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3 years ago

Hi can someone help me quickly please its for chemistry

Chemistry

1 answer:

lara [203]3 years ago

3 0

Answer:

Explanation:

The atom X has 1 1 protons (atomic number) and thus would have 11 electrons. This means the atom X would have 1 valence electron in it's outermost shell. While the atom Y has 17 protons (atomic number) and thus would have 17 electrons. This means the atom Y would have 7 electrons in it's outermost shell.

The type of bond this atoms (X and Y) would form is an Ionic (or electrovalent) bond. This bond/combination involves the transfer of electron(s) and a molecule is not formed as seen in the image below.

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Which of the following are types of muscle? * Tendon Cardiac Smooth skeletal

Wewaii [24]

Answer:

i'm pretty sure that the smooth,skeletal,and the cardiac are muscles.hope that helps!

Explanation:

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3 years ago

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1.For Structure B the bond between carbon and sulfur is polar or non polar

Inga [223]

Answer:

polar

Explanation:

because carbon and sulfur have different electronegativities, the S=C bond is polar.

The entire molecule is nonpolar however because the dipoles (polar bonds) cancel out due to the geometry of the molecule (linear)

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3 years ago

Green plants absorb sunlight to power photosynthesis, the chemical synthesis of food from water and carbon dioxide. The compound

Kamila [148]

Answer:

$698 \ THz$

Explanation:

Data provided as per the question below:-

Wavelength = 430.nm

The computation of the frequency of the light is shown below:-

Frequency = Velocity of light ÷ Wavelength

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Wavelength = 430 nm = $4.30 \times 10^-^7$ m

Frequency = $\frac{3.0 \times 10^8 \ m/s}{4.30 \times 10^-^7}$

$= 6.98 \times 10^1^4 \ hz$

$= 6.98 \times 10^2 \ Thz$

= $698 \ THz$

Therefore for determining the frequency we simply applied the above formula.

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3 years ago

Every substance melts at 0 degrees Celsius and boils at 100 degrees Celsius.

Gnom [1K]

False, that only applies to water as far as I know, but I know for a fact that gold does not melt at 0 degrees Celsius

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umka21 [38]

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