Plants do not adapt to their environment because they do not compete for resources.

Chemistry

1 answer:

olga_2 [115]3 years ago

8 0

The answer is false i just did that question

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Which of the following molecules can form hydrogen bonds? Group of answer choices NH3 NaH HI BH3 CH4

Len [333]

Answer:

NH₃

Explanation:

The hydrogen bond is a specially strong type of dipole-dipole interaction. For a hydrogen bond to occur, a molecule must have a hydrogen atom and a very electronegative atom, such as nitrogen, oxygen or fluorine. The hydrogen atom has a positive charge density while the heteroatom has a negative charge density.

Which of the following molecules can form hydrogen bonds?

NH₃ YES

NaH NO

HI NO

BH₃ NO

CH₄ NO

8 0

3 years ago

How many Electrons, Neutrons & Protons do

EastWind [94]

Answer:

sodium

protons:11

neutrons:12

electrons:11

nitrogen

protons:7

neutrons:7

electrons:7

6 0

3 years ago

Read 2 more answers

Given these reactions, X ( s ) + 1 2 O 2 ( g ) ⟶ XO ( s ) Δ H = − 668.5 k J / m o l XCO 3 ( s ) ⟶ XO ( s ) + CO 2 ( g ) Δ H = +

qwelly [4]

Answer: The $\Delta H^o_{rxn}$ for the reaction is -1052.8 kJ.

Explanation:

Hess’s law of constant heat summation states that the amount of heat absorbed or evolved in a given chemical equation remains the same whether the process occurs in one step or several steps.

According to this law, the chemical equation is treated as ordinary algebraic expressions and can be added or subtracted to yield the required equation. This means that the enthalpy change of the overall reaction is equal to the sum of the enthalpy changes of the intermediate reactions.

The given chemical reaction follows:

$X(s)+\frac{1}{2}O_2(g)+CO_2(g)\rightarrow XCO_3(s)$ $\Delta H^o_{rxn}=?$