2 years ago

Which of the following could be considered a scientific method? 01.01 the science of chemistry

Chemistry

2 answers:

Lorico [155]2 years ago

6 0

Choose all options that apply. Which of the following are equal to 20%? | a) .25 b) 1/5 Oc) 1/10 d) .20

d1i1m1o1n [39]2 years ago

3 0

Answer:

a) the ability to extend the theory to make predictions

b) it is explanatory

Explanation:

Could be a Hallmark of a Scientific Theory: a & b

-Quizlet

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1. A solution is always a mixture (true or false)

lakkis [162]

Answer:

yes solution is always a mixture but not all mixtures are solution

Explanation:

A solution.is a homogeneous mixture of substance that have uniform composition throughout

And a mixture hVe twoo or more substances that are not chemically.combine

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2 years ago

Which of the following chemical equations is unbalanced? A. 2C + H2 CH4 B. 2Al2O3 4Al + 3O2 C. 2H2O2 2H2O + O2 D. 2C2H6 + 7O2 4C

Tanya [424]

Answer:

A. 2C + H₂ ⟶ CH₄

Explanation:

A. 2C + H₂ ⟶ CH₄

UNBALANCED. 2C on the left and 1C on the right

B. 2Al₂O₃ ⟶ 4Al + 3O₂

Balanced. Same number of each type of atom on each side.

C. 2H₂O₂ ⟶ 2H₂O + O₂

Balanced. Same number of each type of atom on each side.

D. 2C₂H₆ + 7O₂ ⟶ 4CO₂ + 6H₂O

Balanced. Same number of each type of atom on each side.

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3 years ago

Oxygen, nitrogen, and carbon are all ___________________.

Natalka [10]

Organic elements, depends on the context of the question but I suspect that is the answer. The organic elements are H,O,C,N,P,S

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3 years ago

In the reaction of 6 moles of CH4 with excess oxygen how many moles of water could be produced

Alex17521 [72]

The answer lies in the stoichiometry of the reaction. If u look at the number BEFORE the reagent u will see the ratios of the reagents.

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2 years ago

Can yall please help im very slow

mixas84 [53]

Answer:

turtle

Explanation:

they are slow and they take there time

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3 years ago