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3 years ago

PLEASE HELP QUICKLY! SERIOUS ANSWER PLEASE

Chemistry

1 answer:

yarga [219]3 years ago

3 0

Answer:

Q1: A

Q2: B

Explanation:

Q1: the independent variable will always go on the x axis and the dependent will always go on the y-axis, so the answer is A.

Q2: it's not a, it's not d (ocean droughts aren't a thing that I'm aware of), and hurricanes don't make water scarce, so I would go with B.

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Write and solve an equation

Nikitich [7]

all i know is that the formula for triangles is base times hight divided by two, so add in a number to replace the missing number, multiply it by 55 and divide the answer by two. hope this helps and i really hope you get it right! or that im right...

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3 years ago

Which of these elements is most likely to be a colorless gas based on the type of element? Al, Pd, Ar, Cs

Solnce55 [7]

Answer:

Al (Aluminum)

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4 years ago

How many Liters of 0.968M solution can be made if 0.581 moles of solute are added? Group of answer choices 0.600 L 60 mL 0.562 L

Rzqust [24]

Answer:

0.6L

Explanation:

The formula of molarity is molSolute/litreSolution

$0.968M=\frac{0.581}{LitreSolution} \\\\LitreSolution=\frac{0.581}{0.968} \\LitreSolution=0.6L$ .

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4 years ago

The total number of valence electrons in the phosphate ion is

Vitek1552 [10]

Answer:

Step-by-step explanation:

There are two ways you can count the valence electrons.

A. From the Periodic Table

1 × P (Group 15) = 5

4 × O (Group 16) = 4 × 6 = 24

+3 e⁻ (for the charges) = 3

Total = 32

B. From the Lewis structure

In the Lewis structure (below), each line (bond) represents a pair of bonding electrons, and each dot represents an unbound electron (half a lone pair).

5 lines (bonds) = 5 × 2 = 10

3 single-bonded O atoms = 3 × 6 = 18

1 double-bonded O atom = 4

Total = 32

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4 years ago

Explain why the symbol for the element sulfur and the formula for a molecule of sulfur differ.

Alexeev081 [22]

Answer:

Symbol : S

molecule : S₈

Explanation:

The symbol of an element is just the representation with few alphabets (one or two) with no digit as we don't represent it for an atom or molecule. Just a symbol.

So for example

Symbol for Helium is He

Symbol for hydrogen is H

Symbol for sulfur is S

However the sulfur in nature exist as a molecule with eight atoms of sulfur.

Thus the elemental form of sulfur is an eight atomic molecule

The forms is represented as S₈.

5 0

4 years ago

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