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2 years ago

8

write at least on paragraph about space exploration and why it interests you. The moon can certainly be your focus however, you

may be interested in exploring other planets within or outside our own solar system.

1 answer:

Mariulka [41]2 years ago

8 0

hahahahhaahahahahhahacbhad

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Which characteristic best explains the difference in melting behavior of covalent substances and ionic substances? Ionic substan

AleksandrR [38]

Answer:

Covalent substances have weaker intermolecular attractions.

Explanation:

i just took the test

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2 years ago

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Which chemical is the reducing agent in the redox reaction below?

posledela

Option (a) is correct.

A reducing agent is the one which loses electrons to other substance.

Here, Zn has oxidation number 0 in the L.H.S of the equation, but on R.H.S its oxidation number is +2 i.e. it Zn has donated two of its electrons to $Fe^{2+}$ .

Hence, Zn is the reducing agent here.

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2 years ago

Ions are formed when atoms a) gain or lose protonsb) gain or lose electronsc) gain or lose neutrons d) each of these results in

lesya692 [45]

Answer:

b) Gain or lose electrons

Explanation:

An ion is an electrically charged particle. For an atom to be charged, it must have gained or lost electron in the process and therefore, it becomes an ion.

The loss or gain of electrons is what makes an atom charged and eventually becomes an ion.

A positively charged ion is one that has lost an electron and it is called a cation. In such an ion, the number of electrons are lesser than those of protons. This is why they are cations

A negatively charged ion is one that has gained electrons. They are called anions. In such an ion, the number of electrons are greater than that of protons.

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2 years ago

How many dL in 1,000 mL

zalisa [80]

there are 10 dl in 1000 ml . hope it helps

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3 years ago

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The units on the ruler are in nanometers (nm). look at the graduations on the ruler. what does each graduation represent?

ASHA 777 [7]

The units on the ruler are inches, centimeters, and millimeters. Nanometers (nm) is equivalent to 10^-9 m. Each graduation on the ruler represents 0.1 millimeters or 0.01 centimeters. The other side also has a graduation of 0.1 inch. The function of the ruler depends on how you use it.

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3 years ago

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