What do you call the meetings of two planets/objects as seen from the earth? hurrry ASAP!!!!!

Light an energy is captured by the green pigment ?

lawyer [7]

Light and energy is captured by green pigment and chlorophyll molecules.

8 0

4 years ago

A precipitate of lead(II) chromate can be formed using the reaction below.

Marina86 [1]

Answer:

hi

Explanation:

7 0

3 years ago

A bottle containing 225 g of cleaning solution is used to clean hospital equipment. It's specific gravity is 0.830, what is the

Hatshy [7]

Answer: The volume of solution that was used is 271.08 mL

Explanation:

The relationship between specific gravity and density of a substance is given as:

$\text{Specific gravity}=\frac{\text{Density of a substance}}{\text{Density of water}}$

We are given:

Specific gravity of water = 0.830

Density of water = 1.00 g/mL

Putting values in above equation we get:

$0.830=\frac{\text{Density of solution}}{1.00g/mL}\\\\\text{Density of solution}=(0.830\times 1.00g/mL)=0.830g/mL$

To calculate the volume of solution, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

Density of solution = 0.830 g/mL

Mass of solution = 225 g

Putting values in above equation, we get:

$0.830g/mL=\frac{225g}{\text{Volume of solution}}\\\\\text{Volume of solution}=\frac{225g}{0.830g/mL}=271.08mL$

Hence, the volume of solution that was used is 271.08 mL

7 0

3 years ago

Calculate the percentage composition of oxygen and chlorine in naclo3

Whitepunk [10]

Answer:

To solve this problem, you simply find the total mass of each element in the molecule and divide by the molecular mass.

First, note the mass of the molecule and each element:

Na molar mass = 22.99 g/mol

Cl molar mass = 35.45 g/mol

O molar mass = 16.00 g/mol

NaClO3 molecular mass = 106.44g/mol

There is 1 Na atom per 1 NaClO3 molecule. Therefore,

% Na in NaClO3 = molar mass 1 Na atom / molar mass NaClO3 = (22.99g/mol) / (106.44g/mol) * 100 = 21.60% Na

There is 1 Cl atom per 1 NaClO3 molecule. Therefore,

% Cl in NaClO3 = molar mass 1 Cl atom / molar mass NaClO3 = (35.45g/mol) / (106.44g/mol) * 100 = 33.31% Cl

There are 3 O atoms per 1 NaClO3 molecule. Therefore,

% O in NaClO3 = 3 * molar mass 1 O Atom / molar mass NaClO3 = (3 * 16.00g/mol) / (106.44 g/mol) * 100 = 45.10% O

You can check your work by adding together the three percentages of each element, which should equal 100%. There may be slight discrepancy due to rounding. 21.60% + 33.31% + 45.10% = 100.01%

Explanation:

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6 0

3 years ago

Which has the largest atomic radius magnesium silicon sulfur or sodium the smallest

Monica [59]

Therefore the largest atoms are on the left and the smallest on the right. So sodium (Na) has the largest atomic radius, as the valence electrons are the least attracted to the nucleus

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5 0

4 years ago

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