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Grace [21]
3 years ago
6

IM ON A TIMER HELP!! Which planets are terrestrial? Check all that apply.

Chemistry
2 answers:
Len [333]3 years ago
7 0
The four closest planets to the Sun, so Mars and Mercury
Masja [62]3 years ago
5 0

Mercury Venus Earth And Mars


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What is the volume of 62.3 g of nitrogen gas at stp?
andre [41]

Answer:

The volume of nitrogen gas at STP is 55.1 liters

3 0
3 years ago
Pls help!!! Write asap!! <br> How many moles of sulfur are there if you have 0.994g of sulfur
timama [110]

To convert weight to moles, we must use the molar weight found on the periodic table. Sulfur's (S) molar weight is 32.06 g/mol. Then we set up an equation and cancel out units:

\frac{1mole}{32.06g}*0.994g=0.031mol=3.1*10^{-2}mol

So now we know that 0.994g of sulfur is equal to 0.031 moles.

5 0
3 years ago
How do you prove a scalene triangle is a right triangle?
Mrrafil [7]

if all sides are unequal it is scalene and if one angle adds up to 90 while the rest are different youve proven it.

3 0
3 years ago
IDENTIFY THE CHEMICAL REACTIONS( CLICK ALL THAT APPLY)
AlladinOne [14]

Answer:

B. single replacement

Explanation:

5 0
4 years ago
Read 2 more answers
14.
Vesnalui [34]

Answer:

Mass = 72.52 g

Explanation:

Given data:

Mass of hydrogen phosphate produced = ?

Mass of P₂O₅ react = 105.9 g

Solution:

Chemical equation:

P₂O₅ + 3H₂O     →     2H₃PO₄

Number of moles of P₂O₅:

Number of moles = mass/molar mass

Molar mass of P₂O₅ 283.9 g/mol

Number of moles = 105.9 g/ 283.9 g/mol

Number of moles = 0.37 mol

Now we will compare the moles of P₂O₅ with H₃PO₄ from balance chemical equation.

                     P₂O₅        :         H₃PO₄

                         1           :           2

                      0.37        :        2/1×0.37= 0.74 mol

Mass of H₃PO₄ :

Mass = number of moles × molar mass

Mass = 0.74 mol ×  98 g/mol

Mass = 72.52 g

7 0
3 years ago
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