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Montano1993 [528]
4 years ago
5

Precambrian rocks were primarily which type of rocks?

Chemistry
1 answer:
nataly862011 [7]4 years ago
3 0
B. sedimentary rocks
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Which of the following describes a circular current in a fluid that
Vanyuwa [196]

Answer:

C- convection (convectional current)

Explanation:

Convection occurs in fluids e.g gases and liquids. It is the prices by which heat energy is transferred in a fluid by the actually movement of the heated fluid.

It is also called convectional current when the term current is used in the question.

8 0
3 years ago
A company wants to sell more sports drinks so they decide to add more sugar. For Group A they
ycow [4]

Answer:

Group B

Explanation:

The control group of an experiment is considered to be the "normal" because it does not receive the expeiemental treatment and hence is used to compare with the experimental group. The control and experimental groups are similar in every other aspect with the exception of the "INDEPENDENT VARIABLE". The independent variable is not changed in the control group.

In this experiment, the control group is GROUP B, which was given a plain gatorade without adding sugar. Sugar is the independent variable here, and it was not included in GROUP B, meaning that GROUP B is the CONTROL GROUP. On the other hand, the experimental group is the GROUP A.

8 0
3 years ago
What is the mass of 2.50 × 1025 molecules of sugar (c12h22o11)?
allochka39001 [22]
To determine the mass of the sugar molecules given, we  need to convert the given value into moles by using the a constant. <span>Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles. Then, by using the molar mass of sugar, we can convert from moles to grams. Molar mass of sugar is 342.3 g/mol. We do as follows:

</span><span>2.50 × 10^25 molecules of sugar ( 1 mol / 6.022x10^23 g ) ( 342.3 g / 1 mol) = 14210.40 grams of sugar present</span>

3 0
4 years ago
Complete and balance each equation. If no reaction occurs write N/R.<br> NaOH(aq) + FeBr3(aq)
Shtirlitz [24]
FeBr3(aq) + NaOH(aq) = FeOH(s) + NaBr3(aq) 
8 0
3 years ago
Which of the following lists of elements are in the same PERIOD? *
yuradex [85]
Ca, V, Cu, Kr
Remember a period is a the horizontal rows in the Periodic Table.

5 0
3 years ago
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