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Alchen [17]
3 years ago
15

What is the first basic metal on the periodic table

Chemistry
1 answer:
kherson [118]3 years ago
4 0

The first basic metals on the periodic table are alkali metals.
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Calculate how many grams of oxygen form when each quantity of reactant completely reacts.. . 2HgO----->2Hg+O2
goblinko [34]
<span>6.96g HgO
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3 0
3 years ago
Lana balanced an equation so that the result was 2C2H3Br + 5O2 → 4CO2 + 2H2O + 2HBr. Which most likely represents the starting e
seropon [69]

Answer:

C2H3Br + O2 → CO2 + H2O + HBr

Explanation:

The term balancing of chemical reaction equation has a unique meaning in chemistry. What it actually means is to ensure that the number of atoms of each element on the left hand side of reaction equation becomes equal to the number of atoms of the same element on the right hand side of the reaction equation.

When we look at the equation; C2H3Br + O2 → CO2 + H2O + HBr, the number of atoms of each element on the left and right hand sides of the given equation are not the same hence the equation is unbalanced.

If we look at the equation; 2C2H3Br + 5O2 → 4CO2 + 2H2O + 2HBr, the number of atoms of each element on both sides of the reaction equation are now equal, thus the later equation is the balanced version of the former.

6 0
3 years ago
Plz help!<br> How does the path of a river change over time? (describe the process)
nikitadnepr [17]
All rivers erode the land over which they pass rendering a more gradual radiant to surrounding areas overtime.
3 0
3 years ago
Read 2 more answers
How many inches is in 10 cm? Use dimensional analysis to show your work. Include the work in your answer.
Mumz [18]

Answer:

To get the answer divide 10cm by 2.54

Explanation:

\frac{10}{2.54} \\  = 10 \div  \frac{254}{100} \\  = 10 \times  \frac{100}{254} \\  =  \frac{1000}{254} = 3.937inches

Hope this helps

6 0
3 years ago
Can someone pls help me?
kolbaska11 [484]

Answer:

17

Explanation:

what is the independent variable

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3 years ago
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