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Tems11 [23]
2 years ago
8

What factor would speed up a chemical reaction

Chemistry
2 answers:
vekshin12 years ago
8 0

Answer:

Adding Catalyst can Speed up a Chemical reaction

tresset_1 [31]2 years ago
3 0

Answer: catalyst

Explanation:

a catalyst is a substance that helps speed up chemical reactions.

hope this helped! ♡

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Covalent Bonds <br><br> How many covalent bonds can Nitrogen atoms make ?
notsponge [240]
A nitrogen atoms can make 3 covalent bonds because it has three unpaired electrons

6 0
2 years ago
Read 2 more answers
Which statement best explains why magnesium and chlorine combine in a 1:2 ratio?
denpristay [2]

The statement that best explains why magnesium and chlorine combine in a 1:2 ratio is; Magnesium has two valence electrons, and chlorine can accept one electron in its outer shell.

The number of electrons that an atom of an element has in its outermost shell determines the chemical formula of the compounds formed by atoms such elements.

Magnesium is in group 2, as such it has two electrons in its outermost shell while chlorine in group 17 only accepts one electron in its outermost shell. This one electron will give chlorine an inert gas configuration while the loss of two electrons give magnesium an inert gas configuration.

Therefore; The compound MgCl2 is formed in the ratio of 1:2 because Magnesium has two valence electrons, and chlorine can accept one electron in its outer shell.

Learn more: brainly.com/question/11527546

8 0
2 years ago
The sodium atom loses an electron to form a sodium ion (Na+). Which statement is correct with respect to its atomic radius? A. T
maw [93]

Answer:B. The sodium ion has a smaller radius than the atom.

Explanation:

Because size of cation is less than neutral atom

4 0
3 years ago
At standard pressure, ammonia melts at 195 K and boils at 240 K. If a sample of ammonia at standard pressure is cooled from 200
Svetradugi [14.3K]

Answer:

I) the heat capacity of ammonia(s)

II) the heat capacity of ammonia(ℓ)

IV) the enthalpy of fusion of ammonia

Explanation:

Initially, ammonia at 200 K is liquid. To calculate the change of enthalpy from 200 K to 195 K (melting point) we need to know the heat capacity of ammonia(ℓ).

At 195, ammonia is in the transition from liquid to solid (solidification). To calculate the change of enthalpy in that process we need to know the enthalpy of solidification of ammonia, which has the same value but opposite sign to the enthalpy of fusion of ammonia.

From 195 K to 0 K, ammonia is solid. To calculate the change of enthalpy in that process we need to know the heat capacity of ammonia(s).

7 0
3 years ago
How do metals and nonmetals differ in terms of how they lose/gain electrons?
Serhud [2]
Metals lose electrons
Non metals gain electrons

They do this to gain a full outer shell in order to become stabilised
4 0
3 years ago
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