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Vlada [557]
3 years ago
10

What is the color would phenolphthalein be if placed in water

Chemistry
1 answer:
Naily [24]3 years ago
7 0
It's would turn pink in a basic solution suck as water.
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Which statement supports the claim that the continental crust was once joined together as one supercontinent, Pangaea?
Liula [17]

Answer:

each continent shifts 2-5 inches per year so once it was joined then it is what it is now.In a million years again it will comes closer and wjo knows what will happen.moutains will be formed as the tectonic plates will collide.

5 0
3 years ago
To answer this question, you may need access to the periodic table of elements.
OleMash [197]

Answer:

b.) Br and Br

Explanation:

A covalent bond occurs when electrons are shared between two atoms causing them to form a bond.

A "pure" covalent bond refers to a nonpolar covalent bond. In these bonds, the electrons are shared equally between two atoms as a result of the absence of an (or very small) electronegativity difference. The purest covalent bond would therefore be between two atoms of the same electronegativity. Two bromines (Br) have the same electronegativity, thus making it the purest covalent bond.

Polar covalent bonds occur when electrons are shared unequally between two atoms. There is a larger electronegativity difference between the two atoms, but not large enough to classify the bonds as ionic. In this case, a.) and c.) are polar covalent bonds and d.) is an ionic bond.

7 0
1 year ago
The density of ethanol is 0.789 g/cm 3 at 20°C. What volume of ethanol has a mass of 15.5 grams?
kirill [66]

Volume = 15.5 g × (1 cm³/0.789 g) = 19.6 cm³

7 0
3 years ago
How many grams are there in 5.00 moles of lead
Andrew [12]
I wanna say 3,398.08 but let me know if that sounds very off
7 0
3 years ago
If a car jack's output force is 1000 N and the mechanical advantage is 6.8, what is the input force?
Travka [436]
Answer
147.06N
Explanation:
MA=Load/Effort
6.8=1000/x
Finding x you make x the subject and divide 1000 by 6.8 which is 147.06N
4 0
2 years ago
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