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Lelechka [254]
4 years ago
14

Fiona teaches sophomore geometry and senior calculus. Fiona is a.

Chemistry
2 answers:
ExtremeBDS [4]4 years ago
7 0
Fiona is a teacher.
madreJ [45]4 years ago
4 0
I`m thinking teacher or a professor 
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The action force always acts in the ____ direction as the reaction force
andriy [413]

Answer:

opposite

Explanation:

Newtons law explains that for every action force there is an equal and opposite reaction.

6 0
4 years ago
Sodiun atom, potassium atom, and cesium atoms have the same ?
Tpy6a [65]
Sodium atom , potassium atom and cesium atom have the same group number which is group 1
3 0
3 years ago
Read 2 more answers
Which equation represents a neutralization reaction? A. 4Fe(s) + 3O2(g) → 2Fe2O3(s) B. 2H2(g) + O2(g) → 2H2O() C. HNO3(aq) + KOH
devlian [24]

Answer : The correct option is, (C)

Explanation :

A. 4Fe(s)+3O_2(g)\rightarrow 2Fe_2O_3(s)

This is synthesis reaction in which the two or more reactant react to give a single product.

B. 2H_2(g)+O_2(g)\rightarrow 2H_2O(l)

This is combination reaction in which the two reactants combine to form a single product.

C. HNO_3(aq)+KOH(aq)\rightarrow KNO_3(aq)+H_2O(l)

This is a neutralization reaction in which an acid react with a base to give a salt and water as a product.

D. AgNO_3(aq)+KCl(aq)\rightarrow KNO_3(aq)+AgCl(s)

This is a double displacement reaction in which the positive cation and negative anion of two reactants exchange their places to give two new products.

Hence, the reaction (C) is a neutralization reaction.

4 0
3 years ago
Read 2 more answers
Lithium is a metal.
Zina [86]

Answer:

Explanation:

lithium: lithium is very soft, silvery metal. melting point is 180.54°C and boiling point is 1,335°C. it's density is 0.534 grams per cu.cm. oxygen: oxygen is colourless , odorless , tasteless gas

8 0
3 years ago
A 0.885 M solution of KBr whose initial volume is 82.5 mL has more water added until its concentration is 0.500 M. What is the n
4vir4ik [10]

Answer:

V_2=146mL

Explanation:

Hello there!

In this case, since the equation for the calculation of dilutions is:

M_1V_1=M_2V_2

Whereas M is the molarity and V the volume, because the final concentration is lower than the initial. Thus, since we are asked to calculate the final volume, we solve for V2 as follows:

V_2=\frac{M_1V_1}{M_2}=\frac{0.885M*82.5mL}{0.500M}\\\\V_2=146mL

Best regards!

4 0
3 years ago
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