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slamgirl [31]
3 years ago
14

Can someone please do this for me

Chemistry
1 answer:
QveST [7]3 years ago
7 0
Hello! I can help you with this! Here are the answers that work for each sentence:

1. chemistry
2. matter
3. substance
4. physical
5. chemical
6. elements
7. compound
8. mixture
9. heterogeneous
10. homogeneous
11. atom
12. chemical bond
13. molecule
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By definition 12 grams of carbon-12 must contain how many atoms?
krek1111 [17]
It is defined as the amount of a substance that contains as many particles as there are atoms in 12 grams of pure carbon-12. So, 1 molecule contains 6.022×10^23 elementary entities of the substance.

Hope that helps
5 0
3 years ago
what criteria are likely to dictate certain pairs of elements to undergo ionic bonding and others covalent bonding?
Paha777 [63]

Answer:

If one element is a metal and the other element is a non metal

Explanation:

Ionic bonds are formed between metals and non metals. The nonmetal atom receives electron(s) from a metal atom to form an ionic substance. This means that ionic substances are basically an ion pair.

Covalent bonds are mostly formed between two nonmetals. These elements share electrons with each other in order to form the compound.

7 0
2 years ago
02. Using Tables 1 to 3, what pattern do you observe in terms of the phase and number of carbon atoms of the alkanes, alkenes, a
BabaBlast [244]

Hey there mate ;), Im Benjemin and lets solve your question.

★ (Alkanes) : forms single bonds between carbon atoms.

The first four elements are gases and others are liquid in state.

★(Alkenes) : forms double bonds between carbon atoms.

The first three alkenes are gases and rest are liquid.

★ (Alkynes) : forms triple bonds between carbon atoms.

First three are gases and the last one is liquid.

According to boiling point :

The larger structure of the hydrocarbons, the higher the boiling points they have.

In the 3 tables, we can see that the boiling point increases.

5 0
3 years ago
Help me, please. I Don't get my homework.
Lisa [10]
We’d have to be very careful because if we had our skeletons on the outside it’d be very easy to injure ourselves
7 0
3 years ago
Read 2 more answers
A uranium atom has 92 protons in its nucleus. how many electrons does it have?
sweet [91]
In a balanced, non-charged atom, the number of protons (positive charge) is equal to the number of electrons (negative charge)

So there are 92 electrons
4 0
3 years ago
Read 2 more answers
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