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MrRissso [65]
3 years ago
8

Despite the existence of research data that might inform policy about development , political rarely discuss such data in thier

speeches why do you think
SAT
1 answer:
lapo4ka [179]3 years ago
5 0
It is true that despite the existence of research data that might inform policy about development, political rarely discuss such data in their speeches. The reason is that the participants in the study and research must be protected from physical and psychological harm and researchers must obtain informed consent from participants before their involvement in a study.
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Which statement best describes how chemical equations demonstrate conservation of mass?
scoray [572]

Answer:

Explanation:

Let's just get the answer and then show why the others are wrong.

The answer is C.

The number of reactants and Products need not be the same

C3H8 + 5O2 ===> 3CO2 + 4H2O

The reactants = 1 + 5 = 6

The products = 3 + 4 = 7

So A is incorrect.

================

B is saying that

C3H8 + 5O2 ===> C3H8 + 5O2

The answer is obviously not B

======================

C8H18(l) + O2(g) ==> CO2(g) + H2O(g)      unbalanced

Gasoline is a liquid. All the rest are gases. D is wrong.

=================

C is correct

The left side has

3 Cs

8 Hs

and 10 Os

The right side has

3Cs

8Hs

10 Os

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3 years ago
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castortr0y [4]

Answer:625

Explanation:

 25 \dfrac{x}{y}=4\\ \dfrac{25}{4}= \dfrac{y}{x}\\ 100 \dfrac{25}{4}= 100\dfrac{y}{x}\\ =625

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2 years ago
This question is for Child Development!
Ivan
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