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3 years ago

Choose the formula for hydroxide. OH HPO4 Ca(OH)2 d Ba(OH)2

Chemistry

2 answers:

yKpoI14uk [10]3 years ago

5 0

OH that’s the answer OH

dimulka [17.4K]3 years ago

4 0

Answer:

Explanation:

Hydroxide is a diatomic anion with chemical formula OH⁻.

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Convert 18g of Li into atoms.

gizmo_the_mogwai [7]

The full decimal is 2.59328...
When you round up the answer is 2.6 atoms of Li

8 0

3 years ago

Having food in the stomach __________ the rate at which a person's BAL rises.

Andreyy89

Answer:

Explanation:

It rises Food in your stomach (Food slows down alcohol absorption. What's the best to eat? Protein! It takes the longest to digest)

5 0

3 years ago

Read 2 more answers

Which one of the following is not a valid expression for the rate of the reaction below? 4NH3 + 7O2 → 4NO2 + 6H2O Which one of t

Veseljchak [2.6K]

Answer : All of the above are valid expressions of the reaction rate.

Explanation :

The given rate of reaction is,

$4NH_3+7O_2\rightarrow 4NO_2+6H_2O$

The expression for rate of reaction for the reactant :

$\text{Rate of disappearance of }NH_3=-\frac{1}{4}\times \frac{d[NH_3]}{dt}$

$\text{Rate of disappearance of }O_2=-\frac{1}{7}\times \frac{d[O_2]}{dt}$

The expression for rate of reaction for the product :

$\text{Rate of formation of }NO_2=+\frac{1}{4}\times \frac{d[NO_2]}{dt}$

$\text{Rate of formation of }H_2O=+\frac{1}{6}\times \frac{d[H_2O]}{dt}$

From this we conclude that, all the options are correct.

3 0

3 years ago

A rabbit has a mass of 2 kg. what is the weight?

jarptica [38.1K]

W = F = mg
(2)(9.8)
W = 19.6 N

6 0

2 years ago

How many grams of Mg are needed to produce 224 g of MgO in the complete reaction of Mg

zmey [24]

Answer:

134.4 g of Mg

Explanation:

reaction:

2Mg + O2 ➡️ 2MgO

1) find the mol of MgO

mol = mass / molar mass

mass = 224 g

molar mass = 24+16 = 40

mol = 224 / 40

= 5.6 moles

2 mol = 5.6 moles

2) find the mass of Mg

mass = mol × molar mass

mol = 5.6

molar mass = 24

mass = 5.6 × 24

= 134.4 g

7 0

3 years ago