3 years ago

Which colors form part of the color wheel?

1 answer:

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Answer: primary colors are those you can't get by mix in other colors. They are red, blue, and yellow. secondary colors come from mixing two primary colors.

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If 0.507J of heat leads to a 0.007 degree C change in water, what mass is present?

Mamont248 [21]

Answer:

17.3 g

Explanation:

<u>Given the following data;</u>

Quantity of heat, Q = 0.507 J
Temperature = 0.007°C
Specific heat capacity of water = 4.2 J/g°C

Mathematically, Heat capacity is given by the formula;

$Q = MCT$

Where;

Q represents the heat capacity or quantity of heat.
M represents the mass of an object.
C represents the specific heat capacity of water.
T represents the temperature.

Making "M" the subject of formula, we have;

$M = \frac {Q}{CT}$

Substituting the values into the formula, we have;

$M = \frac {0.507}{4.2*0.007}$

$M = \frac {0.507}{0.0294}$

<em>Mass, m = 17.3 grams</em>

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Which pair of atoms is held together by a covalent bond HCl LiCl NaCl KCl

Luda [366]

Answer:

HCL

Explanation:

Covalent bond are formed between non metals so look for the pair of non metal atoms and this would be hydrogen chloride (HCL)

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At this lower concentration, about how many extra hydrogen bonds would be needed to hold a and b together tightly enough to form

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2..............................................

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Use the idea of diffuseition to explain how the smell of perfume travel

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When perfume is sprayed in a room the particles of perfume diffuse with the particles in the air.

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