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3 years ago

Who can do 1 for meSo so so confusedPLEASE help

Chemistry

1 answer:

Arturiano [62]3 years ago

7 0

Draw an arrow from outside the cell (where there is only 1 water molecule) to inside that circle. Then color the water molecules that are labeled h2o:)

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Why is it appropriate to say the constitution is designed to "bend like a willow?

olga nikolaevna [1]

The Constitutions was designed to be flexible so new laws can be added as needed and old laws can be reinterpreted

3 0

2 years ago

Which chemical equation represents a synthesis reaction?A.HCl + LiOH → LiCl + H2OB.2Na + MgCl2 → 2NaCl + Mg.H2CO3 → H2O + CO2D.C

Zina [86]

Answer:

Explanation:

Just did it on A P E X

6 0

2 years ago

Where is most of the water on earth found? What percentage?

bezimeni [28]

Answer:

The ocean holds about 97 percent of the Earth's water; the remaining three percent is found in glaciers and ice, below the ground, in rivers and lakes. Of the world's total water supply of about 332 million cubic miles of water, about 97 percent is found in the ocean.

wait..if you asking about the country it's Brazil✌️

8 0

2 years ago

What chemical changes happen at school

kykrilka [37]

Burning, cooking

Explanation:

Chemical changes that happens in school are:

Cooking of meals

Burning of wastes

Chemical reactions in laboratories

Rusting of iron used in construction

A chemical change is a change that produces new kinds of substances.
These changes are usually accompanied by energy and mass changes.
Most of such changes are not reversible.

Chemical changes are driven by change in chemical properties of matter.

In a school, iron components might begin to rust. This is a chemical change.

learn more:

Chemical change brainly.com/question/9388643

#learnwithBrainly

8 0

2 years ago

Classify each of the four compounds as a conjugated, isolated, or cumulated diene. Compound A: Two alkenes are joined by a sigma

Lina20 [59]

Explanation:

Conjugated diene is the one that contains alternate double bonds in its structure. That means both the double bonds are separated by a single bond.

Cumulated diene is the one that contains two double bonds on a single atom. This means it has two double bonds continuously.

Isolated double-bonded compound has a single bond isolated by two to three single bonds.

Compound A: Two alkenes are joined by a sigma bond.

For example:

$-CH_2=CH-CH=CH2-$

It is a conjugated diene.

Compound B: Two alkenes are joined by a C H 2 group.

It is a cumulative diene.

Compound C: Two alkenes are joined by C H 2 C H 2.

Then it is an isolated alkene.

Compound D: A cyclohexene has a double bond between carbons 1 and 2. Carbon 3 is an sp 2 carbon that is bonded to another s p 2 carbon with an alkyl substituent.

Hence, compound D is a conjugated diene.

8 0

2 years ago