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Worksheets#ICTUSD Science Students! 093
Total questions: 22
Worksheet time: 34mins
Which are the outermost electrons of an atom?
Ionic electrons
Valence electrons
Covalent electrons
Electric electrons
Known A = {2, 3, 4} and B = {1, 3}, A ∪ B = ....
{3}
{1, 2}
{2, 3, 4}
{1, 2, 3, 4}
Determine 28 + 7 x (-5)
-7
7
-63
63
Infectious diseases of the human genitals caused by the bacterium Treponema pallidum are called ...
HIV
Syphilis
The following are conditions that can occur if the liver is broken
Disruption of organ system function
Can cause disease
Accumulation of a toxic in the body
All are correct
Determine –12 + 20 × 4 – (–6) : 3 = ...
110
70
34
30
What is the formula for calculating pH?
pH = -log/[H3O+]
pH = -log[H3O+]
pH/log = -log[H3O+]
pH = -log[OH-]
The substance that is reduced in a reaction is also called _____.
a reducing agent.
a reactant.
an oxidizing substance.
an oxidizing agent.
The following is a pair of principal quantities along with the appropriate International System (SI) unit is ...
Mass - gram (g)
Temperature - Celsius (ºC)
Strong current - ampere (A)
Length - kilometers (km)
The following are the characteristics possessed by the Protista group
prokaryotic
eukaryotic
makroskopis
multicellular
p value that satisfies the equation 4p + 3q = 20 and 2p - q = 3, is...
0
1
2
3
Based on the picture above the role of ferrets in ecosystems is as ...
producer
level I consumers
decomposer
level II consumers
The following human activities that can reduce the level of air pollution in Jakarta
use of public transportation
burning garbage
cigarette consumption
motor vehicle use
How many valence electrons do the chalcogens have?
3
4
5
6
How many natural amino acids are there?
16
7
20
25
Which units of pressure are needed if you are going to use 0.0821 as your ideal gas constant?
Pascals
Atmospheres
torr
mmHg
What is the chemical formula for the compound copper(II) nitrate?
CCl4
HCl4
RbNO3
Cu(NO3)2
What is the name of the compound MgSO4?
lead(II) iodide
magnesium sulfate
A compound is found to contain 24.8% carbon, 2.0% hydrogen, and 73.2% chlorine with a molecular mass of 96.9 g/mol. What is the molecular formula?
C2H2Cl2
Fe3O4
C6H12O6
C6H14O3PF
The chemical reaction Ca(OH)2 + H2SO4 → CaSO4 + 2 H2O :
combustion reaction
decomposition reaction
double displacement reaction
respectively, the x and y values that satisfy the equation x + 5y = 13 and 2x - y = 4, is...
2 and 3
3 and 2
Muscles are movers of body parts. The following types of muscles that work consciously are ...
smooth muscle and skeletal muscle
skeletal muscle and heart muscle
skeletal muscle only
