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Kazeer [188]
3 years ago
13

Part 1. Find AHra for these chemical reactions. Tell if each is endothermic or exothermic.

Chemistry
1 answer:
strojnjashka [21]3 years ago
6 0

Answer:

1 is ur answer

Explanation:

but add me on ps4 faded4_twenty

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Bonds between metals and nonmetals tend to be ionic, but bonds between nonmetal atoms tend to be covalent. Explain why this is t
Assoli18 [71]
Ionic bond is a type of bond in which one or more atoms are transferred to another atom which results to two ions with opposite charge. They attract each other.

The atom of another element is removed and then gained by another element which produces a noble gas electron configuration.

Covalent bond is a type of bond in which a pair or more electrons are being shared by the atoms of two elements.

Because of this, the molecules become stable by sharing the electrons thus creating a noble gas configuration for each of the atom.


3 0
3 years ago
Read 2 more answers
Factor<br>f(x)=x² + 4x +3​
My name is Ann [436]

Answer:

f(x)=(x+1)(x+3)

Explanation:

7 0
3 years ago
A large sample of solid calcium is crushed into smaller pieces for testing. Which two physical properties are the same for both
jarptica [38.1K]
Lets go over what our properties are

-Mass is a measure of the amount of matter available. 
<span>
-Density is the ratio of mass to volume. Density is determined to be a physical object</span>

<span>-Volume is the amount of space occupied by the object. </span>

<span>-Solubility is the amount of a substance required to form a saturated solution with a specific amount of solvent at a specified temperature. 
</span>
-Mass is the same size and weight of an object for the most part which cannot be the same for a bigger or smaller object. Which means density cannot either since density has a direct correlation with mass. Volume is usually the size occupied at the current time. This means it cannot be the same for a large and small object. Note that! Then we have solubility which is the amount required or needed but since you are just crushing the solid it would wind up still being the same amount.

-With this all put together we can say your answer is probably Solubility and Desnity.
5 0
3 years ago
Solutions _________________________________________. a. are always composed of a solid dissolved in a liquid b. can be composed
rjkz [21]
What r the lines for?
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3 years ago
Balance the following chemical equation: CH4+ Cl2 → CCl4+ HCI​
inn [45]

Explanation:

CH4+8/2Cl2—>CCl4+4HCl

that is,1molecule of methane+8/2 molecules of dichlorine—>1molecule of carbon tetrachloride+4molecules of hydrogen chloride

5 0
2 years ago
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