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SIZIF [17.4K]
3 years ago
13

Suppose you are helping mccarthy choose her sample sites. you have the resources to conduct the study at only 4 sites. pick the

4 sites that allow all 4 possible treatment combinations, while controlling for sunlight. drag a check mark to each site you would use, and drag xs to the sites you would not use. you should end up placing 4 check marks and 8 xs. labels can be used more than once.
Chemistry
1 answer:
VARVARA [1.3K]3 years ago
4 0

I dont know the answer

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Who is Harry Styles?
SOVA2 [1]

Answer:

Harry Edward Styles is an English singer, songwriter and actor. His musical career began in 2010 as a solo contestant on the British music competition series The X Factor.

Explanation:

Hope this help!

5 0
2 years ago
Calculate the number of gold atoms in a sample of gold(III) chloride . Be sure your answer has a unit symbol if necessary, and r
Fudgin [204]

Answer: N = 2.78 × 10^23 atoms

There are N = 2.78 × 10^23 atoms in 70g of Au2cl6

Completed Question:

Calculate the number of gold atoms in a 70g sample of gold(III) chloride . Be sure your answer has a unit symbol if necessary, and round it to significant digits

Explanation:

Given:

Molar mass of Au2cl6 = 303.33g/mol

Mass of Au2cl6 = 70g

Number of moles of Au2cl6 = 70g/303.33g/mol = 0.231mol

According to the chemical formula of Au2cl6,

1 mole of Au2cl6 contains 2 moles of Au

Number of moles of Au = 2 × 0.231mol = 0.462mole

There are 6.022 × 10^23 atoms in 1 mole of an element.

Number of Atom of gold in 0.462 mole of gold is:

N = 0.462 mol × 6.022 × 10^23 atoms/mol

N = 2.78 × 10^23 atoms

7 0
3 years ago
A substance with a define shape and volume is a blank phase of metter
aksik [14]
Definite Shape and Definite Volume is a solid.

NO Definite Shape and Definite Volume is a liquid.

NO Definite Shape and NO Definite Volume is a gas.
4 0
2 years ago
What is the electronegativity difference for a bond between potassium and iodine? A. 3.3 B. 4.6 C. 0.4 D. 1.7
user100 [1]
Iodine has an electronegativity of 2.5, and potassium has an electronegativity of 0.8, so the difference is:
2.5 - 0.8 = 1.7
7 0
3 years ago
Read 2 more answers
A 12.2-g sample of x reacts with a sample of y to form 78.9 g of xy. what is the mass of y that reacted?
Sonja [21]
We will assume that the only reactants are x and y and that the only product is xy.

Based on the law of mass conservation, mass is an isolated system that can neither be created nor destroyed.

Applying this concept to the chemical reaction, we will find that the total mass of the reactants must be equal to the total mass of the products,
therefore:
mass of x + mass of y = mass of xy
12.2 + mass of y = 78.9
mass of y = 78.9 - 12.2 = 66.7 grams
4 0
3 years ago
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