula represents an organic compound?cah2c4h8h2o2p2o5?
Dmitry_Shevchenko [17]
Answer is: C₄H₈.
C₄H₈ is hydrocarbon, organic compound<span> consisting only of carbon and hydrogen.
CaH</span>₂ (calcium hydride) is alkaline earth hydride, inorganic compound.
H₂O₂(hydrogen peroxide) is pale blue, clear, inorganic <span>liquid.
P</span>₂O₅ (phosphorus pentoxide) is <span>white, crystalline solid inorganic compound.</span>
3 0
3 years ago
If an atom of thorium-234 were to undergo beta emission twice, which atom would result?
AnnZ [28]

Answer:

The answer to your question is  U-234

Explanation:

Data

Thorium-234

beta emission twice

Definition

Beta emission is when a beta particle (electron) is emitted from an atomic nucleus.

First beta emission

                                            ²³⁴₉₀Th   ⇒    ²³⁴₉₁Pa + e⁻

Second beta emission

                                            ²³⁴₉₁ Pa   ⇒  ²³⁴₉₂U  + e⁻

The atom will be Uranium-324

6 0
4 years ago
Read 2 more answers
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