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Jlenok [28]
3 years ago
10

Ronald has a candy mixture. It has brown chocolate pieces and various colored hard candy pieces. All the candy pieces are the sa

me shape, size, and weight. What physical properties could be used to separate these mixtures? Select all that apply.
A.

color
B.

weight
C.

shape
D.

magnetism
E.

melting point
Chemistry
1 answer:
Keith_Richards [23]3 years ago
8 0

Answer:

A and E for sure.

Explanation:

Can't be B or C, since it is stated in the problem. And probably not D because candy don't have magnetism to them.

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How to balance barium and oxygen yield barium oxide
olga55 [171]
Barium : Ba^{+2} with +2 being the charge
Oxygen : O^{-2} with -2 being the charge

The given equation can be written as:
Ba + O = BaO

Since the sum charges of Barium and Oxygen equals 0, there is no need to add subscripts.

Both Ba and O appear on the left and right side of the equation once, so there is no need to add a coefficient.

Ba + O = BaO is balanced
4 0
3 years ago
The conversion of methyl isonitrile to acetonitrile in the gas phase at 250 °C CH3CN(g) is first order in CH3NC with a rate cons
nadya68 [22]

Answer: The concentration of CH_3NC will be 1.56\times 10^{-2}M after 416 seconds have passed.

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant = 3.00\times 10^{-3}s^{-1}

t = age of sample = ?

a = let initial amount of the reactant = 5.45\times 10^{-2}M

a - x = amount left after decay process = 1.56\times 10^{-2}M

t=\frac{2.303}{3.00\times 10^{-3}}\log\frac{5.45\times 10^{-2}}{1.56\times 10^{-2}}

t=416s

The concentration of CH_3NC will be 1.56\times 10^{-2}M after 416 seconds have passed.

5 0
3 years ago
What is the empirical formula of a hypothetical compound that is 96%S and 4% H?​
Bess [88]

Explanation:

Let the mass of the compound be 100g.

Mass of Sulfur = 96g.

=> Moles of Sulfur

= 96g / (32.07g/mol) ≈ 3

Mass of Hydrogen = 4g.

=> Moles of Hydrogen

= 4g / (1.008g/mol) ≈ 4

Mole ratio of Sulfur to Hydrogen = 3 : 4,

Empirical formula of compound = S3H4.

8 0
3 years ago
Which statement describes the light reaction of photosynthesis?
cupoosta [38]

Answer:

A

Explanation:

water molecules are combined to make food

5 0
3 years ago
Which statement about the scientific veiws is correct?
hammer [34]
I think the answer will be b cuh
4 0
4 years ago
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