Latest replies
Kittens! Please tell me! Their mother disappears in the park all day: sniffing and no,
guest
Read Answer
Sexual and asexual. Asexual reproduction: Budding, Spore formation and division
guest
Read Answer
1. This carbon exists native only in two forms, diamond and graphite, in us
guest
Read Answer
Once, everyone in the class had tests 2 and 3, the teacher swore that
guest
Read Answer
cleaner driver director
guest
Read Answer
Grandfather and Vanya made it to Pochtovaya Street just in time - because of the Oka, it was high
guest
Read Answer
Before presenting the given expression as the difference of squares, and then
guest
Read Answer
c. high
guest
Read Answer
Problem 1
Given:
m (C6H12O6) = 1 g
To find:
m (H2O) -?
Re
guest
Read Answer
Exercise 1
1. Acids: HNO3, H3PO4.
2. Acidic oxides: SO3, CO2.
guest
Read Answer
KMnO4 + K2SO3 + H2SO4 => MnSO4 + K2SO4 + H2O;
MnO4 (-) + SO3 (2-) + 2H (+) =>
guest
Read Answer
a) CaO + H2O => Ca (OH) 2;
Ca (OH) 2 + CO2 => CaCO3 ↓ + H2O;
CaCO3 + CO2 +
guest
Read Answer
Given:
m (NH3) = 42.5 kg = 42500 g
m (HNO3) = 165 kg = 165000 g
H
guest
Read Answer
1. When carbon dioxide is passed through a solution of calcium hydroxide,
guest
Read Answer
History and life of the Crimea. All about Crimea
guest
Read Answer
Expand the brackets: 6x + 12y-12x + 8y We give similar terms: -6x + 20y
guest
Read Answer
In order to simplify the expression, we must open the parentheses and then group
guest
Read Answer
Given:
m (Cr2O3) = 19 g
ω out. = 90%
To find:
m pract. (Cr) -?
guest
Read Answer
1) H2SO4 + K2CO3 => K2SO4 + CO2 ↑ + H2O;
K2SO4 + Ba (OH) 2 => BaSO4 ↓ + 2KOH
guest
Read Answer
The reaction equation is correct. First, in the interaction of alkali, and KOH is another
guest
Read Answer
