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QveST [7]
3 years ago
7

Doing it again please answer for me appreciate it thank you

Chemistry
2 answers:
galben [10]3 years ago
5 0

Answer:

1: winter

2: summer

3: the equater

4: north pole

Explanation:

Mandarinka [93]3 years ago
4 0

Answer:

1. A

Explanation:

i guessed on this answer

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90.00 ml of 0.25 M calcium hydroxide are required to titrate 100.00 ml of hydrochloric acid. What is the molarity of the HCI?
bezimeni [28]

Answer:

50000mm u add subtract multiply divide

Explanation:

4 0
3 years ago
Select the molecule where free rotation around one or more bonds is not possible. Group of answer choices N2H4 C2Cl4 NH3 C2H6 CC
Alexandra [31]

Answer:

C₂Cl₄

Explanation:

To know if free rotation around a bond in a compound is possible, we need to see the structure of the compound (picture in attachment).

In single bonds, which are formed by σ bonds, the atoms are not fixed in a single position, and free rotation is permitted.

Double and triple bonds are formed by a σ bond and one or two π bonds, respectively. These bonds do not allow rotation, since it is not possible to twist the ends without breaking the π bond.

The chloroethylene (C₂Cl₄) has two carbons with an sp2-sp2 hybridization, they are bonded together by a double bond. <u>Free rotation on this bond is not possible, because six atoms, including the carbon atoms, doubly bonded and the four chlorine atoms bonded to them, must be on the same plane. </u>

4 0
3 years ago
If the volume and Kelvin temperature are reduced by one-half what will happen to the pressure???
jolli1 [7]

Answer:

the pressure will decrease

Explanation:

6 0
3 years ago
In a simple covalent compound, which statement is TRUE
Savatey [412]

Answer:

C:to the right side of the periodic table, and it is given

the suffix -ide.

5 0
2 years ago
A solid with a density of 3.57g/mL and mass of 19.5g is added to a graduated cylinder that contain 23.2mL of water. What is the
NNADVOKAT [17]

Answer:

Volume of liquid = 28.7 mL

Explanation:

Given data;

Density of solid = 3.57 g/ml

Mass of solid = 19.5 g

Volume of water = 23.2 mL

Total volume when solid is dropped into graduated cylinder= ?

Solution:

Density = mass/ volume

v = m/d

v = 19.5 g/ 3.57 g/ml

v = 5.5 mL

Volume of liquid = volume of water + volume of solid

Volume of liquid = 23.2 mL + 5.5 mL

Volume of liquid = 28.7 mL

3 0
3 years ago
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